Title : Music-paced physical activity improving physical activity level and cardiac risk factors among Chinese CHD patients with overweight or obesity
Background: Cardiac rehabilitation (CR) has been shown benefits in improving patients’ outcomes. However, the nonadherence to the prescribed physical activity and elected level of risk factors remain the concerns for patients after CR. Objective: To evaluate the effect of a music-paced physical activity on physical activity level and cardiac risk factors among overweight or obese CHD patients. Methods: This was a randomized controlled trial with 104 overweight or obese Chinese CHD patients (BMI>22.9kg/m2 ). Participants were randomized into the intervention (n=52) or control group (n=52). The intervention group received four sessions of music-paced physical activity instruction and practice. The music was personalized, and the tempo of the music was synchronized with the prescribed walking-pace to allow participants practice physical activity at the required intensity. The control group received two sessions of instruction on moderate physical activity and brisk walking practice. Data on physical activity and cardiac risk factors (waist circumference, body fat, lipids profile, and fasting glucose) were collected at baseline and 3-month (end of the intervention). Generalized estimating equation model was sued for data analysis. Results: The mean age of the sample was 63.66 (9.61), with 80.8% for males. A lower dropout rate was found in the intervention group (15.4%) than the control group (23.1%), indicating the beneficial effects of music-paced approach on improving patients’ adherence to physical activity. Results showed that the intervention group demonstrated improvements in physical activity level and HDL level, and decrease in body fat and fasting glucose; while only the increase in HDL reached statistical significance comparing with the control group (β=0.202, 95%CI: 0.018, 0.385, p=0.031). Conclusion: The music-paced physical activity is helpful in improving physical activity level and reducing cardiac risk factors among overweight or obese CHD patients, providing insights into intervention development to promote physical activity in this population.