Related Data for: Measuring upper limb kinematics of forehand and backhand topspin drives with IMU sensors in wheelchair and able-bodied table tennis players

To better understand the biomechanics of para-table tennis players, this study compared the shoulder, elbow, and wrist joint kinematics among able-bodied (AB) and wheelchair players in different classifications. Nineteen participants (AB, n = 9; classification 1 (C1), n = 3; C2, n = 3; C3, n = 4) executed 10 forehand and backhand topspin drives. Shoulder abduction/adduction, elbow flexion/extension, wrist extension/flexion, respective range of motion (ROM), and joint patterns were obtained using inertial measurement unit (IMU) sensors. The results showed clear differences in upper limb kinematics between the able-bodied and wheelchair players, especially in the elbow and wrist. For the para-players, noticeable variations in techniques were also observed among the different disability classes. In conclusion, wheelchair players likely adopted distinct movement strategies compared to AB to compensate for their physical impairments and functional limitations. Hence, traditional table tennis programs targeting skills and techniques for able-bodied players are unsuitable for para-players. Future work can investigate how best to customize training programs and to optimize movement strategies for para-players with varied types and degrees of impairment.

为深入解析残奥乒乓球运动员（para-table tennis players）的生物力学特性，本研究对比了健全运动员（able-bodied, AB）与不同分级的轮椅乒乓球运动员的肩、肘、腕关节运动学特征。共有19名受试者参与实验，其中健全组（AB）9例、1级残障组（C1）3例、2级残障组（C2）3例、3级残障组（C3）4例，所有受试者均完成10次正手与反手上旋抽球动作。研究通过惯性测量单元（inertial measurement unit, IMU）传感器采集了肩关节外展/内收、肘关节屈伸、腕关节伸/屈的相关数据，以及各关节的活动范围（range of motion, ROM）与关节运动模式。结果显示，健全运动员与轮椅乒乓球运动员的上肢运动学特征存在显著差异，尤以肘关节与腕关节的差异最为突出；同时，不同残障分级的残奥乒乓球运动员之间，其技术动作也存在明显区别。综上，相较于健全运动员，轮椅乒乓球运动员大概率采用了差异化的运动策略，以补偿自身的身体残障与功能受限问题。因此，面向健全运动员的传统乒乓球技能训练方案并不适用于残奥乒乓球运动员。未来可进一步探索如何为不同残障类型与程度的残奥乒乓球运动员定制个性化训练方案、优化其运动策略。