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 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. Use of keyboards and symptoms in the neck and arm: evidence from a national survey. Effectiveness of workplace interventions in rehabilitating musculoskeletal disorders and preventing its consequences among workers with physical and sedentary employment: systematic review protocol Efficacy of postural and neck-stabilization exercises for persons with acute whiplash-associated disorders: a systematic review. A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders. Differential effects of mental concentration and acute psychosocial stress on cervical muscle activity and posture. Comparative effectiveness of manipulation, mobilisation and the Activator instrument in treatment of non-specific neck pain: a systematic review A randomised controlled trial of postural interventions for prevention of musculoskeletal symptoms among computer users Prognostic Factors for Intervention Effect on Neck/Shoulder Symptom Intensity and Disability among Female Computer Workers
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 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 The objective of this study was to examine the relationship between upper limb symptoms and keyboard use in a population survey . A question naire was mailed to 21,201 subjects aged 16 - 64 years , selected at r and om from the registers of 34 British general practice s. Information was collected on occupation and on regular use of keyboards ( for > 4 h in an average working day ) , pain in the upper limbs and neck , numbness or tingling in the upper limbs , headaches , and feelings of tiredness or stress . Associations were explored by logistic regression , with the result ant odds ratios converted into prevalence ratios ( PRs ) . Among 12,262 respondents , 4899 held non-manual occupations . These included 1871 regular users of keyboards ( e.g. computer operators , data processors , clerks , administrators , secretaries and typists ) .  Pain in the neck or upper limbs and sensory symptoms were common in the non-manual workers overall ( with 1 week period prevalences of 30 and 15 % , respectively ) , and were associated with older age , smoking , headaches and tiredness or stress . After adjustment for these factors , regular keyboard use was significantly associated with pain in the past week in the shoulders ( PRs 1.2 - 1.4 ) and the wrists or h and s ( PR 1.4 ) , but not with elbow pain or sensory symptoms over the same period , or with neck or upper limb pain that prevented normal activities in the past year . Disabling symptoms were somewhat less prevalent among symptomatic keyboard users than among other symptomatic workers . We conclude that use of keyboards was associated with discomfort at the shoulder and wrist or h and , but risk estimates were lower than generally reported in workplace surveys . Previous estimates of risk in the occupational setting may have been biased by shared expectations , concerns , or other aspects of illness behaviour Background Musculoskeletal disorders ( MSDs ) are the leading cause of work disability and sickness absence worldwide . The prevalence of MSDs increases with age , consequently challenging sustainable employability among the growing ageing workforce . Knowledge of feasible and efficient workplace-based interventions to rehabilitate MSD or prevent its consequences is therefore warranted . This systematic review will evaluate the effectiveness of workplace-based interventions on MSDs and its consequences among adult workers with physical and sedentary work tasks , respectively . Methods We will search the following bibliographic data bases : PubMed ( including the data base ‘ MEDLINE ’ ) and Web of Science Core Collection ( including the data bases ‘ Science Citation Index Exp and ed ’ , ‘ Social Sciences Citation Index ’ and ‘ Arts & Humanities Citation Index ’ ) . Manual search es will also be performed . We will include r and omised controlled trials ( RCTs ) and non- RCTs reported in English in which ( 1 ) participants are adult workers with MSD , ( 2 ) interventions are aim ing at rehabilitating pain symptoms of MSD or preventing the consequences of MSD and ( 3 ) interventions are initiated and /or carried out at the workplace . The review will adhere to the ‘ Preferred Reporting Items for Systematic review s and Meta-Analyses ’ ( PRISMA ) guidelines for reporting systematic review s and the Institute for Work and Health ( IWH ) guidelines for workplace-based interventions . For the primary evaluation of the review , the quality assessment and evidence synthesis will conform to the IWH guidelines . Secondary evaluation will include a meta- analysis ( unless the included studies do not allow this due to heterogeneity ) and employ the risk of bias domains recommended by Cochrane along with the Grading of Recommendations , Assessment , Development and Evaluations ( GRADE ) approach on the studies with pain intensity as an outcome . Discussion This systematic review will provide knowledge on effective workplace-based interventions among physical and sedentary workers with MSD . RCTs are considered the most powerful experimental design in clinical trials , but solely including these may be too restrictive to underst and effective workplace-based interventions where r and omised and carefully controlled trials ( RCTs ) are not always possible . In order to maximize practical relevance , the selection process will , therefore , include both RCTs and non- RCTs and the quality assessment and evidence synthesis will conform to IWH guidelines focusing on developing practical guidelines for stakeholders . The result of this work will form the basis for industry-specific evidence -based recommendations on effective workplace-based interventions for rehabilitation of MSDs and its consequences that will later be operationalised into concrete and user-friendly practical tools for workplaces . Systematic review registration International Prospect i ve Register of Systematic Review s ( PROSPERO ) number CRD42018116752 PURPOSE We systematic ally review ed r and omized and quasi-r and omized clinical trials in the literature to assess the efficacy of neck stabilization and postural exercises on pain , neck range of motion , and time off work in adults with acute whiplash-associated disorders . METHODS Electronic data bases , reference lists of relevant Cochrane review s , reference lists of studies selected for inclusion , and tables of contents of relevant journals were systematic ally search ed for r and omized and quasi-r and omized controlled trials . Two independent review ers selected studies for inclusion , assessed method ological quality , and extracted data . Because of the heterogeneity of the interventions , a qualitative synthesis was performed using " levels of evidence " as recommended by van Tulder et al. RESULTS Eight studies representing five clinical trials were selected for inclusion . Two trials were grade d as high quality , two as moderate quality , and one as low quality . Many of these studies had mixed results , demonstrating significant differences on some outcome measures but not on others . CONCLUSIONS There is moderate evidence to support the use of postural exercises for decreasing pain and time off work in the treatment of patients with acute whiplash-associated disorders . However , no evidence exists to support the use of postural exercises for increasing neck range of motion . There is conflicting evidence in support of neck stabilization exercises in the treatment of patients with acute whiplash-associated disorders BACKGROUND A prospect i ve study of computer users was performed to determine the occurrence of and evaluate risk factors for  neck or shoulder ( N/S ) and h and or arm ( H/A ) musculoskeletal symptoms ( MSS ) and disorders ( MSD ) . METHODS Individuals ( n = 632 ) newly hired into jobs requiring > or = 15 hr/week of computer use were followed for up to 3 years . At study entry , workstation dimensions and worker postures were measured and medical and psychosocial risk factors were assessed . Daily diaries were used to document work practice s and incident MSS . Those reporting MSS were examined for specific MSD . Incidence rates of MSS and MSD were estimated with survival analysis . Cox regression models were used to evaluate associations between participant characteristics at entry and MSS and MSD . RESULTS The annual incidence of N/S MSS was 58 cases/100 person-years and of N/S MSD was 35 cases/100 person-years . The most common N/S MSD was somatic pain syndrome . The annual incidence of H/A MSS was 39 cases/100 person-years and of H/A MSD was 21 cases/100 person-years . The most common H/A disorder was deQuervain 's tendonitis . Forty-six percent of N/S and 32 % of H/A MSS occurred during the first month of follow-up . Gender , age , ethnicity , and prior history of N/S pain were associated with N/S MSS and MSD . Gender , prior history of H/A pain , prior computer use , and children at home were associated with either H/A MSS or MSD . CONCLUSIONS H/A and N/S MSS and MSD were common among computer users . More than 50 % of computer users reported MSS during the first year after starting a new job Physical and psychosocial stressors in the workplace have been independently associated with the development of  neck pain  , yet interactions among these risk factors remain unclear . The purpose of this study was to compare the effects of mentally challenging computer work performed with and without exposure to a psychosocial stressor on cervical muscle activity and posture . Changes in cervical posture and electromyography of upper trapezius , cervical extensor , and sternocleidomastoid muscles were compared between a resting seated posture at baseline , a low stress condition with mental concentration , and a high stress condition with mental concentration and psychosocial stress in sixty healthy office workers .  Forward head posture significantly increased with mental concentration compared to baseline , but did not change with further introduction of the stressor . Muscle activity significantly increased from the low stress to high stress condition for both the dominant and non-dominant upper trapezius , with no corresponding change in activity of the cervical extensors or flexors between stress conditions . These findings suggest that upper trapezius muscles are selectively activated by psychosocial stress independent of changes in concentration or posture , which may have implication s for the prevention of stress-related trapezius myalgia in the workplace Background Neck pain is a common problem and different forms of manual therapy are used in its treatment . The purpose of this systematic review was to critically appraise the literature that directly compared manipulation , mobilisation and the Activator instrument for non-specific neck pain . Methods Electronic data bases ( MEDLINE , MANTIS and CINAHL ) were search ed from their inception to October 2005 for all English language r and omised clinical trials that directly compared manipulation , mobilisation and the Activator instrument . Inclusion and exclusion criteria were applied to select the studies and these studies were then evaluated using vali date d criteria . Results Five such studies were identified . The method ological quality was mostly poor . Findings from the studies were mixed and no one therapy was shown to be more effective than the others . Conclusion Further high quality research has to be done before a recommendation can be made as to the most effective manual method for non-specific neck pain Aims : To examine the effect of two workstation and postural interventions on the incidence of  musculoskeletal symptoms among computer users . Methods : R and omised controlled trial of two distinct workstation and postural interventions ( an alternate intervention and a conventional intervention ) among 376 persons using computer keyboards for more than 15 hours per week . The incidence of neck/shoulder symptoms and h and /arm symptoms during six months of follow up among individuals in the intervention groups was compared to the incidence in computer users who did not receive an intervention ( comparison group ) . For individuals in the intervention groups , study staff adjusted workstations , where possible , and trained individuals to assume the intervention postures . Individuals reported musculoskeletal symptoms in a weekly diary . Participants who reported discomfort intensity of 6 or greater on a 0–10 visual analogue scale or who reported musculoskeletal symptoms requiring use of analgesic medication were considered symptomatic . Results : There were no significant differences in the incidence of musculoskeletal symptoms among the three intervention groups . Twenty two ( 18.5 % ) participants in the alternate intervention group , 25 ( 20.2 % ) in the conventional intervention group , and 25 ( 21.7 % ) in the comparison group developed incident arm or h and symptoms . Thirty eight ( 33.3 % ) participants in the alternate intervention group , 36 ( 31.0 % ) in the conventional intervention group , and 33 ( 30.3 % ) in the comparison group developed incident neck or shoulder symptoms . Compliance with all components of the intervention was attained for only 25–38 % of individuals , due mainly to the inflexibility of workstation configurations . Conclusions : This study provides evidence that two specific workplace postural interventions are unlikely to reduce the risk of upper extremity musculoskeletal symptoms among computer users Introduction It has been suggested that treatments may be more effective when they are matched to patient characteristics . This study aim ed at investigating potential prognostic factors for clinical ly relevant improvement in symptom intensity and symptom-related disability among employees with symptoms in the neck/shoulder area , receiving either ergonomics counseling or such counseling in combination with myofeedback training .  Methods A r and omized controlled study was performed among female computer users aged 45 or older ( n = 36 ) . A clinical examination and a question naire survey were performed before inclusion in the study . Symptom intensity and disability was assessed using question naires before the start of the interventions ( baseline ) and at follow-ups directly after the end of the interventions ( T0 ) and after 3 ( T3 ) and 6 ( T6 ) months . Logistic regression analyses were performed in order to assess prognostic factors for clinical ly relevant improvement in symptom intensity and disability . Results Improvement in symptom intensity was consistently predicted by symptom intensity at baseline . Diagnosis and stress-induced lack of muscular rest were prognostic factors for improvement in symptom intensity at short term follow-up . Baseline disability and passive coping consistently served as prognostic factors for outcome in disability . Few substantial differences were found between the interventions in terms of prognostic factors . Conclusions Myofeedback training in combination with ergonomics counseling seem to be an especially beneficial tool for secondary prevention among employees with moderate levels of symptom intensity and symptom-related disability , who respond to work-related stress by increased/sustained muscle activation , and who tend to employ passive coping to deal with their neck/shoulder symptoms
Conclusions : Neck pain was not significantly associated with high job dem and s , low skill discretion , low decision authority , or low peer support .
However , when these variables were combined with increased duration of computing tasks , or ergonomic dem and s , they reached significance .
Supervisor support was found to be the only significant buffer capable of preventing these variables reaching significance in female office workers
Introduction : The purpose of this systematic review was to examine literature on workplace factors associated with  neck pain or symptoms in computer users performing clerical functions .