The effects of ankle dorsiflexor fatigue on lower limb biomechanics during badminton forward forehand and backhand lunge

作者：Jianhua Tong, Zhenghui Lu, Xuanzhen Cen, Chaoyi Chen, Ukadike C. Ugbolue, Yaodong Gu · 发表于：Frontiers in Bioengineering and Biotechnology · 年份：2023 · DOI：10.3389/fbioe.2023.1013100 · 被引用次数：12 · 研究领域：Lower Extremity Biomechanics and Pathologies、Sports injuries and prevention、Shoulder Injury and Treatment

Background: Local muscle fatigue may have an adverse effect on the biomechanics of the lunge movement and athletic performance. This study analyzed the biomechanical indicators of the forward lunge in badminton players before and after fatigue of the ankle dorsiflexors. Methods: Using the isometric muscular strength testing system, 15 badminton players underwent an ankle dorsiflexor fatigue test. Before and after the fatigue experiment, five lunges were done in both the forehand forward (FH) and backhand forward (BH) directions, five in each direction. A Vicon motion capture system and an AMTI force measuring station were used to record lower limb kinematic and ground reaction force (GRF). Pre-fatigue and post-fatigue variability were determined using paired-samples t-tests, Wilcoxon signed rank test, and Statistical Non-parametric Mapping (SNPM). Result: The results showed that after fatigue, the peak angle of ankle dorsiflexion was significantly reduced ( p = 0.034), the range of motion (ROM) of the ankle sagittal plane ( p = 0.000) and peak angle of ankle plantarflexion ( p = 0.001) was significantly increased after forehand landing. After fatigue, ankle inversion was significantly increased after forehand and backhand landings (FH: p = 0.033; BH: p = 0.015). After fatigue, peak knee flexion angles increased significantly (FH: Max: p = 0.000, Min: p = 0.000; BH: Max: p = 0.017, Min: p = 0.037) during forehand and backhand landings and ROM in knee flexion and extension incr...