Department of Sports, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, 28040 Madrid, Spain.
Department of Health and Human Performance, Faculty of Physical Activity and Sport Sciences, Universidad Politécnica de Madrid, 28040 Madrid, Spain.
Int J Environ Res Public Health. 2021 Oct 2;18(19):10380. doi: 10.3390/ijerph181910380.
The application of new technologies in wheelchair basketball (WB) is important for the advancement and improvement of athletic performance. The purposes of this study are twofold: (a) to develop a methodological design in order to assess WB players' performance, using wireless inertial measurement units (WIMU) and a laser system (BioLaserSport with computer vision), in a 20 m sprint test on court and (b) to assess bilateral symmetry as a performance indicator and for injury prevention purposes, the study of which in previous research is unknown. For both aims, the relation of the acceleration of the players' wrists to the speed achieved by the player in the wheelchair was explored. Ten elite WB players participated in an on-court 20 m sprint test during real training. BioLaserSport with computer vision was used to assess the average velocity (Va) and maximum velocity (Vmax) of the WB players, and two WIMU were used for the total acceleration (AcelT) of the players' wrists. A very high correlation was obtained in the assessment of the Va (0.97) and AcelT of both wrists (0.90 and 0.85). There was a significant relationship between the average AcelT of the dominant wrist and the Va on-court sprint velocity ( < 0.05). Two players did not show good wrist symmetry. In conclusion, a new methodological protocol was developed, making it possible to assess the bilateral symmetries in elite WB players in on-court real training and the relation between the acceleration of players' wrists and players' wheelchair speed. Coaches can use this protocol to assess performance or for injury prevention, as it shows very good reliability, with high ICC values.
新技术在轮椅篮球（Wheelchair Basketball，WB）中的应用对于运动表现的提升和改善至关重要。本研究旨在达成两个目的：（a）利用无线惯性测量单元（Wireless Inertial Measurement Units，WIMU）和激光系统（BioLaserSport with computer vision）开发一种方法学设计，以评估轮椅篮球运动员在场上 20 米冲刺测试中的表现；（b）评估双侧对称性作为一种性能指标，并研究其在预防损伤方面的作用，这在之前的研究中尚属未知。对于这两个目的，研究探索了运动员手腕加速度与运动员在轮椅上的速度之间的关系。10 名精英轮椅篮球运动员在真实训练中参与了场上 20 米冲刺测试。BioLaserSport with computer vision 用于评估轮椅篮球运动员的平均速度（Va）和最大速度（Vmax），而两个 WIMU 则用于评估运动员手腕的总加速度（AcelT）。在评估 Va（0.97）和两个手腕的 AcelT（0.90 和 0.85）时，都得到了非常高的相关性。在场上冲刺速度方面，优势手腕的平均 AcelT 与 Va 之间存在显著的关系（<0.05）。有两名运动员的手腕对称性较差。总之，本研究开发了一种新的方法学协议，使我们能够在场上真实训练中评估精英轮椅篮球运动员的双侧对称性，以及运动员手腕加速度与轮椅速度之间的关系。教练可以使用该协议来评估运动员的表现或预防损伤，因为它具有很高的可靠性，ICC 值很高。
