 A clinical trial found that using wearable devices and mobile apps to increase physical activity in middle-aged people living in rural South Korea can effectively improve health indicators, including PA, and reduce METS factors. However, only the enhanced intervention group with both wearable device and mobile app usage achieved the recommended level of moderate to vigorous physical activity, MVPA, and increased step counts above the recommended level to prevent METS. This article was authored by Heejin Kim, Kang Hyun-li, Yonghan Lee, and others.