“…Due to the critical role of pelvic movement on the axial rotation of the trunk rotation and hitting speed, pelvic movement plays a crucial role in powerful hitting sports, such as table tennis, tennis, and baseball ( Elliott and Zatsiorsky, 2000 ; Akutagawa and Kojima, 2005 ). In table tennis, the horizontal velocity of the racket during the topspin forehand stroke was benefited by the peak angular velocity of pelvic axial rotation and the pelvic axial rotation torque on the playing hand side ( Iino, 2018 ; He et al, 2022a ). In order to remain powerful and competitive, players need to increase the acceleration of their playing hand by optimizing their stroke skill and the efficiency of the power chain transmission, which brings gains to the spin effect and flight speed of the ball during the topspin forehand ( Qian et al, 2016 ; Lam et al, 2019 ; He et al, 2020 ; Chen et al, 2022 ).…”