Department of Mechanical & Industrial Engineering, Northeastern University, Boston, MA 02115, USA.
Department of Physical Therapy & Athletic Training, Boston University, Boston, MA 02215, USA.
Sensors (Basel). 2020 Sep 2;20(17):4970. doi: 10.3390/s20174970.
The use of wireless sensors to measure motion in non-laboratory settings continues to grow in popularity. Thus far, most validated systems have been applied to measurements in controlled settings and/or for prescribed motions. The aim of this study was to characterize adolescent hip joint motion of elite-level athletes (soccer players) during practice and recreationally active peers (controls) in after-school activities using a magneto-inertial measurement unit (MIMU) system. Opal wireless sensors (APDM Inc., Portland OR, USA) were placed at the sacrum and laterally on each thigh (three sensors total). Hip joint motion was characterized by hip acceleration and hip orientation for one hour of activity on a sports field. Our methods and analysis techniques can be applied to other joints and activities. We also provide recommendations in order to guide future work using MIMUs to pervasively assess joint motions of clinical relevance.
无线传感器在非实验室环境中测量运动的应用越来越受欢迎。到目前为止，大多数经过验证的系统都应用于控制环境下的测量和/或规定的运动。本研究的目的是使用磁惯性测量单元（MIMU）系统来描述精英水平运动员（足球运动员）在练习和休闲活动中以及在课余活动中同年龄组的髋关节运动，这些运动员是积极活跃的同龄人（对照组）。在骶骨和大腿外侧（总共三个传感器）放置 Opal 无线传感器（APDM Inc.，波特兰，美国）。通过在运动场上进行一小时的活动来描述髋关节运动，包括髋关节加速度和髋关节方向。我们的方法和分析技术可应用于其他关节和活动。我们还提供了建议，以便指导未来使用 MIMU 广泛评估具有临床相关性的关节运动的工作。
