Department of Physical Medicine and Rehabilitation, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, R.O.C.
Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan, Taiwan, R.O.C.
J Sports Sci Med. 2020 May 1;19(2):264-270. eCollection 2020 Jun.
Badminton atypical actions and hitting movements often occur during the game; therefore, many special footwork methods have been developed to facilitate the rapid movements required to hit the shuttlecock, including quick turning and jumping and quick directional change movements. Studies have shown that the majority of badminton sport injuries occur in the lower extremity joints of athletes. The purpose of this study was to investigate the influences of hitting motion and unanticipated hitting direction on landing mechanics after backhand lateral jump smashing and landing to analyze joint stiffness and torque changes in three lower extremity joints. Recruited sixteen badminton athletes.The capture frequency of the Vicon Motion System (300Hz), Kistler force platform (1500Hz) and Vicon Nexus Version 1.8.5 software were used simultaneously to capture the kinematic and kinetic parameter of backhand side lateral jump smash footwork. The swing actions were divided into two situations, shadow (footwork and racket swinging practice without targets) and hitting (footwork and stroke shuttlecock) actions, whereas the directions were divided into directional and non-directional. Two-way repeated measures ANOVA with the LSD correction was used to compare the differences among the four conditions. The significance level was set to = 0.05. Results shown that, at the peak of torque, the ankle plantar flexion of the non-directional shadow (p < 0.05) were greater than that of directional shadow (p < 0.05); meantime, ankle torque change of non-directional shadow (p < 0.05) and directional hitting (p < 0.05) was lower than that of non-directional hitting, but the non-directional hitting was larger compared to non-directional shadow (p < 0.05) at the maximum vertical GRF. The hip extension at peak of torque of directional hitting were larger than that of non-directional shadow (p < 0.05). The shadow actions hip flexion angle was larger than that of directional hitting at initial contact, but the non-directional hitting hip abduction was has the significant difference among all the conditioning. The hip flexion angle of non-directional shadow was larger than that of directional hitting (p < 0.05), the hip abduction angle of the non-directional hitting was greater than that of non-directional shadow (p < 0.05) at the peak VGRF. Elite badminton players execute different training movements; the joint stiffness was in the same state. In the hitting actions has greater ankle and hip joint torque than shadow actions. The badminton player was change joint range of motion to adjust lower limbs stiffness.
羽毛球运动中常出现非典型动作和击球动作；因此，为了便于快速击打羽毛球，发展了许多特殊的脚步动作方法，包括快速转身、跳跃和快速改变方向的动作。研究表明，大多数羽毛球运动损伤发生在运动员的下肢关节。本研究旨在探讨反手侧跳杀和落地时击球动作和意外击球方向对落地力学的影响，分析三个下肢关节的关节刚度和扭矩变化。招募了 16 名羽毛球运动员。同时使用 Vicon Motion System（300Hz）、Kistler 力台（1500Hz）和 Vicon Nexus 版本 1.8.5 软件采集反手侧跳杀脚动作的运动学和动力学参数。挥拍动作分为两种情况，即影子（无目标的脚法和球拍挥拍练习）和击球（脚法和击球）动作，而方向分为定向和非定向。采用双向重复测量方差分析（LSD 校正）比较四种情况之间的差异。显著性水平设置为 = 0.05。结果表明，在扭矩峰值时，非定向影子（p < 0.05）的踝关节跖屈大于定向影子（p < 0.05）；同时，非定向影子（p < 0.05）和定向击球（p < 0.05）的踝关节扭矩变化低于非定向击球，但非定向击球大于非定向影子（p < 0.05）在最大垂直 GRF 时。定向击球的髋关节伸展在扭矩峰值时大于非定向影子（p < 0.05）。初始接触时，定向击球的髋关节屈肌角度大于非定向影子，但非定向击球的髋关节外展具有显著差异。非定向影子的髋关节屈肌角度大于定向击球（p < 0.05），非定向击球的髋关节外展角度大于非定向影子（p < 0.05）在最大 VGRF 时。优秀的羽毛球运动员执行不同的训练动作；关节刚度处于同一状态。在击球动作中，踝关节和髋关节的扭矩大于影子动作。羽毛球运动员改变关节运动范围以调整下肢刚度。
