PET effects on physical fitness in  healthy workers  are moderated by age ( CRF ) and occupation type ( muscular endurance ) .
Further , independently computed subgroup analyses indicated that the training period of the PET programs may play an important role in improving CRF in workers
There is evidence that physical exercise training ( PET ) conducted at the workplace is effective in improving physical fitness and thus health .
However , there is no current systematic review available that provides high-level evidence regarding the effects of PET on physical fitness in the workforce .
To quantify sex- , age- , and occupation type-specific effects of PET on physical fitness and to characterize dose – response relationships of PET modalities that could maximize gains in physical fitness in the working population .
The effect of a resistance-training program on muscle strength, physical workload, muscle fatigue and musculoskeletal discomfort: an experiment.
The aim of the study was to investigate the effectiveness of a resistance-training program on muscle strength of the back and neck/shoulder muscles , relative physical workload , muscle fatigue and musculoskeletal discomfort during a simulated assembly and lifting task . Twenty-two workers were r and omized over an 8-week resistance-training group , and a control group .  Isokinetic muscle strength was assessed using the  Cybex dynamometer  , muscle fatigue was measured using EMG , and perceived discomfort was measured using a 10-point scale . At the follow-up , we found no effect of the resistance-training program on isokinetic muscle strength of the back and shoulder muscles . Furthermore , we did not find any effect on EMG data , nor on musculoskeletal discomfort during the simulated work tasks . However , trained workers performed the lifting tasks for a longer time before reporting considerable discomfort than those in the control group
PET effects on physical fitness in  healthy workers  are moderated by age ( CRF ) and occupation type ( muscular endurance ) .
Further , independently computed subgroup analyses indicated that the training period of the PET programs may play an important role in improving CRF in workers
There is evidence that physical exercise training ( PET ) conducted at the workplace is effective in improving physical fitness and thus health .
However , there is no current systematic review available that provides high-level evidence regarding the effects of PET on physical fitness in the workforce .
To quantify sex- , age- , and occupation type-specific effects of PET on physical fitness and to characterize dose – response relationships of PET modalities that could maximize gains in physical fitness in the working population .