Faculty of Sport and Physical Education, University of Belgrade, Blagoja Parovića Street 156, 11030 Belgrade, Serbia.
College of Sports and Health, Toše Jovanovića 11, 11030 Belgrade, Serbia.
Sensors (Basel). 2023 Jan 28;23(3):1456. doi: 10.3390/s23031456.
We examine the relation between two devices used in measuring the timing in lower limb complex movement tests for DanceSport athletes, an inertial measurement unit (IMU) and a FitLight Trainer device, with the latter regarded as the gold standard method in the field. Four tests are selected to cover the lower limb movements. The research sample comprises 21 experienced dancers from different dance disciplines, performing the four tests with each of their lower limbs. Compared using concurrent validity, the two devices used show great agreement for estimating the total tests' run times, with interclass correlation coefficients between 0.967 and 0.994 for all tests. This agreement is additionally confirmed by Bland-Altman plots. As an alternative to other devices, the IMU sensor has proven to be a precise and suitable device for measuring timing and testing in sports. Its mobility, light weight, and size are advantages of this device in addition to measurement accuracy.
我们研究了在测量舞蹈运动运动员下肢复杂运动测试中的两种计时设备（惯性测量单元（IMU）和 FitLight Trainer 设备）之间的关系，后者被认为是该领域的金标准方法。选择了四项测试来涵盖下肢运动。研究样本包括来自不同舞蹈学科的 21 名经验丰富的舞者，他们用每条腿完成四项测试。通过同时有效性进行比较，两种设备在估计总测试运行时间方面显示出很好的一致性，所有测试的组内相关系数在 0.967 到 0.994 之间。Bland-Altman 图进一步证实了这种一致性。作为其他设备的替代品，IMU 传感器已被证明是一种精确且适合测量运动时间和测试的设备。除了测量精度之外，其移动性、重量轻和尺寸小是该设备的优势。
