Remote Physical Activity Intervention
chronic disease
CHRONIC DISEASE
At time 1, web-based health education was offered. The risks of overweight and obesity, importance of weight management, and benefits of regular physical activity were explained to the participants. During the study period, the participants were encouraged and advised to complete at least 20 minutes of resistance physical activity (eg, squatting, push-ups, and weight lifting) or 20 minutes of aerobic physical activity (eg, walking, jogging, and dancing) or walk 6000 steps every day. After completing the daily physical activity, related photos and the types and time of physical activity were uploaded to the app by participants. In addition, the physical activity instructors provided the participants with one-on-one personalized dietary guidance and suggestions through the WeChat social group or phone according to their age, gender, weight, food intake, chronic disease situation, and choice of physical activity type and advice on the intensity and duration of physical activity 3 to 5 times a week according to the compliance of the participants. However, considering the typical physiological functions of older participants, it was not mandatory for them to complete all physical activities. The activity tracker was required to track and record their number of walking steps.The participants in group DPI received both remote dietary and physical activity interventions for 3 months. Group PI received a remote physical activity intervention for 3 months. In addition, during the study period, the participants in groups DPI and PI were required to monitor and measure their weight, waist circumference, hip circumference, blood pressure, and blood glucose every week and upload the data to the app. The participants in group C did not receive an intervention and could maintain their previous lifestyle, but each was given a health education book on a reasonable diet.