Journal
SENSORS
Volume 20, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/s20102995
Keywords
inertial sensors; IMU; feature extraction; 400-m hurdles; spatiotemporal parameters; performance analysis
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The recent paper Hurdle Clearance Detection and Spatiotemporal Analysis in 400 Meters Hurdles Races Using Shoe-Mounted Magnetic and Inertial Sensor (Sensors 2020, 20, 354) proposes a wearable system based on a foot-worn miniature inertial measurement unit (MIMU) and different methods to detect hurdle clearance and to identify the leading leg during 400-m hurdle races. Furthermore, the presented system identifies changes in contact time, flight time, running speed, and step frequency throughout the race. In this comment, we discuss the original paper with a focus on the ecological validity and the applicability of MIMU systems for field-based settings, such as training or competition for elite athletes.
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