Hurdle crossing detection methods using foot-worn inertial and magnetic sensors in 400 meters races

The aim of this study was to investigate the capacity of foot-worn inertial and magnetic sensors to detect hurdle crossings and provide a detailed spatiotemporal running analysis of a 400 meters hurdling race. The results showed that the flight phase duration combined with the foot orientation or with a magnet-based system can accurately detect the timing of hurdle crossings, hence allowing to report detailed performance evaluation features to the coaches.