Participatory Workplace Interventions Can Reduce Sedentary Time for Office Workers—A Randomised Controlled Trial An intervention to reduce sitting and increase light-intensity physical activity at work: Design and rationale of the 'Stand & Move at Work' group randomized trial. Total Worker Health Intervention Increases Activity of Sedentary Workers. Breaking up Sedentary Time in Overweight/Obese Adults on Work Days and Non-Work Days: Results from a Feasibility Study Objectively measured physical activity in four-year-old British children: a cross-sectional analysis of activity patterns segmented across the day Intra-individual variability in day-to-day and month-to-month measurements of physical activity and sedentary behaviour at work and in leisure-time among Danish adults Results of the Sedentary Intervention Trial in Cardiac Rehabilitation (SIT-CR Study): A pilot randomized controlled trial. The application of an occupational health guideline reduces sedentary behaviour and increases fruit intake at work: results from an RCT Objectively Measured Sedentary Time May Predict Insulin Resistance Independent of Moderate- and Vigorous-Intensity Physical Activity How active are our children? Findings from the Millennium Cohort Study Replacing sedentary time with sleep, light, or moderate-to-vigorous physical activity: effects on self-regulation and executive functioning Impact of objectively measured sedentary behaviour on changes in insulin resistance and secretion over 3 years in the RISC study: interaction with weight gain. The Relationship of Objectively Measured Physical Activity and Sedentary Behaviour with Gestational Weight Gain and Birth Weight A comparison of work-related physical activity levels between inpatient and outpatient physical therapists: an observational cohort trial Objectively Measured Moderate- and Vigorous-Intensity Physical Activity but Not Sedentary Time Predicts Insulin Resistance in High-Risk Individuals A behaviour change intervention to reduce sedentary time in people with chronic obstructive pulmonary disease: protocol for a randomised controlled trial. Impact of the Supporting Physical Activity in the Childcare Environment (SPACE) intervention on preschoolers’ physical activity levels and sedentary time: a single-blind cluster randomized controlled trial Effects of a playground marking intervention on school recess physical activity in French children. Sedentary behavior & health-related quality of life among congestive heart failure patients. Effectiveness of a walking programme to support adults with intellectual disabilities to increase physical activity: walk well cluster-randomised controlled trial Accelerometer-measured dose-response for physical activity, sedentary time, and mortality in US adults. Compliance with physical activity guidelines in a group of UK-based postal workers using an objective monitoring technique Promoting physical activity in rural Australian adults using an online intervention. Exercise more or sit less? A randomized trial assessing the feasibility of two advice-based interventions in obese inactive adults. Objective vs. Self-Reported Physical Activity and Sedentary Time: Effects of Measurement Method on Relationships with Risk Biomarkers Self-efficacy enhancing intervention increases light physical activity in people with chronic obstructive pulmonary disease Definition, measurement, and health risks associated with sedentary behavior. Accelerometer-measured sedentary time and physical activity-A 15 year follow-up of mortality in a Swedish population-based cohort. Weekend and weekday patterns of physical activity in overweight and normal-weight adolescent girls. Walk2Bactive: A randomised controlled trial of a physical activity-focused behavioural intervention beyond pulmonary rehabilitation in chronic obstructive pulmonary disease. Physical activity, sedentary behavior and total wellness changes among sedentary adults: a 4-week randomized controlled trial Out and about: association of the built environment with physical activity behaviors of adolescent females.
Background Occupational sedentary behaviour is an important contributor to overall sedentary risk . There is limited evidence for effective workplace interventions to reduce occupational sedentary time and increase light activity during work hours . The purpose of the study was to determine if participatory workplace interventions could reduce total sedentary time , sustained sedentary time ( bouts > 30 minutes ) , increase the frequency of breaks in sedentary time and promote light intensity activity and moderate/vigorous activity ( MVPA ) during work hours . Methods A r and omised controlled trial ( ANZCTR number : ACTN12612000743864 ) was conducted using clerical , call centre and data processing workers ( n = 62 , aged 25–59 years ) in 3 large government organisations in Perth , Australia . Three groups developed interventions with a participatory approach : ‘ Active office ’ ( n = 19 ) , ‘ Active Workstation ’ and promotion of incidental office activity ; ‘ Traditional physical activity ’ ( n = 14 ) , pedometer challenge to increase activity between productive work time and ‘ Office ergonomics ’ ( n = 29 ) , computer workstation design and breaking up computer tasks . Accelerometer ( ActiGraph GT3X , 7 days ) determined sedentary time , sustained sedentary time , breaks in sedentary time , light intensity activity and MVPA on work days and during work hours were measured before and following a 12 week intervention period . Results For all participants there was a significant reduction in sedentary time on work days ( −1.6 % , p = 0.006 ) and during work hours ( −1.7 % , p = 0.014 ) and a significant increase in number of breaks/sedentary hour on work days ( 0.64 , p = 0.005 ) and during work hours ( 0.72 , p = 0.015 ) ; there was a concurrent significant increase in light activity during work hours ( 1.5 % , p = 0.012 ) and MVPA on work days ( 0.6 % , p = 0.012 ) . Conclusions This study explored novel ways to modify work practice s to reduce occupational sedentary behaviour . Participatory workplace interventions can reduce sedentary time , increase the frequency of breaks and improve light activity and MVPA of office workers by using a variety of interventions . Trial Registration Australian New Zeal and Clinical Trials Registry ACTN12612000743864 BACKGROUND American workers spend 70 - 80 % of their time at work being sedentary . Traditional approaches to increase moderate-vigorous physical activity ( MVPA ) may be perceived to be harmful to productivity . Approaches that target reductions in sedentary behavior and /or increases in st and ing or light-intensity physical activity [ LPA ] may not interfere with productivity and may be more feasible to achieve through small changes accumulated throughout the workday METHODS / DESIGN : This group r and omized trial ( i.e. , cluster r and omized trial ) will test the relative efficacy of two sedentary behavior focused interventions in 24 worksites across two states ( N=720 workers ) . The MOVE+ intervention is a multilevel individual , social , environmental , and organizational intervention targeting increases in light-intensity physical activity in the workplace . The ST AND + intervention is the MOVE+ intervention with the addition of the installation and use of sit-st and workstations to reduce sedentary behavior and enhance light-intensity physical activity opportunities . Our primary outcome will be objective ly-measured changes in sedentary behavior and light-intensity physical activity over 12months , with additional process measures at 3months and longer-term sustainability outcomes at 24months . Our secondary outcomes will be a clustered cardiometabolic risk score ( comprised of fasting glucose , insulin , triglycerides , HDL-cholesterol , and blood pressure ) , workplace productivity , and job satisfaction DISCUSSION : This study will determine the efficacy of a multi-level workplace intervention ( including the use of a sit-st and workstation ) to reduce sedentary behavior and increase LPA and concomitant impact on cardiometabolic health , workplace productivity , and satisfaction . TRIAL REGISTRATION Clinical Trials.gov Identifier : NCT02566317 ( date of registration : 10/1/2015 ) INTRODUCTION Office employees are exposed to hazardous levels of sedentary work . Interventions that integrate health promotion and health protection elements are needed to advance the health of sedentary workers . This study tested an integrated intervention on occupational sedentary/physical activity behaviors , cardiometabolic disease biomarkers , musculoskeletal discomfort , and work productivity . DESIGN Two-group , RCT . Data were collected between January and August 2014 . SETTING / PARTICIPANTS Overweight/obese adults working in sedentary desk jobs were r and omized to : ( 1 ) a health protection-only group ( HPO , n=27 ) ; or ( 2 ) an integrated health protection/health promotion group ( HP/HP , n=27 ) . INTERVENTION HPO participants received an ergonomic workstation optimization intervention and three e-mails/week promoting rest breaks and posture variation . HP/HP participants received the HPO intervention plus access to a seated activity permissive workstation . MAIN OUTCOME MEASURES Occupational sedentary and physical activity behaviors ( primary outcomes ) , cardiometabolic health outcomes , musculoskeletal discomfort , and work productivity ( secondary outcomes ) were measured at baseline and post-intervention ( 16 weeks ) . RESULTS The HP/HP group increased occupational light intensity physical activity over the HPO group and used the activity permissive workstations 50 minutes/work day . Significant associations were observed between activity permissive workstation adherence and improvements in several cardiometabolic biomarkers ( weight , total fat mass , resting heart rate , body fat percentage ) and work productivity outcomes ( concentration at work , days missed because of health problems ) . CONCLUSIONS The HP/HP group increased occupational physical activity and greater activity permissive workstation adherence was associated with improved health and work productivity outcomes . These findings are important for employers interested in advancing the well-being of sedentary office workers . TRIAL REGISTRATION This study is registered at www . clinical trials.gov NCT02071420 Office workers are vulnerable to the adverse health effects of sedentary behavior ( i.e. , sitting time ) . Increasing physical activity and preventing time spent sitting is an occupational health priority . This r and omized crossover design study compared the short-term ( 3-days ) effects of hourly interruptions of sedentary time with 5-min micrrobouts of activity for 9 hours ( MICRO ) to a sedentary control condition ( SED ) and a duration -matched continuous single bout of physical activity ( 45-min/d , ONE ) condition on inclinometer-derived sitting-time on work and non-work days in sedentary overweight/obese adults . Differences in sitting/lying , st and ing , stepping , number of sit/st and transitions , time spent in moderate and vigorous activity ( MVPA ) , energy expenditure , self-perceived vigor and fatigue , and insulin sensitivity were also examined . Twenty-two participants ( 10M/12F ; 31.7 ± 1.3 year old BMI 30.4 ± 0.5 kg/m2 ) completed all conditions . No between-condition effects were observed in sitting-time and sit/st and transitions . Both interventions increased daily steps , MVPA and energy expenditure with increases being greater in ONE than MICRO . Feelings of vigor and fasting insulin sensitivity were also improved . Participants reported less fatigue with MICRO than SED and ONE . Both interventions increase physical activity and energy expenditure in occupational and leisure-time context s. The sustainability of these effects over the long term and on health outcomes will need to be tested in future studies Background Little is known about preschool-aged children ’s levels of  physical activity ( PA ) over the course of the day . Using time-stamped data , we describe the levels and patterns of PA in a population -based sample of four-year-old British children . Methods Within the Southampton Women ’s Survey the PA levels of 593 4-year-old children ( 51 % female ) were measured using ( Actiheart ) accelerometry for up to 7 days . Three outcome measures : minutes spent sedentary ( < 20 cpm ) ; in light ( LPA : ≥20 – 399 cpm ) and in moderate-to-vigorous activity ( MVPA : ≥400 cpm ) were derived . Average daily activity levels were calculated and then segmented across the day ( morning , afternoon and evening ) . MVPA was log-transformed . Two-level r and om intercept models were used to analyse associations between activity level and temporal and demographic factors . Results Children were active for 67 % ( mean 568.5 SD 79.5 minutes ) of their daily registered time on average , with 88 % of active time spent in LPA . All children met current UK guidelines of 180 minutes of daily activity . There were no differences in children ’s average daily levels of sedentary activity and LPA by temporal and demographic factors : differences did emerge when activity was segmented across the day . Sex differences were largest in the morning , with girls being more sedentary , spending fewer minutes in LPA and 18 % less time in MVPA than boys . Children were more sedentary and less active ( LPA and MVPA ) in the morning if they attended childcare full-time compared to part-time , and on weekend mornings compared to weekdays . The reverse was true for weekend afternoons and evenings . Children with more educated mothers were less active in the evenings . Children were less sedentary and did more MVPA on summer evenings compared to winter evenings . Conclusions Preschool-aged children meet current physical activity guidelines , but with the majority of their active time spent in LPA , investigation of the importance of activity intensity in younger children is needed . Activity levels over the day differed by demographic and temporal factors , highlighting the need to consider temporality in future interventions . Increasing girls ’ morning activity and providing opportunities for daytime activity in winter months may be worthwhile Background Accelerometers can obtain precise measurements of movements during the day . However , the individual activity pattern varies from day-to-day and there is limited evidence on measurement days needed to obtain sufficient reliability . The aim of this study was to examine variability in accelerometer derived data on sedentary behaviour and physical activity at work and in leisure-time during week days among Danish office employees . Methods We included control participants ( n = 135 ) from the Take a St and ! Intervention ; a cluster r and omized controlled trial conducted in 19 offices .  Sitting time and physical activity were measured using an ActiGraph GT3X+ fixed on the thigh and data were processed using Acti4 software . Variability was examined for sitting time , st and ing time , steps and time spent in moderate-to-vigorous physical activity ( MVPA ) per day by multilevel mixed linear regression modelling . Results Results of this study showed that the number of days needed to obtain a reliability of 80 % when measuring sitting time was 4.7 days for work and 5.5 days for leisure time . For physical activity at work , 4.0 days and 4.2 days were required to measure steps and MVPA , respectively . During leisure time , more monitoring time was needed to reliably estimate physical activity ( 6.8 days for steps and 5.8 days for MVPA ) . Conclusions The number of measurement days needed to reliably estimate activity patterns was greater for leisure time than for work time . The domain specific variability is of great importance to research ers and health promotion workers planning to use objective measures of sedentary behaviour and physical activity . Trial registration Clinical trials NCT01996176 BACKGROUND Sedentary time ( ST ) is negatively associated with cardiometabolic health and fitness . Traditional cardiac rehabilitation ( CR ) programming may not significantly reduce ST . The objectives of the study were to assess the feasibility and practicality of activPAL devices for measuring ST in CR , and whether prompting cues to interrupt sedentary behaviour can decrease ST and improve clinical outcomes . METHODS An 8-week , two-arm pilot r and omized controlled trial allocated coronary artery disease patients to either a control ( usual care CR ) or intervention ( CR + sedentary prompts from an activPAL3-VT ) group . Primary outcomes included : recruitment ; acceptability ; completion ; and , adherence rates . Secondary outcomes included changes in : ST ; physical activity ( PA ) ; cardiometabolic health ; psychosocial health ; and , fitness . RESULTS Forty participants ( 16 females ; 19 intervention ; 62 ± 10 years ) were r and omized . Outcome data were available for 95 % of participants . All but one participant completed the full intervention . Most ( 73 % ) intervention participants felt the prompts had somewhat changed their sedentary behaviour . At baseline , participants spent 47 % of their day sedentary . No significant group differences in changes for any of the ST , PA or fitness outcomes were observed . The mean group difference for post-intervention ST ( controlling for baseline ) was 30.3 min/day ( 95 % CI : -51.7 , 112.2 ) in favour of the intervention . The intervention group reported significantly better physical health and had a lower ratio of total cholesterol-to-high density lipoprotein when compared to controls . CONCLUSIONS It is feasible to use activPAL devices to measure ST in a CR setting . Further studies are needed to assess the effectiveness of multi-component sedentary behaviour interventions Objective To evaluate the effectiveness of a draft occupational health practice guideline aim ed at preventing weight gain on employees ' physical activity , sedentary behaviour and dietary behaviour and on body weight-related outcomes . Methods A r and omised controlled trial was performed comparing guideline -based care to usual care among 16 occupational physicians and 523 employees in the Netherl and s between 2009 and 2011 . Occupational physicians in the intervention group followed the draft guideline by providing advice to employers on how to assess and intervene on the obesogenic work environment and conducted five face-to-face behavioural change counselling sessions with employees to improve their lifestyle . Data of employees were collected by question naire and physical measurements at baseline and 6-months follow-up . Linear and logistic regression analyses were performed to determine effects . Results The intervention showed significant effects on sedentary behaviour at work ( β −28 min/day , 95 % CI −2 to −54 ) and on fruit intake ( β 2.1 pieces/week ; 95 % CI 0.6 to 3.6 ) . No significant intervention effects were found for physical activity , sedentary behaviour in leisure time or during weekend days , snack intake and body weight-related outcomes . Conclusion Guideline -based care result ed in a more favourable sedentary behaviour at work and increased fruit intake but did not improve employees '  physical activity , snack intake or body weight-related outcomes . Trial registration number IS RCT N/73545254 and NTR/1190 OBJECTIVE To examine the prospect i ve association between objective ly measured time spent sedentary and insulin resistance and whether this association is independent of moderate- and vigorous-intensity physical activity ( MVPA ) and other relevant confounders . RESEARCH DESIGN AND METHODS This was a population -based study ( Medical Research Council Ely study ) in 376 middle-aged adults ( 166 men ; 210 women ) over 5.6 years of follow-up .  Physical activity and sedentary time were measured objective ly by individually calibrated minute-by-minute heart rate monitoring at both baseline and follow-up .  Sedentary time  was calculated as the heart rate observations ( in minutes ) below an individually predetermined threshold ( flex heart rate ) and expressed as a percentage of total monitored time during waking hours over 4 days . The percentage of time spent above 1.75 × resting heart rate represented MVPA . Fasting plasma insulin was used as a surrogate measure of insulin resistance . RESULTS Time spent sedentary  at baseline was significantly and positively associated with log fasting insulin at follow-up ( β = 0.003 , 95 % CI 0.0006–0.006 , P = 0.015 ) independent of baseline age , sex , fat mass , fasting insulin , smoking status , and follow-up time . After further adjustment for MVPA , this association was somewhat strengthened ( β = 0.004 , 95 % CI 0.0009–0.006 , P = 0.009 ) . CONCLUSIONS Time spent sedentary predicts higher levels of fasting insulin independent of the amount of time spent at moderate- and vigorous-intensity activity levels . This highlights the importance of reducing sedentary time in order to improve metabolic health , possibly in addition to the benefits associated with a physically active lifestyle Objective To describe levels of physical activity , sedentary time and adherence to Chief Medical Officers ( CMO ) physical activity guidelines among primary school-aged children across the UK using objective accelerometer-based measurements . Design Nationally representative prospect i ve cohort study . Setting Children born across the UK , between 2000 and 2002 . Participants 6497 7-year-old to 8-year-old singleton children for whom reliable accelerometer data were available for at least 10 h a day for at least 2 days . Main outcome measures Physical activity in counts per minute ( cpm ) ; time spent in sedentary and moderate-to-vigorous intensity physical activity ( MVPA ) ; proportion of children meeting CMO guidelines ( ≥60 min/day MVPA ) ; average daily steps . Explanatory measures Gender , ethnicity , maternal current/most recent occupation , lone parenthood status , number of children in the household and country/region of residence . Results The median daily physical activity level was 595 cpm ( IQR 507 , 697 ) . Children spent a median of 60 min ( IQR 47–76 ) in MVPA/day and were sedentary for a median of 6.4 h/day ( IQR 6–7 ) . Only 51 % met CMO guidelines , with girls ( 38 % ) less active than boys ( 63 % ) . Children took an average of 10 229 ( 95 % CI ( 8777 to 11 775 ) ) steps each day . Children of Indian ethnicity were significantly less active overall than all other ethnic groups . Children of Bangladeshi origin and those living in Northern Irel and were least likely to meet CMO guidelines . Conclusions Only half of 7-year-old children in the UK achieve recommended levels of physical activity , with significant gender , ethnic and geographic variations . Longitudinal studies are needed to better underst and the relevance of these (in)activity patterns for long-term health and well-being . In the meantime population -wide efforts to boost physical activity among young people are needed which are likely to require a broad range of policy interventions Abstract Recent attention has highlighted the importance of reducing sedentary time for maintaining health and quality of life . However , it is unclear how changing sedentary behavior may influence executive functions and self-regulatory strategy use , which are vital for the long-term maintenance of a health behavior regimen . The purpose of this cross-sectional study is to examine the estimated self-regulatory and executive functioning effects of substituting 30 min of sedentary behavior with 30 min of light activity , moderate-to-vigorous physical activity ( MVPA ) , or sleep in a sample of older adults . This study reports baseline data collected from low-active healthy older adults ( N = 247 , mean age 65.4 ± 4.6 years ) recruited to participate in a 6 month r and omized controlled exercise trial examining the effects of various modes of exercise on brain health and function . Each participant completed assessment s of  physical activity self-regulatory strategy use ( i.e. ,  self-monitoring , goal - setting , social support , reinforcement , time management , and relapse prevention )  and executive functioning . Physical activity and sedentary behaviors  were measured using accelerometers during waking hours for seven consecutive days at each time point . Isotemporal substitution analyses were conducted to examine the effect on self-regulation and executive functioning should an individual substitute sedentary time with light activity , MVPA , or sleep . The substitution of sedentary time with both sleep and MVPA influenced both self-regulatory strategy use and executive functioning . Sleep was associated with greater self-monitoring ( B = .23 , p = .02 ) , goal - setting ( B = .32 , p < .01 ) , and social support ( B = .18 , p = .01 ) behaviors . Substitution of sedentary time with MVPA was associated with higher accuracy on 2-item ( B = .03 , p = .01 ) and 3-item ( B = .02 , p = .04 ) spatial working memory tasks , and with faster reaction times on single ( B = −23.12 , p = .03 ) and mixed-repeated task-switching blocks ( B = −27.06 , p = .04 ) . Substitution of  sedentary  time with sleep was associated with marginally faster reaction time on mixed-repeated task-switching blocks ( B = −12.20 , p = .07 ) and faster reaction time on mixed-switch blocks ( B = 17.21 , p = .05 ) , as well as reduced global reaction time switch cost ( B = −16.86 , p = .01 ) . Substitution for light intensity physical activity did not produce significant effects . By replacing sedentary time with sleep and MVPA , individuals may bolster several important domains of self-regulatory behavior and executive functioning . This has important implication s for the design of long-lasting health behavior interventions . Trial Registration clinical trials.gov identifier NCT00438347 AIMS The importance of reducing sedentary time is increasingly being recognized in the prevention of diabetes and cardiovascular disease . Despite this , the prospect i ve association between sedentary time and physical activity with insulin sensitivity and cardiometabolic risk factors has been little studied . METHODS In an analysis of data from the European RISC study , sedentary time and time spent in activity of moderate or vigorous intensity were assessed by accelerometry at baseline in 313 men and 414 women , aged 30 - 60 years , with insulin sensitivity as measured by euglycaemic-hyperinsulinaemic clamp . Three years later , cardiometabolic risk factors ( anthropometry , glucose , insulin , lipids ) were available for 549 participants . RESULTS In cross-sectional analyses using baseline data , after adjusting for age , gender , recruitment centre and time spent in activity of moderate or vigorous intensity , significant unfavourable associations were observed between higher sedentary time with body weight , HDL cholesterol , triglycerides , clamp-measured insulin sensitivity and insulin secretion ( all P(trend)<0.002 ) .  Sedentary time  remained significantly associated with insulin secretion after adjusting for insulin sensitivity ( P(trend)=0.02 ) . In longitudinal analyses , higher baseline sedentary time  was associated with 3-year increases in fasting glucose , fasting insulin and the HOMA insulin-resistance index score for the 50 % of the study population who increased their BMI by at least 0.3 kg/m(2 ) ( all P(trend)<0.01 ) ; these relationships remained significant after adjusting for time spent in activity of moderate or vigorous intensity . The 3-year increase in insulin secretion was lower in those spending more time doing activity of moderate or vigorous intensity ( P(trend)=0.03 ) . CONCLUSION These prospect i ve data suggest that less sedentary behaviour may partly counteract some of the negative effects of increasing body weight on glucose-insulin homoeostasis Objective . To evaluate the relationship of physical activity ( PA ) and sedentary behaviour with  gestational weight gain ( GWG ) and birth weight . Design . Combined data from two prospect i ve studies : ( 1 ) nulliparous pregnant women without BMI restrictions and ( 2 ) overweight and obese pregnant women at risk for gestational diabetes . Methods . Daily PA and sedentary behaviour were measured with an accelerometer around 15 and at 32–35 weeks of gestation . The association between time spent in moderate-to-vigorous PA ( MVPA ) and in  sedentary activities  with GWG and birth weight was determined . Main outcome measures were GWG between 15 and 32 weeks of gestation , average GWG per week , and birth weight . Results . We studied 111 women . Early in pregnancy , 32 % of women spent ≥30 minutes/day in at least moderate PA versus 12 % in late pregnancy . No significant associations were found between time spent in MVPA or sedentary behaviour with GWG or birth weight . Conclusions . We found no relation  between MVPA and sedentary behaviour with GWG or birth weight . The small percentage of women meeting the recommended levels of PA indicates the need to inform and support pregnant women to maintain regular PA , as there seems to be no adverse effect on birth weight and maintaining PA increases overall health Background  Physical therapists ( PTs ) work in a variety of healthcare setting s with varied levels of physical activity dem and s placed on them . The purpose of this study is to compare the  physical activity ( PA ) levels between PTs in inpatient versus outpatient environments for one work week using a cross-sectional design . Methods Sixty-one PTs ( 30 inpatient , 31 outpatient ) wore a tri-axial accelerometer and inclinometer for one work-week . The number steps-per-day , PA intensities , energy expenditures and postural positions adopted during the work day were recorded . ResultS ignificantly longer amounts of time spent sitting was found for inpatient PTs regardless of the significantly higher number of steps-per-day . Outpatient PTs had a higher number of breaks from sedentary activity with those breaks being longer than the inpatient PTs . The percentage of time spent performing moderate-vigorous PA approached significance implying more time was spent performing these types of activities for outpatient PTs . The energy expenditures between the two groups of PTs were not different . Conclusion This study compared the differences in physical activity levels between physical therapists who worked at inpatient versus outpatient environment as little is known about their activity levels . Inpatient physical therapists took more steps per day than outpatient physical therapists but the outpatient physical therapists were less sedentary and took more frequent and longer breaks from sedentary activities . The energy expenditures were similar between both types of therapists and this may be reflective of the gender and bodyweight differences between the groups that equalizes the energy expenditures . The findings of this study suggests that there are differences in the physical activity dem and s between inpatient and outpatient physical therapists . The results of this study may serve dual purpose s : ( 1 ) employers may be able to more accurately describe the expected physical activity dem and s to future employees ; ( 2 ) individuals tasked with preparing PTs to physically manage their work environment can outline training programs that are diverse based on the specific work environment of PTs OBJECTIVE Low levels of physical activity appear to be associated with insulin resistance . However , the detailed associations of these complex relationships remain elusive . We examined the prospect i ve associations between self-reported TV viewing time , objective ly measured time spent sedentary , at light-intensity activity , and at moderate- and vigorous-intensity physical activity ( MVPA ) with insulin resistance . RESEARCH DESIGN AND METHODS In 192 individuals ( 81 men and 111 women ) with a family history of type 2 diabetes , we measured  physical activity and anthropometric and metabolic variables at baseline and after 1 year of follow-up in the ProActive UK trial . Physical activity  was measured objective ly by accelerometry . Insulin resistance was expressed as fasting insulin and the homeostasis model assessment score ( HOMA-IR ) . RESULTS Baseline MVPA was a significant predictor of fasting insulin at follow-up ( β = −0.004 [ 95 % CI −0.007 to −0.0001 ] , P = 0.022 ) , and the association approached significance for HOMA-IR ( β = −0.003 [ −0.007 to 0.000002 ] , P = 0.052 ) , independent of time spent sedentary , at light-intensity activity , sex , age , smoking status , waist circumference , and self-reported TV viewing . Time spent sedentary and at light-intensity activity were not significantly associated with insulin resistance . The change in MVPA between baseline and follow-up was inversely related to fasting insulin ( β = −0.003 [ −0.007 to −0.0003 ] , P = 0.032 ) and the HOMA-IR score ( β = −0.004 [ −0.008 to −0.001 ] , P = 0.015 ) at follow-up , after adjustment for baseline phenotype in addition to the same confounders as above . CONCLUSIONS These results highlight the importance of promoting moderate-intensity activity such as brisk walking for improving insulin sensitivity and possibly other metabolic risk factors to prevent type 2 diabetes INTRODUCTION Replacing sedentary behaviour with light intensity physical activity ( ie , activities classified as less than three metabolic equivalents , such as slow-paced walking ) may be a more realistic strategy for reducing cardiometabolic risk in people with chronic obstructive pulmonary disease than only aim ing to increase levels of moderate-vigorous intensity physical activity . Behaviour change interventions to reduce sedentary behaviour in people with chronic obstructive pulmonary disease have not yet been developed or tested . RESEARCH QUESTIONS Is a 6-week behaviour change intervention effective and feasible in reducing sedentary time in people with chronic obstructive pulmonary disease ? DESIGN This study will be a multi-centre , r and omised , controlled trial with concealed allocation , assessor blinding , and intention-to-treat analysis , comparing a 6-week behaviour change intervention aim ed at reducing sedentary time with a sham intervention in people with chronic obstructive pulmonary disease . PARTICIPANTS AND SETTING Seventy participants will be recruited from the waiting lists for pulmonary rehabilitation programs at Royal Prince Alfred Hospital and Prince of Wales Hospital , Sydney , Australia . INTERVENTION The behaviour change intervention aims to reduce sedentary time through a process of guided goal setting with participants to achieve two target behaviours : ( 1 ) replace sitting and lying down with light-intensity physical activity where possible , and ( 2 ) st and up and move for 2minutes after 30minutes of continuous sedentary time . Three face-to-face sessions and three phone sessions will be held with a physiotherapist over the 6-week intervention period . The ' capability ' , ' opportunity ' , ' motivation ' and ' behaviour ' ( COM-B ) model will be applied to each participant to determine which components of behaviour ( capability , opportunity or motivation ) need to change in order to reduce sedentary time . Based on this ' behavioural diagnosis ' , the Behaviour Change Wheel will be used to systematic ally select appropriate behaviour change techniques to assist participants in achieving their weekly goals . Behaviour change techniques will include providing information about the health consequences of sedentary behaviour , self-monitoring and review of weekly goals , problem-solving of barriers to achieving weekly goals , and providing feedback on sedentary time using the Jawbone UP3 activity monitor . CONTROL The sham intervention will consist of weekly phone calls for 6 weeks , to enquire whether the participants ' health status has changed over the intervention period ( eg , hospitalised for an acute exacerbation ) . No instructions regarding physical activity or exercise will be given . MEASUREMENTS Outcomes will be assessed at baseline , at the end of the 6-week intervention period , and at the 3-month follow-up . Primary outcome measures will be : ( 1 ) total sedentary time , including the pattern of accumulation of sedentary time , assessed by the activPAL3 activity monitor , and ( 2 ) feasibility of the intervention assessed by uptake and retention of participants , participant compliance , self-reported achievement of weekly goals , and adverse events . Secondary outcome measures will include functional exercise capacity , health-related quality of life , domain-specific and behaviour-specific sedentary time , patient activation , and anxiety and depression .  Semi-structured interviews will be conducted with participants who receive the behaviour change intervention to explore acceptability and satisfaction with the different components of the intervention . ANALYSIS Analysis of covariance ( ANCOVA ) will be used to calculate between-group comparisons of total sedentary time and the number of bouts of sedentary time>30minutes after adjusting baseline values . Uncertainty about the size of the mean between-group differences will be quantified with 95 % CI . Within-group comparisons will be examined using paired t-tests and described as mean differences with 95 % CIs . Secondary outcome measures will be analysed similarly . The feasibility measures will be analysed descriptively . Semi-structured interviews will be conducted until data saturation is achieved and there are no new emerging themes . De-identified interview transcripts will be coded independently by two research ers and analysed alongside data collection using the COM-B model as a thematic framework . DISCUSSION / SIGNIFICANCE If behaviour change interventions are found to be an effective and feasible method for reducing sedentary time , such interventions may be used to reduce cardiometabolic risk in people with chronic obstructive pulmonary disease . An approach that emphasises participation in light-intensity physical activity may increase the confidence and willingness of people with chronic obstructive pulmonary disease to engage in more intense physical activity , and may serve as an intermediate goal to increase uptake of pulmonary rehabilitation Background Physical activity levels among preschoolers in childcare are low and sedentary time high . The Supporting Physical Activity in the Childcare Environment ( SPACE ) intervention had three components : 1 . portable play equipment ; 2 . staff training ; and , 3 . modified outdoor playtime ( i.e. , shorter , more frequent periods ) . This study aim ed to examine the effectiveness of the SPACE intervention on preschoolers ’ physical activity levels and sedentary time during childcare hours ( compared to st and ard care ) . Methods Via a single-blind cluster r and omized controlled trial , 338 preschoolers ( 39.86 ± 7.33 months ; 52 % boys ) from 22 centre-based childcare facilities ( 11 experimental , 11 control ) were enrolled . Preschoolers wore an Actical ™ accelerometer for 5 days during childcare hours at baseline , post-intervention , and 6- and 12-month follow-up , and were included in the analyses if they had a minimum of two valid days ( 5 h each day ) at baseline and one additional time point . Intervention effectiveness was tested using a linear mixed effects model for each of the four outcome variables ( i.e. , sedentary time , light physical activity [ LPA ] , moderate-to-vigorous physical activity [ MVPA ] , and total physical activity [ TPA ] ) . Fixed effects were further evaluated with t-tests , for which degrees of freedom were estimated using a Satterthwaite approximation . Results One hundred and ninety-five preschoolers were retained for analyses .  The intervention did not significantly impact LPA . MVPA was significantly greater among children in the experimental group when comparing post-intervention to pre-intervention , t(318 ) = 3.50 , p = .0005 , but no intervention effects were evident at 6- or 12-month follow-up . TPA was significantly greater for children in the intervention group at post-intervention when compared to pre-intervention , t(321 ) = 2.70 , p = .007 , with no intervention effects evident at later time periods . Finally , sedentary time was significantly lower among preschoolers in the experimental group when comparing post-intervention to pre-intervention , t(322 ) = 2.63 , p = .009 , with no significant effects at follow-up . Conclusions The SPACE intervention was effective at increasing MVPA and TPA among preschoolers , while simultaneously decreasing sedentary time . The ability of the SPACE intervention to target higher intensity activity is promising , as MVPA levels have been documented to be low in centre-based childcare . The changes in physical activity were not sustained long term ( 6- or 12-month follow-up).Trial registration IS RCT N70604107 ( October 8 , 2014 ) OBJECTIVE Playground interventions offer an opportunity to enhance school recess physical activity . We aim ed to assess the effects of playground marking on objective ly measured school recess physical activity in French children . METHODS Participants were four hundred and twenty children ( 6 - 11years old ) from 4 primary schools in Nord-Pas de Calais , France . Children 's physical activity ( PA ) was measured with a uniaxial accelerometer twice a day ( morning and afternoon recess ) during a 4-day school week in April and May 2009 . Two experimental schools ( EG ) received a recess-based intervention ( playground markings ) and two others served as controls ( CG ) . Percentage of time spent on the following intensities of physical activity during school recess was measured before and after intervention : sedentary ( SED ) , light physical activity ( LPA ) , moderate physical activity ( MPA ) , vigorous physical activity ( VPA ) , very high physical activity ( VHPA ) and moderate-to-vigorous physical activity ( MVPA ) . RESULTS At baseline , school recess PA among children from CG was significantly ( p<0.001 ) higher than that among EG children . No interaction was observed between the recess-based intervention and gender . After the intervention , the EG spent significantly ( p<0.05 ) more time in MPA , VPA and MVPA with a concomitant significant decrease in SED ( p<0.05 ) compared to baseline , while the PA in CG remained unchanged . CONCLUSION Painted playground markings had a positive short-term effect on school recess physical activity levels BACKGROUND Previous research demonstrates that participation in light-intensity physical activity ( LIPA ) and moderate-to-vigorous physical activity ( MVPA ) are favorably associated with health-related quality of life ( HRQOL ) . Emerging work demonstrates that  sedentary behavior  ( SB ) is detrimentally associated with various cardiometabolic biomarkers , with few studies exploring the association of SB on HRQOL , and no studies examining this among congestive heart failure patients . Therefore , the purpose of this study was to examine the potential independent associations of SB on HRQOL among congestive heart failure patients . METHODS Data from the 2003 - 2006 National Health and Nutrition Examination Survey were used .  Physical activity was assessed over 7days during all waking hours using the ActiGraph 7164 accelerometer .  HRQOL was assessed using the Centers for Disease Control HRQOL index survey . RESULTS 190 participants self-reported a physician-diagnosis of congestive heart failure . After adjustments , SB behavior ( 1-min/day increase ) was associated with worse HRQOL ( β=0.004 ; 95 % CI : 0.0004 - 0.007 ; P=0.03 ) . When MVPA was added as a covariate to this model , SB remained significantly associated with worse HRQOL ( β=0.003 ; 95 % CI : 0.0001 - 0.007 ; P=0.04 ) . However , when adding LIPA to this model that also included MVPA as a covariate , SB was no longer associated with HRQOL ( β=0.0001 ; 95 % CI : -0.003 - 0.004 ; P=0.92 ) . CONCLUSIONS If confirmed by prospect ive/experimental work , this suggests that SB may not have detrimental HRQOL effects among congestive heart failure patients Background Programs to change health behaviours have been identified as one way to reduce health inequalities experienced by disadvantaged groups . The objective of this study was to examine the effectiveness of a behaviour change programme to increase walking and reduce sedentary behaviour of adults with intellectual disabilities . Methods We used a cluster r and omised controlled design and recruited participants over 18 years old and not regularly involved in physical activity from intellectual disabilities community-based organisations . Assessment s were carried out blind to allocation . Clusters of participants were r and omly allocated to the Walk Well program or a 12-week waiting list control . Walk Well consisted of three face-to-face physical activity consultations incorporating behaviour change techniques , written re sources for participants and carers , and an individualised , structured walking programme . The primary outcome measured with accelerometers was change in mean step count per day between baseline and 12 weeks . Secondary outcomes included percentage time per day sedentary and in moderate-vigorous physical activity ( MVPA ) , body mass index ( BMI ) , and subjective well being . Results One hundred two participants in 50 clusters were r and omised . 82 ( 80.4 % ) participants completed the primary outcome . 66.7 % of participants lived in the most deprived quintile on the Scottish Index of Multiple Deprivation . At baseline , participants walked 4780 ( st and ard deviation 2432 ) steps per day , spent 65.5 % ( st and ard deviation 10.9 ) of time sedentary and 59 % percent had a body mass in the obesity range . After the walking programme , the difference between mean counts of the Walk Well and control group was 69.5 steps per day [ 95 % confidence interval ( CI ) -1054 to 1193.3 ] . There were no significant between group differences in percentage time sedentary 1.6 % ( 95 % CI −2.984 to 6.102 ) , percentage time in MVPA 0.3 % ( 95 % CI −0.7 to 1.3 ) , BMI −0.2 kg/m2 ( 95 % CI −0.8 to 0.4 ) or subjective well-being 0.3 ( 95 % CI −0.9 to 1.5 ) . Conclusions This is the first published trial of a walking program for adults with intellectual disabilities . Positively changing physical activity and sedentary behaviours may require more intensive programmes or upstream approaches to address the multiple social disadvantages experienced by adults with intellectual disabilities . Since participants spent the majority of their time sedentary , home-based programmes to reduce sitting time may be a viable health improvement approach . Trial registration Current Controlled Trials IS RCT BACKGROUND Moderate-to-vigorous-intensity physical activity is recommended to maintain and improve health , but the mortality benefits of light activity and risk for sedentary time remain uncertain . OBJECTIVES Using accelerometer-based measures , we 1 ) described the mortality dose-response for sedentary time and light- and moderate-to-vigorous-intensity activity using restricted cubic splines , and 2 ) estimated the mortality benefits associated with replacing sedentary time with physical activity , accounting for total activity . DESIGN US adults ( n = 4840 ) from NHANES ( 2003 - 2006 ) wore an accelerometer for ≤7 d and were followed prospect ively for mortality . Proportional hazards models were used to estimate adjusted HRs and 95 % CIs for mortality associations with time spent sedentary and in light- and moderate-to-vigorous-intensity physical activity . Splines were used to graphically present behavior-mortality relation . Isotemporal models estimated replacement associations for sedentary time , and separate models were fit for low- ( < 5.8 h total activity/d ) and high-active participants to account for nonlinear associations . RESULTS Over a mean of 6.6 y , 700 deaths occurred . Compared with less-sedentary adults ( 6 sedentary h/d ) , those who spent 10 sedentary h/d had 29 % greater risk ( HR : 1.29 ; 95 % CI : 1.1 , 1.5 ) . Compared with those who did less light activity ( 3 h/d ) , those who did 5 h of light activity/d had 23 % lower risk ( HR : 0.77 ; 95 % CI : 0.6 , 1.0 ) . There was no association with mortality for sedentary time or light or moderate-to-vigorous activity in highly active adults . In less-active adults , replacing 1 h of sedentary time with either light- or moderate-to-vigorous-intensity activity was associated with 18 % and 42 % lower mortality , respectively . CONCLUSIONS Health promotion efforts for physical activity have mostly focused on moderate-to-vigorous activity . However , our findings derived from accelerometer-based measurements suggest that increasing light-intensity activity and reducing sedentary time are also important , particularly for inactive adults Compliance with physical activity ( PA ) recommendations was assessed using objective PA monitoring of ambulatory activity , in two healthy groups of individuals with active and sedentary occupations . The study showed generally low compliance with the guidelines ( 53 % with 10,000 steps a day ; 10 % with 30 min of moderate activity a day ; and 1 % with 30 min of moderate activity a day in bouts of at least 10 min ( ACSM ) ) . Adherence to guidelines decreased as more rigorous conditions were applied to the PA data . Use of an objective monitor revealed that health enhancing bouts of activity were performed in periods of approximately 1-min duration , which may be due to unavoidable environmental interruptions . These bouts of activity are much shorter than those advocated in the ACSM guidelines , raising questions regarding how actual behaviour , based on objective monitoring , can be reconciled with guidelines based on self-reported PA OBJECTIVES Rural Australian adults are consistently identified as insufficiently active , likely due to challenges implementing community-based physical activity programs in rural setting s. On-line strategies to promote physical activity may be particularly effective in rural setting s where isolation and scarcity of qualified support are potential barriers . The Rural Environments and Community Health ( REACH ) study evaluated the effectiveness of an online-delivered walking intervention among South Australian rural adults . DESIGN R and omised controlled study design . METHODS A twelve-week intervention , with six- and twelve-month follow-up , was conducted . Participants ( n=171 ; 50.6±12.5years ) , recruited through flyers , local newspapers and radio , were r and omised  to comparison or intervention groups  and received a pedometer . The intervention group received access to the REACH website and personalised step goals based on ratings of perceived exertion and daily affect . The comparison group received a paper diary and generic step goals . Outcome measures were accelerometry-assessed sedentary , light ( LPA ) and moderate-to-vigorous ( MVPA ) physical activity . Linear mixed models assessed changes over the intervention and follow-ups . RESULTS Sedentary time decreased , and LPA and MVPA increased in both groups across the intervention ( p<0.05 ) . The intervention group demonstrated a larger increase in LPA at six-month follow-up relative to comparison ( p<0.05 ) . Both groups decreased sedentary time , overall and in bouts ≥30min , between baseline and twelve-month follow-up ( p<0.05 ) . From baseline to twelve-month follow-up , MVPA ( total min and bouts ≥10min ) declined more in the comparison group than the intervention group ( p<0.05 ) . CONCLUSION While increased physical activity and decreased sedentary time were observed in both groups during the intervention period , maintenance was only observed for LPA at six-month follow-up in the intervention group . By twelve-month follow-up , post-intervention improvements had largely disappeared , suggesting that additional research is needed to identify ways to improve long-term adherence OBJECTIVES The risk of metabolic and cardiovascular disease may be reduced by a healthy pattern of daily physical activity . We investigated the feasibility and preliminary effectiveness of advice-based interventions aim ing at either increasing  moderate-to-vigorous intensity physical activity ( MVPA ) or reducing sedentary time ( ST ) in obese volunteers . DESIGN R and omized non-blinded two-armed trial . METHOD Inactive , obese adults were r and omly assigned to reduce sedentary behavior ( SitLess ) ( n=30 ) or increase MVPA ( ExMore ) ( n=29 ) for 4 weeks . Participants wore ActivPAL ( AP ) and ActiGraph ( AG ) devices for 7 consecutive days at baseline and during the final week of the intervention period . Cardiometabolic risk factors ( waist circumference , BMI , percent body fat , blood pressure , VO2max and blood markers ) were measured at baseline and at follow-up . Trial was set in Midtjyll and Denmark from 2012 to 2014 . RESULTS The interventions were completed by 77 % ( SitLess ) and 69 % ( ExMore ) of the participants . The SitLess group reduced sedentary time by 53min/day ( 95 % CI 10 ; 96 ; P<0.05 ) while ExMore increased MVPA by 16min/day ( 95 % CI 5 ; 27 ; P<0.05 ) . SitLess and ExMore both improved VO2max by 8 % and 11 % , respectively ( P<0.05 ) . None of the other measured cardiometabolic risk factors changed over the 4 weeks of intervention . CONCLUSIONS This trial showed that completion of 4-week , advice-based interventions led to reduced ST or increased MVPA  in obese adults . Furthermore , both interventions led to small significant increases in VO2max . Studies of longer duration are needed to determine if these behavioral changes can be maintained , and to quantify possible longterm effects of reduced ST or increased MVPA on cardiometabolic risk factors Purpose Imprecise measurement of physical activity variables might attenuate estimates of the beneficial effects of activity on health-related outcomes . We aim ed to compare the cardiometabolic risk factor dose-response relationships for physical activity and sedentary behaviour between accelerometer- and question naire-based activity measures . Methods  Physical activity and sedentary behaviour  were assessed in 317 adults by 7-day accelerometry and International Physical Activity Question naire ( IPAQ ) . Fasting blood was taken to determine insulin , glucose , triglyceride and total , LDL and HDL cholesterol concentrations and homeostasis model-estimated insulin resistance ( HOMAIR ) . Waist circumference , BMI , body fat percentage and blood pressure were also measured . Results For both accelerometer-derived sedentary time ( < 100 counts.min−1 ) and IPAQ-reported sitting time significant positive ( negative for HDL cholesterol ) relationships were observed with all measured risk factors – i.e. increased sedentary behaviour was associated with increased risk ( all p≤0.01 ) . However , for HOMAIR and insulin the regression coefficients were > 50 % lower for the IPAQ-reported compared to the accelerometer-derived measure ( p<0.0001 for both interactions ) . The relationships for moderate-to-vigorous physical activity ( MVPA ) and risk factors were less strong than those observed for sedentary behaviours , but significant negative relationships were observed for both accelerometer and IPAQ MVPA measures with glucose , and insulin and HOMAIR values ( all p<0.05 ) . For accelerometer-derived MVPA only , additional negative relationships were seen with triglyceride , total cholesterol and LDL cholesterol concentrations , BMI , waist circumference and percentage body fat , and a positive relationship was evident with HDL cholesterol ( p = 0.0002 ) . Regression coefficients for HOMAIR , insulin and triglyceride were 43–50 % lower for the IPAQ-reported compared to the accelerometer-derived MVPA measure ( all p≤0.01 ) . Conclusion Using the IPAQ to determine sitting time and MVPA reveals some , but not all , relationships between these activity measures and metabolic and vascular disease risk factors . Using this self-report method to quantify activity can therefore underestimate the strength of some relationships with risk factors Background People with chronic obstructive pulmonary disease lead sedentary lives and could benefit from increasing their physical activity . The purpose of this study was to determine if an exercise-specific self-efficacy enhancing intervention could increase physical activity and functional performance when delivered in the context of 4 months of upper body resistance training with a 12-month follow-up . Methods In this r and omized controlled trial , subjects were assigned to : exercise-specific self-efficacy enhancing intervention with upper body resistance training ( SE-UBR ) , health education with upper body resistance training ( ED-UBR ) , or health education with gentle chair exercises ( ED-Chair ) . Physical activity was measured with an accelerometer and functional performance was measured with the Functional Performance Inventory . Forty-nine people with moderate to severe chronic obstructive pulmonary disease completed 4 months of training and provided valid accelerometry data , and 34 also provided accelerometry data at 12 months of follow-up . The self-efficacy enhancing intervention emphasized meeting physical activity guidelines and increasing moderate-to-vigorous physical activity . Results Differences were observed in light physical activity ( LPA ) after 4 months of training , time by group interaction effect ( P=0.045 ) . The SE-UBR group increased time spent in LPA by + 20.68±29.30 minutes/day and the other groups decreased time spent in LPA by −22.43±47.88 minutes/day and -25.73±51.76 minutes/day . Changes in LPA were not sustained at 12-month follow-up . There were no significant changes in moderate-to-vigorous physical activity , sedentary time , or functional performance . Subjects spent most of their waking hours sedentary : 72%±9 % for SE-UBR , 68%±10 % for ED-UBR , and 74%±9 % for ED-Chair . Conclusion The self-efficacy enhancing intervention produced a modest short-term increase in LPA . Further work is needed to increase the magnitude and duration of effect , possibly by targeting LPA PURPOSE AND METHODS Although evidence is accumulating that sedentary behavior ( SB ) , independent of moderate-to-vigorous intensity physical activity ( MVPA ) , is associated with cardiometabolic and aging outcomes in adults , several gaps present opportunities for future research . This article reports on the " Research Evidence on Sedentary Behavior " session of the Sedentary Behavior : Identifying Research Priorities workshop , sponsored by the National Heart , Lung , and Blood Institute and the National Institute on Aging , which aim ed to identify priorities in SB research . RESULTS AND CONCLUSIONS A consensus definition of SB has not yet been established , although agreement exists that SB is not simply all behaviors other than MVPA . The two most common definitions are as follows : one based solely on intensity ( < 1.5 metabolic equivalents [ METs ] ) and another which combines low intensity ( ≤1.5 METs ) with a seated or reclining posture . Thus , for the definition of SB , evaluation of whether or not to include a postural component is a research priority . SB assessment method ologies include self-report and objective measurement , each offering distinct information . Therefore , evaluation , st and ardization , and comparison across self-report and objective assessment methods are needed . Specific priorities include the development and validation of novel devices capable of assessing posture and st and ardization of research practice s for SB assessment by accelerometry . The prospect i ve evidence that SB relates to health outcomes is limited in that SB is almost exclusively measured by self-report . The lack of longitudinal studies with objective ly measured SB was recognized as a major research gap , making examination of the association between objective ly measured SB and adverse health outcomes in longitudinal studies a research priority . Specifically , studies with repeated measures of SB , evaluating dose-response relationships , with inclusion of more diverse population s are needed OBJECTIVES To investigate the associations of objective ly assessed sedentary time , light intensity physical activity ( PA ) , moderate to vigorous intensity PA ( MVPA ) , and total PA with all-cause mortality and mortality from cardiovascular disease ( CVD ) or cancer in a Swedish population -based cohort with 15 years follow-up time . DESIGN Longitudinal prospect i ve cohort study . METHODS Data from 851 persons ( 56 % women ) ≥35 years at baseline were included . Primary exposure variables were  time ( min/day ) spent sedentary , in light intensity PA and in MVPA , and total counts from an Actigraph 7164 accelerometer . Data on all-cause mortality and mortality from CVD or cancer were obtained from Swedish registers . Cox proportional hazards models estimated hazard ratios ( HR ) of mortality with 95 % confidence intervals ( CI ) . RESULTS Compared with the least sedentary participants , those in the most sedentary tertile had an increased risk of all-cause mortality , HR : 2.7 ( 1.4 , 5.3 ) , CVD mortality , HR : 5.5 ( 1.4 , 21.2 ) and cancer mortality , HR : 4.3 ( 1.2 , 16.0 ) . For all-cause mortality , those in the highest light intensity PA tertile had a HR 0.34 ( 0.17 , 0.67 ) compared with the lowest tertile . A similar pattern was found for CVD and cancer mortality . More time spent in MVPA was associated with the largest risk reduction for CVD mortality , with an almost 90 % lower risk in the tertile with the most time in MVPA . CONCLUSIONS This study confirms a strong inverse relationship between MVPA and mortality , and adds new insight for the underst and ing of the associations between sedentary time  and light intensity PA  and mortality OBJECTIVE To describe the patterns ( specifically comparing weekdays and weekends classified by intensities ) of  physical activity ( PA ) measured by accelerometry in adolescent girls . RESEARCH METHODS AND PROCEDURES Healthy sixth grade girls ( n=1603 ) , 11 to 12 years old , were r and omly recruited from 36 schools participating in the Trial of Activity in Adolescent Girls . Age , ethnicity , socioeconomic status , weight , and height were taken .  PA patterns were measured for 6 days using accelerometry . RESULTS Adolescent girls spend most of their time in  sedentary  ( 52 % to 57 % of the day ) and  light activity ( 40 % to 45 % of the day ) on weekdays and weekends . In all girls , total PA  comprised 44.5 % of the day ( 41.7 % light , 2.2 % moderate , and 0.7 % vigorous ) with sedentary activity comprising 55.4 % .  Moderate-to-vigorous PA ( MVPA )  was higher ( p<0.001 ) on weekdays than weekends in all girls , but  MVPA  was lower in at-risk of overweight+overweight girls ( p<0.001 ) on both weekdays and weekends compared with normal-weight girls . DISCUSSION Adolescent girls are more active at moderate and vigorous intensities on weekdays than on weekends , and at-risk of overweight and those overweight spend less time engaging in  MVPA  than normal-weight girls The aim of this study was to investigate the impact of a physical activity (PA)-focused behavioural intervention during and after  pulmonary rehabilitation ( PR ) on PA levels ( primary aim ) , health-related outcomes and self-efficacy ( secondary aims ) of patients with COPD . Thirty-two patients were r and omly assigned to an experimental group ( EG ) or control group ( CG ) . The EG received a PA-focused behavioural intervention during PR ( 3 months ) and follow-up support ( 3 months ) . The CG received PR ( 3 months ) . Daily PA was collected : number of steps ; time spent in moderate-to-vigorous PA ( MVPA ) , total PA and sedentary activities ( SA ) . Secondary outcomes comprised exercise capacity , muscle strength , health-related quality of life ( HRQOL ) and self-efficacy . Measures were collected at baseline , 3 and 6 months . Compared with the CG , the EG improved the number of steps ( p = 0.006 ) and time spent in MVPA ( p = 0.007 ) , total PA ( p = 0.014 ) and SA ( p = 0.018 ) at 3 months . Differences were maintained after follow-up support ( 0.025 ≤ p ≤ 0.040 ) , except for SA ( p = 0.781 ) . Exercise capacity , muscle strength and HRQOL were increased at 3 and 6 months ( p ≤ 0.002 ) with no between-group differences ( 0.148 ≤ p ≤ 0.987 ) . No changes were observed in self-efficacy ( p = 0.899 ) . A PA-focused behavioural intervention during and after PR may improve patients ' PA levels . Further research is warranted to assess the sustainability of the findings Background The construct of total wellness includes a holistic approach to the body , mind and spirit components of life . While the health benefits of reducing sedentary behavior and increasing physical activity are well documented , little is known about the influence on total wellness of an internet-based physical activity monitor design ed to help people to achieve higher physical activity levels . Purpose The purpose of this four-week , personal activity monitor-based intervention program was to reduce sedentary behavior and increase physical activity levels in daily living for sedentary adults and to determine if these changes would also be associated with improvement in total wellness . Methods Twenty-two men and 11 women ( 27 years ± 4.0 ) were r and omly assigned to either an intervention ( n = 18 ) or control group ( n = 15 ) . The intervention group interacted with an online personal activity monitor ( Gruve Solution ™ ) design ed to reduce sedentary time  and increase physical activity during activities of daily living . The control group did not interact with the monitor , as they were asked to follow their normal daily physical activities and sedentary behavior routines . The Wellness Evaluation of Lifestyle ( WEL ) inventory was used to assess total wellness . Sedentary time , light , walking , moderate and vigorous intensity physical activities were assessed for both intervention and control groups at baseline and at week-4 by the 7-day Sedentary and Light Intensity Physical Activity Log ( 7-day SLIPA Log ) and the International Physical Activity Question naire ( IPAQ ) . Results Significant increases in pre-post total wellness scores ( from 64 % ± 5.7 to 75 % ± 8.5 ) ( t ( 17 ) = -6.5 , p < 0.001 ) were observed in the intervention group by the end of week four . Intervention participants decreased their sedentary time ( 21 % , 2.3 hours/day ) and increased their light ( 36.7 % , 2.5 hours/day ) , walking ( 65 % , 1057 MET-min/week ) , moderate ( 67 % , 455 MET-min/week ) and vigorous intensity ( 60 % , 442 MET-min/week ) physical activity ( all p < 0.001 ) . No significant differences for total wellness were observed between the groups at baseline and no pre-post significant differences were observed for any outcome variable in the control group . Conclusion Total wellness is improved when sedentary , but sufficiently physically active adults , reduce sedentary time and increase physical activity levels ( i.e. light , waking , moderate and vigorous ) Locational data , logged on portable GPS units and matched with accelerometer data , was used to examine associations of the built environment with physical activity and  sedentary behaviors of adolescent females . In a sample of 293 adolescent females aged 15 to 18 years old in Minneapolis and San Diego , the built environment around each GPS point and its corresponding sedentary , light , and moderate-to-vigorous intensity physical activity was examined using r and om intercept multinomial logistic regression models . The odds of higher physical activity intensity ( 3-level outcome : sedentary , light , MVPA ) were higher in places with parks , schools , and high population density , during weekdays , and lower in places with more roads and food outlets . Underst and ing the places where physical activity and sedentary behaviors occur appears to be a promising strategy to clarify relationships and inform policy aim ed at increasing physical activity and reducing sedentary behaviors
Office and call center workers ’ steps/day were among the lowest , while those of postal delivery workers were highest .
Office workers had the greatest ST and the lowest time in LPA both at work and during wakeful time .
Laborers had the lowest ST and spent a significantly greater proportion of their work time in LPA and MVPA .
Healthcare and protective services workers had higher levels of LPA at work compared to other occupations .
Workers in driving-based occupations tended to have a higher body mass index and blood pressure .
Conclusion This review identifies that occupational and wakeful time PA and ST differed between occupations .
Background With approximately 8 hours of one ’s waking day spent at work , occupational tasks and environments are important influencers on an individual ’s physical activity ( PA ) and sedentary behaviours .
Little research has compared device-measured physical activity , sedentary behaviour and cardiometabolic outcomes between occupational groups .
Objective To compare device-measured movement ( sedentary time [ ST ] , light intensity  physical activity [ LPA ] , moderate-to-vigorous intensity physical activity [ MVPA ] , and steps ) across occupations .
The secondary objective was to examine whether cardiometabolic and fitness outcomes differed by occupation .