A Bristol scientist created a low-power insole with sensors to detect fall risks in older adults by analyzing their walking patterns.

A University of Bristol scientist, Dr. Jiayang Li, has created a shoe insole with hundreds of tiny sensors to detect fall risks in older adults, inspired by his mentor’s balance issues. The device captures real-time gait data—such as pressure distribution and walking patterns—and sends it to a mobile device for analysis, helping identify instability early. Designed to run on just 100 microwatts, it lasts up to three months on a single charge and could be powered by a smartphone. Originally developed for lung function monitoring, the technology has been adapted for mobility tracking. The insole will be demonstrated at an IEEE conference, with plans for clinical trials, data refinement, and eventual mass production as a low-cost tool to help seniors stay safe and independent at home.