Biomechanical Comparison between Down-the-Line and Cross-Court Topspin Backhand in Competitive Table Tennis

Kaige Xing, Lanping Hang, Zijun Lu, Chuangui Mao, Dong Kang, Chen Yang and Yuliang Sun
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Kaige Xing: Department of Physical Education, Chang’an University, Xi’an 710064, China
Lanping Hang: Department of Physical Education, Chang’an University, Xi’an 710064, China
Zijun Lu: Department of Exercise Science, School of Physical Education, Shaanxi Normal University, Xi’an 710119, China
Chuangui Mao: Department of Exercise Science, School of Physical Education, Shaanxi Normal University, Xi’an 710119, China
Dong Kang: Department of Physical Education, Chang’an University, Xi’an 710064, China
Chen Yang: Department of Kinesiology and Physical Education, Faculty of Education, McGill University, Montreal, QC H2W 1S4, Canada
Yuliang Sun: Department of Exercise Science, School of Physical Education, Shaanxi Normal University, Xi’an 710119, China

IJERPH, 2022, vol. 19, issue 9, 1-18

Abstract: The aim of this study was to compare the kinematic and kinetic differences of the racket arm when balls were hit cross-court (CC) and down the line (DL) by topspin backhand. Eight elite female players participated and were instructed to hit the ball down the line and cross-court using a topspin backhand. Kinematic and kinetic data were collected. The results show that at the impact, participants had a greater wrist flexion angle in DL than CC ( p = 0.017). The angular velocity of shoulder flexion ( p = 0.038), shoulder abduction ( p = 0.006) and thorax–pelvis internal rotation ( p = 0.017) was faster when participants impacted the ball DL than CC. As for the joint kinetics, the shoulder external rotation moment was greater in CC than DL ( p = 0.043). For a high-quality DL technique, it is important to exhibit a greater wrist flexion and have faster adduction and flexion in the shoulder, as well as faster internal rotation in thorax–pelvis, while having a smaller wrist flexion and more external rotation power in the shoulder are important to perform a CC at the impact. If these key and different factors of hitting CC and DL are ignored, it may lead to failure to complete a high-quality shot.

Keywords: table tennis; backhand; topspin; kinematics and kinetics; down-the-line and cross-court (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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