Effect of job rotation on need for recovery, musculoskeletal complaints, and sick leave due to musculoskeletal complaints: a prospective study among refuse collectors. Clinical effectiveness of manual therapy for the management of musculoskeletal and non-musculoskeletal conditions: systematic review and update of UK evidence report Comparisons of Musculoskeletal Complaints and Data Entry Between a Sitting and a Sit-Stand Workstation Paradigm Musculoskeletal disorders and occupational exposures: How should we judge the evidence concerning the causal association? Work Related Risk Factors for Neck, Shoulder and Arms Complaints: A Cohort Study Among Dutch Computer Office Workers Are Work Disability Prevention Interventions Effective for the Management of Neck Pain or Upper Extremity Disorders? A Systematic Review by the Ontario Protocol for Traffic Injury Management (OPTIMa) Collaboration Menopausal symptoms and symptom clustering in Chinese women. The Effects of Office Ergonomic Training on Musculoskeletal Complaints, Sickness Absence, and Psychological Well-Being The burden and determinants of neck pain in workers: results of the Bone and Joint Decade 2000-2010 Task Force on Neck Pain and Its Associated Disorders.
BACKGROUND Job rotation might be an effective preventive measure to reduce the prevalence of musculoskeletal complaints , although its effect has not been yet established . The aim of the present study is to evaluate the effect of job rotation in refuse collecting on need for recovery , prevalence of musculoskeletal complaints , and sick leave due to musculoskeletal complaints .  METHODS A 1-year prospect i ve study among refuse collectors was performed , using st and ardized question naires . Job rotation was performed between collecting two-wheeled containers and driving a refuse truck . The experimental groups of rotating refuse collectors at t(0 ) and t(1 ) ( group R-R ) and non-rotating refuse collectors at t(0 ) and rotating refuse collectors at t(1 ) ( group NR-R ) were compared with a reference group of non-rotating refuse collectors at t(0 ) and t(1 ) ( group NR-NR ) . RESULTS The adjusted need for recovery of group R-R was marginally significantly lower than need for recovery of the reference group . Groups R-R and NR-R had a more than two times higher risk for complaints of the low back than the reference group . No other significant results were found . CONCLUSIONS Job rotation seemed to coincide with a reduced need for recovery and was associated with an increased risk of low back complaints . No effects were found on sick leave due to musculoskeletal complaints . The results might be influenced by the healthy worker selection effect in the reference group and its inverse in the rotating groups Background This systematic review up date d and extended the " UK evidence report " by Bronfort et al. ( Chiropr Osteopath 18:3 , 2010 ) with respect to conditions/ interventions that received an ' inconclusive ’ or ' negative ’ evidence rating or were not covered in the report . Methods A literature search of more than 10 general medical and specialised data bases was conducted in August 2011 and up date d in March 2013 . Systematic review s , primary comparative studies and qualitative studies of patients with musculoskeletal or non-musculoskeletal conditions treated with manual therapy and reporting clinical outcomes were included . Study quality was assessed using st and ardised instruments , studies were summarised , and the results were compared against the evidence ratings of Bronfort . These were either confirmed , up date d , or new categories not assessed by Bronfort were added . Results 25,539 records were found ; 178 new and additional studies were identified , of which 72 were systematic review s , 96 were r and omised controlled trials , and 10 were non-r and omised primary studies . Most ' inconclusive ’ or ' moderate ’ evidence ratings of the UK evidence report were confirmed . Evidence ratings changed in a positive direction from inconclusive to moderate evidence ratings in only three cases ( manipulation/mobilisation [ with exercise ] for rotator cuff disorder ; spinal mobilisation for cervicogenic headache ; and mobilisation for miscellaneous headache ) . In addition , evidence was identified on a large number of non-musculoskeletal conditions not previously considered ; most of this evidence was rated as inconclusive . Conclusions Overall , there was limited high quality evidence for the effectiveness of manual therapy . Most review ed evidence was of low to moderate quality and inconsistent due to substantial method ological and clinical diversity . Areas requiring further research are highlighted Background : Seated working positions are often regarded as a cause for discomfort in the musculoskeletal system . Performing work in different working positions — that is , alternating between sitting and st and ing ( sit-st and workstation paradigm)—could help reduce physical complaints . Objective : The questions were whether performing office work partly in a st and ing position leads to reduced complaints and whether st and ing would change the efficiency of data entry office work . Method : We investigated the effect of a sit-st and workstation paradigmd during experimental data entry office work on physical and psychological complaints and data entry efficiency by conducting a r and omized controlled trial with 60 male participants ages 18 to 35 years . Results : In this experiment , musculoskeletal complaints were reduced by a sit-st and workstation paradigm . A trend could be identified indicating a small but nonsignificant loss of efficiency in data entry while st and ing . Conclusion : A sit-st and workstation paradigm reduces musculoskeletal complaints without considerably affecting data entry efficiency under the presented study conditions ( young male participants , short duration , fixed and controlled sit-st and workstation paradigm , simulated experimental working condition ) . Application : According to the present data , implementing a sit-st and workstation paradigm can be an effective workplace health intervention to reduce musculoskeletal complaints . This experiment encourages further studies on the effectiveness of a sit-st and workstation paradigm . Experimental research and field studies that prove the reduction of complaints when introducing a sit-st and workstation paradigm in the workplace could be the basis for evidence -based recommendations regarding such interventions Musculoskeletal disorders ( MSDs ) affecting the back , upper and lower extremities are widespread in the general population , implying a variety of causal factors . Multiple causes are not mutually exclusive , and a high background rate does not preclude associations with specific factors that are uncommon in the general population . MSDs have well-documented associations with occupational ergonomic stressors such as repetitive motion , heavy lifting , non-neutral postures , and vibration . Organizational features of the work environment , such as time pressure and low decision latitude , may also play a role , at least by potentiating the effects of physical loading . Numerous systematic review s have mostly concurred with these overall findings . Nevertheless , some continue to debate whether MSDs are sometimes work-related , even for those performing jobs with repetitive and routinized tasks , heavy lifting , and /or pronounced postural strain . This article discusses ( 1 ) some epidemiologic features of MSDs that underlie that debate ; and ( 2 ) the question of what should appropriately be considered a gold st and ard for scientific evidence on an etiological question such as the health effects of a non-voluntary exposure , such as an occupational or environmental agent . In particular , r and omized clinical trials have little relevance for determining the health effects of non-therapeutic risk factors Introduction This study aims to investigate the relationship between work-related physical and psychosocial characteristics and complaints of the neck , shoulder and forearm/h and s. Methods Data were used from a prospect i ve Dutch cohort study among computer office workers with a follow-up period of 2 years . The study was conducted among 264 computer users . Physical and psychosocial risk factors were tested to predict the occurrence of neck , shoulder and forearm/h and s complaints . Bivariate and multivariable logistic regression was used to identify the association between risk factors and outcome variables . Results The 2 year follow-up prevalence rates with 95 % CI for neck complaints were 0.31 ( 0.28–0.37 ) , for shoulder complaints 0.33 ( 0.27–0.39 ) and for forearm/h and s complaints 0.21 ( 0.14–0.28 ) . Four main predictors for the occurrence of neck and shoulder complaints were identified : ( 1 ) Irregular head and body posture [ OR : 1.1 ( 1.0–1.2 ) P = 0.04 ] ; ( 2 ) task difficulty ( job dem and s ) [ OR : 1.2 ( 1.0–1.5 ) P = 0.01 ] ; ( 3 ) number of working hours/day with the computer [ OR : 1.20 ( 1.0–1.4 ) P = 0.03 ] ; and ( 4 ) having had a previous history of complaints [ OR : 7.2 ( 3.8–13.2 ) P = 0.01 ] . Two predictors were identified for forearm/h and s complaints : time pressure ( job dem and s ) [ OR : 1.20 ( 1.0–1.4 ) P = 0.03 ] and having had a previous history of complaints [ OR : 7.1 ( 3.5–14.1 ) P = 0.06 ] . Conclusion This longitudinal study suggests that risk factors of upper musculoskeletal complaints in computer workers consist of a mixture of physical and psychosocial characteristics Abstract Purpose We conducted a systematic review to critically appraise and synthesize literature on the effectiveness of work disability prevention ( WDP ) interventions in workers with neck pain , whiplash-associated disorders ( WAD ) , or upper extremity disorders . Methods We search ed electronic data bases from 1990 to 2012 . R and om pairs of independent review ers critically appraised eligible studies using the Scottish Intercollegiate Guidelines Network criteria . Scientifically admissible studies were summarized and synthesized following best- evidence synthesis methodology . Results Of the 6,359 articles retrieved , 16 r and omized controlled trials were eligible for critical appraisal and five were admissible . We found that a return-to-work coordination program ( including workplace-based work hardening ) was superior to clinic-based work hardening for persistent rotator cuff tendinitis . Workplace high-intensity strength training and workplace advice had similar outcomes for neck and shoulder pain . Mensendieck/Cesar postural exercises and strength and fitness exercises had similar outcomes for non-specific work-related upper limb complaints . Adding a brief job stress education program to a workplace ergonomic intervention was not beneficial for persistent upper extremity symptoms . Adding computer-prompted work breaks to ergonomic adjustments and workplace education benefited workers ’ recovery from recent work-related neck and upper extremity complaints . Conclusions At present , no firm conclusions can be drawn regarding the effectiveness of WDP interventions for managing neck pain , WAD , and upper extremity disorders . Our review suggests a return-to-work coordination program is more effective than clinic-based work hardening . Also , adding computer-prompted breaks to ergonomic and workplace interventions benefits workers ’ recovery . The current quality of evidence does not allow for a definitive evaluation of the effectiveness of ergonomic interventions OBJECTIVES this paper aims to report the prevalence of symptoms in the Hong Kong Chinese perimenopausal women ; to construct reported symptoms into symptom groupings ; and to clarify whether the symptom groups are associated with menopausal status . METHODS a r and om telephone survey of perimenopausal women aged 44 - 55 years was conducted in 1996 . Eligible subjects were identified through telephone dialing of a r and om sample of the numbers listed in the residents ' telephone directory . St and ardized question naire , including a 22-item symptom check list , was administered over the telephone . The principal component analysis method followed by varimax rotation was used to examine the relations among the symptoms . RESULTS differences in the prevalence of menstrual problems across the menopausal status were noted with perimenopausal women having the most complaints . Musculoskeletal conditions were the top complaints reported by the respondents , followed by headaches and psychological symptoms . About 10 % of the women complained of hot flushes , and less than 5 % of cold sweats . Five symptom clusters , namely psychological , musculoskeletal/gastrointestinal , non-specific somatic , respiratory , and vasomotor , have been identified . After adjustment for age , the analysis of variance showed that psychological , non-specific somatic and vasomotor symptoms were significantly associated with menopausal status , while musculoskeletal and respiratory were of borderline statistical significance . CONCLUSIONS compared with pre- and post-menopausal women , perimenopausal women had the highest reports of symptom complaints . Musculoskeletal complaints were the most prevalent complaints , followed by psychological symptoms . While vasomotor symptoms were significantly associated with menopausal status , their prevalence was comparatively lower than that reported in Caucasian population This study explored whether  musculoskeletal complaints can be reduced by the provision of ergonomics education . A cluster r and omized controlled trial study was conducted in which 3 units were r and omized to intervention and received training and 3 units were given a leaflet . The effect of intervention on knowledge , workstation practice s , musculoskeletal complaints , sickness absence , and psychological well-being were assessed at 6 and 12 months . Although there was no increment of knowledge among workers , significant improvements in workstation practice s in the use of monitor , keyboard , and chair were observed . There were significant reductions in neck and upper and lower back complaints among workers but these did not translate into fewer days lost from work . Workers ’ stress was found to be significantly reduced across the studies . In conclusion , office ergonomics training can be beneficial in reducing musculoskeletal risks and stress among workers STUDY DESIGN Systematic review and best evidence synthesis . OBJECTIVES To describe the prevalence and incidence of  neck pain and disability in workers ; to identify risk factors for neck pain in workers ; to propose an etiological diagram ; and to make recommendations for future research . SUMMARY OF BACKGROUND DATA Previous review s of the etiology of neck pain in workers relied on cross-sectional evidence . Recently published cohorts and r and omized trials warrant a re- analysis of this body of research . METHODS We systematic ally search ed Medline for literature published from 1980 - 2006 . Retrieved articles were review ed for relevance . Relevant articles were critically appraised . Articles judged to have adequate internal validity were included in our best evidence synthesis . RESULTS One hundred and nine papers on the burden and determinants of neck pain in workers were scientifically admissible . The annual prevalence of neck pain varied from 27.1 % in Norway to 47.8 % in Québec , Canada . Each year , between 11 % and 14.1 % of workers were limited in their activities because of neck pain . Risk factors associated with neck pain in workers include age , previous musculoskeletal pain , high quantitative job dem and s , low social support at work , job insecurity , low physical capacity , poor computer workstation design and work posture , sedentary work position , repetitive work and precision work . We found preliminary evidence that gender , occupation , headaches , emotional problems , smoking , poor job satisfaction , awkward work postures , poor physical work environment , and workers ' ethnicity may be associated with neck pain . There is evidence that interventions aim ed at modifying workstations and worker posture are not effective in reducing the incidence of neck pain in workers . CONCLUSION Neck disorders are a significant source of pain and activity limitations in workers . Most neck pain results from complex relationships between individual and workplace risk factors . No prevention strategies have been shown to reduce the incidence of neck pain in workers
Practitioner 's Summary : Currently , there is inconsistent evidence for recommending job rotation as a strategy for preventing musculoskeletal complaints .
The aim of this systematic review was to summarise evidence on the effects of job rotation on musculoskeletal complaints , exposures related to musculoskeletal complaints and sustainable working life parameters .