运动鞋的扭转刚度在防止损伤和提高运动性能中起着至关重要的作用。然而,缺乏对羽毛球鞋扭转刚度的生物力学影响的研究。本研究旨在综合考察羽毛球鞋三种不同水平的扭转刚度对其生物力学特性的影响,运动表现,和羽毛球运动员受伤的风险。15名男性球员,年龄22.8±1.96岁,参与研究,执行羽毛球特定任务,包括正手清晰行程[左脚(FCL)和右脚(FCR)],45度侧台阶切割(45C),和连续垂直跳跃(CVJ)。这些任务是穿着用肖氏D硬度50、60和70(称为50D,60D,70D,分别)。主要生物力学参数包括踝关节,膝盖,和MTP关节运动学,踝关节和膝关节力矩,峰值地面反作用力,关节运动范围(ROM),和站立时间。单向重复测量方差分析用于正态分布数据,弗里德曼检验用于非正态分布数据。在45C任务期间,70D鞋表现出最高的踝关节背屈和最低的踝关节内翻峰值角。与50D和70D鞋相比,60D鞋显示显著较低的膝关节外展角和冠状运动。扭转刚度的增加减少了FCR任务中的站立时间。在前后和内外侧地面反作用力(GRF)中没有观察到显着差异。然而,在执行FCR任务时,70D鞋的垂直GRF高于50D鞋,特别是在70%-75%的立场。这项研究的结果揭示了扭转刚度在羽毛球任务期间降低损伤风险和优化性能的重要作用。这表明具有中等水平的刚度(60D)的鞋可以提供柔韧性和稳定性之间的有益平衡。这些发现可为今后羽毛球鞋的研发提供参考。需要进一步的研究来探索改变刚度的长期影响,考虑到运动水平和足部形态等因素,了解扭转刚度对羽毛球特定任务中运动生物力学和损伤发生率的影响。
Torsional stiffness of athletic
footwear plays a crucial role in preventing injury and improving sports performance. Yet, there is a lack of research focused on the biomechanical effect of torsional stiffness in badminton shoes. This study aimed to comprehensively investigate the influence of three different levels of torsional stiffness in badminton shoes on biomechanical characteristics, sports performance, and injury risk in badminton players. Fifteen male players, aged 22.8 ± 1.96 years, participated in the study, performing badminton-specific tasks, including forehand clear stroke [left foot (FCL) and right foot (FCR)], 45-degree sidestep cutting (45C), and consecutive vertical jumps (CVJ). The tasks were conducted wearing badminton shoes of torsional stiffness measured with Shore D hardness 50, 60, and 70 (referred to as 50D, 60D, and 70D, respectively). The primary biomechanical parameters included ankle, knee, and MTP joint kinematics, ankle and knee joint moments, peak ground reaction forces, joint range of motion (ROM), and stance time. A one-way repeated measures ANOVA was employed for normally distributed data and Friedman tests for non-normally distributed data. The 70D shoe exhibited the highest ankle dorsiflexion and lowest ankle inversion peak angles during 45C task. The 60D shoe showed significantly lower knee abduction angle and coronal motions compared to the 50D and 70D shoes. Increased torsional stiffness reduced stance time in the FCR task. No significant differences were observed in anterior-posterior and medial-lateral ground reaction forces (GRF). However, the 70D shoe demonstrated higher vertical GRF than the 50D shoe while performing the FCR task, particularly during 70% - 75% of stance. Findings from this study revealed the significant role of torsional stiffness in reducing injury risk and optimizing performance during badminton tasks, indicating that shoes with an intermediate level of stiffness (60D) could provide a beneficial balance between flexibility and stability. These findings may provide practical references in guiding future badminton shoe research and development. Further research is necessary to explore the long-term effects of altering stiffness, considering factors such as athletic levels and foot morphology, to understand of the influence of torsional stiffness on motion biomechanics and injury prevalence in badminton-specific tasks.