Institute for Sport and Sport Science, TU Dortmund University, Otto-Hahn-Straße 3, 44227 Dortmund, Germany.
Department of Biomechanics, Performance Analysis and Strength & Conditioning, Olympic Training and Testing Centre Westphalia, 44139 Dortmund, Germany.
Sensors (Basel). 2020 May 25;20(10):2995. doi: 10.3390/s20102995.
The recent paper "Hurdle Clearance Detection and Spatiotemporal Analysis in 400 Meters Hurdles Races Using Shoe-Mounted Magnetic and Inertial Sensor" ( 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.
最近的一篇论文“使用鞋装磁性和惯性传感器在 400 米跨栏比赛中进行障碍清除检测和时空分析”（2020 年，20 卷，354 页）提出了一种基于足部佩戴的微型惯性测量单元（MIMU）的可穿戴系统以及不同的方法来检测障碍清除，并在 400 米跨栏比赛中识别领先腿。此外，所提出的系统还可以识别比赛过程中接触时间、腾空时间、跑步速度和步频的变化。在这篇评论中，我们将重点讨论原始论文的生态有效性和 MIMU 系统在基于场地的设置（例如精英运动员的训练或比赛）中的适用性。
