Core Insights - A joint team from Lanzhou University and Ohio State University has developed a high-integration, self-powered, wireless smart insole capable of real-time foot pressure monitoring and precise identification of multiple exercise states [1][2] Group 1: Technology and Innovation - The smart insole integrates 22 pressure sensors, creating a dense sensing network that captures minute pressure changes on the foot [2] - The insole utilizes a machine learning model based on support vector machines to accurately identify eight common exercise states, including sitting, standing, walking, running, jumping, and squatting [2] Group 2: Applications and Benefits - The smart insole can help monitor the gait of elderly individuals, allowing family members to receive real-time updates on their walking data and alerting them to any abnormalities or fall risks [3] - For fitness enthusiasts, the insole can analyze foot pressure distribution during activities like running and jumping, aiding in correcting improper exercise postures to prevent injuries [3] - Parents can use the smart insole to monitor their children's gait, enabling early detection of potential foot issues [3] Group 3: Energy Solutions - To address the power supply challenge, the research team developed a flexible perovskite solar cell that can be attached to the shoe's exterior, efficiently converting sunlight into electrical energy [3] - This solar cell allows the smart insole to operate for extended periods without frequent recharging, eliminating dependence on external power sources [3]