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 .
Effects of the Workplace Health Promotion Activities Soccer and Zumba on Muscle Pain, Work Ability and Perceived Physical Exertion among Female Hospital Employees
Objectives This 40-week workplace physical training RCT investigated the effect of soccer and Zumba , respectively , on muscle pain intensity and duration , work ability , and rating of perceived exertion ( RPE ) during work among female hospital employees . Methods 107 hospital employees were cluster-r and omized into two training groups , and a control group . The training was conducted outside working hours as two-three 1-h sessions per week for the first 12 weeks , and continued as one-two 1-h sessions per week for the last 28 weeks . Muscle pain intensity and duration , work ability , and RPE during work were measured at baseline and after 12 and 40 weeks . Results After 12 weeks , both the soccer ( −1.9 , 95 % CI , −3.0 , −0.8 , P = 0.001 ) and the Zumba group ( −1.3 , 95 % CI , −2.3 , −0.3 , P = 0.01 ) reduced the pain intensity ( on a scale from 0 to 10 ) in the neck-shoulder region ( eta squared = 0.109 ) , whereas only the soccer group ( −1.9 , 95 % CI , −3.2 , −0.7 , P = 0.002 , eta squared = 0.092 ) showed a reduction after 40 weeks referencing the control group . After 40 weeks , both the soccer ( -16.4 days , 95 % CI , −29.6 , −3.2 , P<0.02 ) and the Zumba group ( -16.6 days , 95 % CI , −28.9 , −4.2 , P<0.01 ) reduced the pain duration during the past 3 months in the neck-shoulder region ( eta squared = 0.077 ) . No significant effects on intensity or duration of pain in the lower back , RPE during work or work ability were found . Conclusions The present study indicates that workplace initiated soccer and Zumba training improve neck-shoulder pain intensity as well as duration among female hospital employees . Trial Registration International St and ard R and omized Controlled Trial Number Register IS RCT N 61986892
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 .