Kong Pui Wah, Yam Jia Wen
Physical Education and Sports Science Academic Group, National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore, 637616, Singapore.
BMC Sports Sci Med Rehabil. 2022 Jul 24;14(1):143. doi: 10.1186/s13102-022-00536-9.
Both able-bodied and Class 7 para-table tennis players compete while standing, but do they use the same techniques to hit the ball? This case study examined the shoulder joint kinematics of a highly skilled para-table tennis player with severe leg impairment.
One international level Class 7 male para-table tennis player was compared with a control group of 9 male, competitive university team players. Participants performed 15 trials of forehand and 15 trials of backhand topspin drives. Shoulder abduction/adduction angles and joint range of motion (ROM) were measured using an inertial measurement system.
The joint ROM of the para-player was comparable to the control group in the forehand [para-player 38°, controls 32 (15)°] and slightly larger in backhand [para-player 35°, controls 24 (16)°]. Waveform analysis revealed significant differences in the entire forehand drives (p < .001) and the preparation (p < .001) and follow-through phases (p = .014) of the backhand drives.
Coaches should not simply instruct para-table tennis players to replicate the characteristics of able-bodied players. Depending on the nature of the physical impairment, para-players should optimise their movement strategies for successful performance.
健全人和7级残疾乒乓球运动员均在站立状态下进行比赛，但他们击球时使用的技术相同吗？本案例研究考察了一名腿部严重受损的高水平残疾乒乓球运动员的肩关节运动学。
将一名国际水平的7级男性残疾乒乓球运动员与一个由9名男性大学竞技队队员组成的对照组进行比较。参与者进行了15次正手和15次反手的上旋击球试验。使用惯性测量系统测量肩关节外展/内收角度和关节活动范围（ROM）。
残疾运动员的关节活动范围在前手击球时与对照组相当[残疾运动员38°，对照组32（15）°]，反手击球时略大[残疾运动员35°，对照组24（16）°]。波形分析显示，在整个正手击球过程（p < .001）以及反手击球的准备阶段（p < .001）和随挥阶段（p = .014）存在显著差异。
教练不应简单地指导残疾乒乓球运动员模仿健全运动员的特点。根据身体损伤的性质，残疾运动员应优化其运动策略以取得成功表现。
