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 .
A randomised controlled trial among cleaners-Effects on strength, balance and kinesiophobia
Background Cleaners constitute a job group with poor health and low socioeconomic re sources . Therefore , there is a great need for scientifically documented health promoting initiatives for cleaners . However , both workplace initiatives and high quality intervention studies are lacking . The aim of this study was to evaluate the effects of a 3-month workplace trial with interventions to improve physical or cognitive behavioural re sources among cleaners . Methods A cluster r and omised controlled trial was conducted among 294 female cleaners from 9 workplaces . The participants were allocated to three groups : Physical coordination training ( PCT , n = 95 ) , Cognitive behavioural theory-based training ( CBTr , n = 99 ) and Reference group ( REF , n = 100 ) . Interventions were conducted during work hours for an average of 1 hour/week . Muscle strength was measured by maximal voluntary contractions in trunk/extension , and shoulder abduction/elevation . Postural balance was measured on a force platform . Kinesiophobia was measured with Tampa Scale for Kinesiophobia . Test and question naires were completed at baseline and at 3-month follow-up and analyses followed the intention-to-treat ( ITT ) principle with last observation carried forward in case of missing data at follow-up . Reports and analyses are given on true observations as well . Results ITT-analyses revealed that PCT improved strength of the trunk ( p < .05 ) and postural balance ( p < .05 ) compared to CBTr and REF . Based on true observations the strength and balance improvements corresponded to ~20 % and ~16 % , respectively . ITT-analyses showed that CBTr reduced kinesiophobia compared to PCT and REF ( p < .05 ) . Based on true observations , the improvement corresponded to a ~16 % improvement . Conclusion This workplace-based intervention study including PCT and CBTr among cleaners improved strength and postural balance from PCT , and kinesiophobia from CBTr . The improved strength , postural balance and kinesiophobia may improve the cleaners ' tolerance for high physical work dem and s. Future studies should investigate the potential in the combination of PCT and CBTr in a workplace intervention . Trial registration Current controlled trials IS RCT
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 .