Biomechanics and Motor Control of Human Movement, Department of Movement and Sports Sciences, Ghent University, 9000, Ghent, Belgium.
Department of Arts, Music and Theatre Sciences, IPEM, Ghent University, 9000, Ghent, Belgium.
Sci Rep. 2021 Feb 18;11(1):4091. doi: 10.1038/s41598-021-83538-w.
Methods to reduce impact in distance runners have been proposed based on real-time auditory feedback of tibial acceleration. These methods were developed using treadmill running. In this study, we extend these methods to a more natural environment with a proof-of-concept. We selected ten runners with high tibial shock. They used a music-based biofeedback system with headphones in a running session on an athletic track. The feedback consisted of music superimposed with noise coupled to tibial shock. The music was automatically synchronized to the running cadence. The level of noise could be reduced by reducing the momentary level of tibial shock, thereby providing a more pleasant listening experience. The running speed was controlled between the condition without biofeedback and the condition of biofeedback. The results show that tibial shock decreased by 27% or 2.96 g without guided instructions on gait modification in the biofeedback condition. The reduction in tibial shock did not result in a clear increase in the running cadence. The results indicate that a wearable biofeedback system aids in shock reduction during over-ground running. This paves the way to evaluate and retrain runners in over-ground running programs that target running with less impact through instantaneous auditory feedback on tibial shock.
已经提出了基于胫骨加速度实时听觉反馈来减少长跑运动员冲击力的方法。这些方法是在跑步机上跑步的基础上开发的。在这项研究中，我们将这些方法扩展到了一个更自然的环境中，进行了概念验证。我们选择了 10 名胫骨冲击较高的跑步者。他们在田径场上跑步时，使用带有耳机的基于音乐的生物反馈系统。反馈包括叠加在胫骨冲击上的噪声的音乐。音乐可以根据跑步的节奏自动同步。通过降低胫骨冲击的瞬时水平，可以降低噪声水平，从而提供更愉悦的听觉体验。跑步速度在没有生物反馈的情况下和有生物反馈的情况下进行控制。结果表明，在没有步态修改指导的生物反馈条件下，胫骨冲击降低了 27%或 2.96g。胫骨冲击的降低并没有导致跑步节奏明显增加。结果表明，可穿戴式生物反馈系统有助于减少地面跑步时的冲击。这为通过胫骨冲击的即时听觉反馈来评估和重新训练目标是减少冲击的地面跑步项目中的跑步者铺平了道路。
