Reduction in blood pressure , lipids and blood glucose was not statistically significant .
Conclusions Workplace interventions  significantly reduced body weight , BMI and waist circumference .
Non-significant results for biochemical markers could be due to them being secondary outcomes in most studies .
Background Adults in urban areas spend almost 77 % of their waking time being inactive at workplaces , which leaves little time for physical activity .
The aim of this systematic review and meta- analysis was to synthesize evidence for the effect of workplace physical activity interventions on the cardio-metabolic health markers ( body weight , waist circumference , body mass index ( BMI ) , blood pressure , lipids and blood glucose ) among working adults .
Worksite environment intervention to prevent obesity among metropolitan transit workers.
OBJECTIVE The results of an 18-month worksite intervention to prevent obesity among metropolitan transit workers are reported . METHODS Four garages in a major metropolitan area were r and omized to intervention or control groups . Data were collected during the fall of 2005 prior to the start of the intervention and during the fall of 2007 , after the intervention ended . Intervention program components at the garage included enhancement of the physical activity facilities , increased availability of and lower prices on healthy vending machine choices , and group behavioral programs . Mixed model estimates from cross-sectional and cohort sample s were pooled with weights inverse to the variance of their respective estimates of the intervention effects . RESULTS Measurement  participation rates were 78 % at baseline and 74 % at follow-up . The intervention effect on garage mean BMI change was not significant ( -0.14 kg/m(2 ) ) . Energy intake decreased significantly , and fruit and vegetable intake increased significantly in intervention garages compared to control garages . Physical activity change was not significant . CONCLUSION Worksite environmental interventions for nutrition and physical activity behavior change may have limited impact on BMI among transit workers who spend most of their workday outside the worksite
Reduction in blood pressure , lipids and blood glucose was not statistically significant .
Conclusions Workplace interventions  significantly reduced body weight , BMI and waist circumference .
Non-significant results for biochemical markers could be due to them being secondary outcomes in most studies .
Background Adults in urban areas spend almost 77 % of their waking time being inactive at workplaces , which leaves little time for physical activity .
The aim of this systematic review and meta- analysis was to synthesize evidence for the effect of workplace physical activity interventions on the cardio-metabolic health markers ( body weight , waist circumference , body mass index ( BMI ) , blood pressure , lipids and blood glucose ) among working adults .