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 .
A multifaceted workplace intervention for low back pain in nurses' aides: a pragmatic stepped wedge cluster randomised controlled trial
Abstract This study established the effectiveness of a workplace multifaceted intervention consisting of participatory ergonomics , physical training , and cognitive – behavioural training ( CBT ) for  low back pain ( LBP ) . Between November 2012 and May 2014 , we conducted a pragmatic stepped wedge cluster r and omised controlled trial with 594 workers from eldercare workplaces ( nursing homes and home care ) r and omised to 4 successive time periods , 3 months apart . The intervention lasted 12 weeks and consisted of 19 sessions in total ( physical training [ 12 sessions ] , CBT [ 2 sessions ] , and participatory ergonomics [ 5 sessions ] ) . Low back pain was the outcome and was measured as days , intensity ( worst pain on a 0 - 10 numeric rank scale ) , and bothersomeness ( days ) by monthly text messages . Linear mixed models were used to estimate the intervention effect . Analyses were performed according to intention to treat , including all eligible r and omised participants , and were adjusted for baseline values of the outcome . The linear mixed models yielded significant effects on LBP days of −0.8 ( 95 % confidence interval [ CI ] , −1.19 to −0.38 ) , LBP intensity of −0.4 ( 95 % CI , −0.60 to −0.26 ) , and bothersomeness days of −0.5 ( 95 % CI , −0.85 to −0.13 ) after the intervention compared with the control group . This study shows that a multifaceted intervention consisting of participatory ergonomics , physical training , and CBT can reduce LBP among workers in eldercare . Thus , multifaceted interventions may be relevant for improving LBP in a working population
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 .