Human Movements Biomechanics Research Group, Department of Movement Sciences, KU Leuven, 3001 Leuven, Belgium.
Department of Kinesiology, UMASS Amherst Amherst, University of Massachusetts Integrative Locomotion Lab, Amherst, MA 01003, USA.
Sensors (Basel). 2021 Nov 6;21(21):7385. doi: 10.3390/s21217385.
Movement dynamics during running was previously characterized using a trunk-mounted accelerometer, and were associated with a history of overuse injuries. However, it remains unknown if these measures are also linked to the development of overuse injuries. The aim of this study was therefore to determine how movement dynamics alter in response to fatigue, and the possible link with developing lower-leg overuse injuries during a six-month follow-up period. Two hundred and eight movement science university students completed a 12-min all-out run while wearing a trunk-mounted accelerometer. Dynamic stability, dynamic loading and spatiotemporal measures were extracted from the accelerometer. Participants sustaining an injury within the 6-month period demonstrated significantly higher RMS ratio values in the vertical direction and lower RMS ratio values in the anteroposterior direction, and lower impact acceleration values in the anteroposterior direction in an unfatigued state compared to the uninjured group. They also demonstrated an increase in dynamic loading in the horizontal plane during the run. In addition, with running fatigue both groups exhibited changes in dynamic stability and loading measures. These results show the potential of using a single trunk-mounted accelerometer to detect changes in movement dynamics that are linked to lower-leg overuse injuries.
跑步时的运动动态以前是通过躯干安装的加速度计来描述的，并且与过度使用损伤的病史有关。然而，目前尚不清楚这些措施是否也与过度使用损伤的发展有关。因此，本研究的目的是确定运动动态如何因疲劳而改变，以及在六个月的随访期间与下肢过度使用损伤的发展可能存在的联系。208 名运动科学专业的大学生在佩戴躯干安装的加速度计的情况下完成了 12 分钟的全力跑步。从加速度计中提取了动态稳定性、动态加载和时空测量值。与未受伤组相比，在六个月期间受伤的参与者在垂直方向上的 RMS 比值显著较高，在前后方向上的 RMS 比值显著较低，在前后方向上的冲击加速度值显著较低。在未疲劳状态下，他们在水平方向上的动态加载也表现出增加。此外，随着跑步疲劳，两组在动态稳定性和加载测量方面都表现出变化。这些结果表明，使用单个躯干安装的加速度计来检测与下肢过度使用损伤相关的运动动态变化具有潜力。
