Results Level of evidence from 54 high and medium quality studies showed moderate evidence of a positive effect of physical exercise .
Within this domain , there was strong evidence of a positive effect of workplace strength training .
There was limited evidence for ergonomics and strong evidence for no benefit of participatory ergonomics , multifaceted interventions , and stress management .
No intervention domains were associated with “ negative effects ” .
Conclusions The evidence synthesis recommends that implementing strength training at the workplace can reduce MSD  among workers with physically dem and ing work .
In regard to workplace ergonomics , there was not enough evidence from the scientific literature to guide current practice s. Based on the scientific literature , participatory ergonomics and multifaceted workplace interventions seem to have no beneficial effect on reducing MSD among this group of workers .
Purpose This systematic review investigates the effectiveness of workplace interventions to rehabilitate musculoskeletal disorders ( MSDs ) among employees with physically dem and ing work .
The effect of a health promotion intervention for construction workers on work-related outcomes: results from a randomized controlled trial
Purpose The objective of the present study is to investigate the effects of a worksite health promotion intervention on musculoskeletal symptoms , physical functioning , work ability , work-related vitality , work performance , and sickness absence . Methods In a r and omized controlled design , 314 construction workers were r and omized into an intervention group ( n = 162 ) receiving personal coaching , tailored information , and material s , and a control group ( n = 152 ) receiving usual care .  Sickness absence was recorded continuously in company records , and question naires were completed before , directly after the 6-month intervention period , and 12 months after baseline measurements . Linear and logistic regression analyses were performed to determine intervention effects . Results No significant changes at 6 or 12 months of follow-up were observed in musculoskeletal symptoms , physical functioning , work ability , work-related vitality , work performance , and sickness absence as a result of the intervention . Conclusions This study shows that the intervention was not statistically significantly effective on secondary outcomes . Although the intervention improved physical activity , dietary , and weight-related outcomes , it was not successful in decreasing musculoskeletal symptoms and improving other work-related measures . Presumably , more multifaceted interventions are required to establish significant change in these outcomes
Results Level of evidence from 54 high and medium quality studies showed moderate evidence of a positive effect of physical exercise .
Within this domain , there was strong evidence of a positive effect of workplace strength training .
There was limited evidence for ergonomics and strong evidence for no benefit of participatory ergonomics , multifaceted interventions , and stress management .
No intervention domains were associated with “ negative effects ” .
Conclusions The evidence synthesis recommends that implementing strength training at the workplace can reduce MSD  among workers with physically dem and ing work .
In regard to workplace ergonomics , there was not enough evidence from the scientific literature to guide current practice s. Based on the scientific literature , participatory ergonomics and multifaceted workplace interventions seem to have no beneficial effect on reducing MSD among this group of workers .
Purpose This systematic review investigates the effectiveness of workplace interventions to rehabilitate musculoskeletal disorders ( MSDs ) among employees with physically dem and ing work .