Conclusion This review indicates that current research on activity monitoring devices may be overstated due to the variability in adherence .
Results showed that physical activity tracking in women and in young adults have been understudied
Background Activity monitoring devices are currently being used to facilitate and monitor physical activity .
No prior review has examined adherence to the use of activity monitoring devices amongst adults with cardiovascular disease .
The effectiveness of physical activity monitoring and distance counseling in an occupational setting – Results from a randomized controlled trial (CoAct)
Background Lack of physical activity ( PA ) is a known risk factor for many health conditions . The workplace is a setting often used to promote activity and health . We investigated the effectiveness of an intervention on  PA and productivity-related outcomes in an occupational setting . Methods We conducted a r and omized controlled trial of 12 months duration with two 1:1 allocated parallel groups of insurance company employees . Eligibility criteria included permanent employment and absence of any condition that risked the participant ’s health during PA . Subjects in the intervention group monitored their daily PA with an accelerometer , set goals , had access to an online service to help them track their activity levels , and received counseling via telephone or web messages for 12 months . The control group received the results of a fitness test and an information leaflet on PA at the beginning of the study . The intervention ’s aim was to increase PA , improve work productivity , and decrease sickness absence . Primary outcomes were PA ( measured as MET minutes per week ) , work productivity ( quantity and quality of work ; QQ index ) , and sickness absence ( SA ) days at 12 months . Participants were assigned to groups using block r and omization with a computer-generated scheme . The study was not blinded . Results There were 544 r and omized participants , of which 521 were included in the analysis ( 64 % female , mean age 43 years ) . At 12 months , there was no significant difference in physical activity levels between the intervention group ( n = 264 ) and the control group ( n = 257 ) . The adjusted mean difference was −206 MET min/week [ 95 % Bayesian credible interval −540 to 128 ; negative values favor control group ] . There was also no significant difference in the QQ index ( −0.5 [ −4.4 to 3.3 ] ) or SA days ( 0.0 [ −1.2 to 0.9 ] ) . Of secondary outcomes , body weight ( 0.5 kg [ 0.0 to 1.0 ] ) and percentage of body fat ( 0.6 % [ 0.2 % to 1.1 % ] ) were slightly higher in the intervention group . An exploratory subgroup analysis revealed no subgroups in which the intervention affected physical activity . No adverse events were reported . Conclusions The intervention was not found effective , and this study does not provide support for the effectiveness of the workplace PA intervention used here . Trial registration Clinical Trials.gov identifier :
Conclusion This review indicates that current research on activity monitoring devices may be overstated due to the variability in adherence .
Results showed that physical activity tracking in women and in young adults have been understudied
Background Activity monitoring devices are currently being used to facilitate and monitor physical activity .
No prior review has examined adherence to the use of activity monitoring devices amongst adults with cardiovascular disease .