Background

Sedentary lifestyle is highly prevalent in professional workplace that has emerged as a major public health concerns. The study reported the results of a 12-month worksite intervention to reduce the cardiometabolic risk in Chinese office workers.

Methods

Using a quasi-experimental design, three workplaces received 1) a sedentary behavior reduction program that used a timer App to interrupt prolonged sitting during work hours (SBR; n=66), 2) a 30-minute instructor-led physical activity daily at work (PA; n=64), or 3) no treatment (Control; n=71). Study outcomes included triglycerides (mmol/L), fasting glucose (mmol/L), lipids (mmol/L), body Mass Index (BMI; kg/m2), waist circumference (cm), body fat percent, blood pressure, andmoderate to vigorous physical activity (MVPA; minutes/day) and sedentary behavior (SED; minutes/day) by accelerometry at baseline and posttest. General Linear Model was used to contrast (SED vs. Control and PA vs. Control) the changes in the outcomes from baseline to posttest controlling gender, age, and education.

Results

Results revealed significant changes in triglycerides by -.14 and -.12, fasting glucose by -.21 and -.28, body fat percent by -.10 (n.s.) and -.51, BMI by .02 (n.s.) and -.21, and waist circumference by -.27 (n.s.) and -.73 for SBR vs. control and PA vs. control, respectively. SBR group significantly lowered SED by 35.75 as well as daily MVPA by 4.53 compared to Control. PA group significantly increased daily MVPA by 16.79 while decreasing SED by 13.81 compared to Control.

Conclusions

Worksite health promotion holds promise to reduce the cardiometabolic risk in office workers.