Leong Hin Fong, Lam Wing-Kai, Ng Wei Xuan, Kong Pui Wah
1 Nanyang Technological University.
2 Li Ning Sports Science Research Center.
J Appl Biomech. 2018 Aug 1;34(4):284-290. doi: 10.1123/jab.2017-0120. Epub 2018 Jul 3.
This study aimed to investigate the effects of varying midsole hardness on center of pressure (COP) and perceived stability during basketball-specific tasks, as well as the correlation between COP and perception measurements. A total of 20 male basketball players performed 45° cutting and layup while wearing basketball shoes with soft and hard midsoles. COP trajectories were obtained from the Pedar insole system. Stability perceptions at the forefoot and rearfoot were assessed using 150-mm visual analogue scales. Results indicated greater COP mediolateral deviations in soft midsole compared with hard midsole during layup (soft: 16.6 [4.7] mm, hard: 15.8 [4.6] mm, P = .03) but not 45° cutting (soft: 15.7 [5.9] mm, hard: 15.8 [5.6] mm, P = .60). While 16 out of 20 participants preferred soft midsole, no significant difference in visual analogue scale ratings was found between shoes for both tested movements. There was no significant correlation between COP and perceived stability during layup or 45° cutting. In conclusion, midsole hardness of basketball shoes did not consistently affect mediolateral stability of the foot during 45° cutting and layup. Subjective perception alone cannot be used to indicate mediolateral deviation of the foot when executing basketball-specific maneuvers.
本研究旨在调查不同中底硬度对篮球特定任务期间压力中心（COP）和感知稳定性的影响，以及COP与感知测量之间的相关性。共有20名男性篮球运动员穿着中底软和硬的篮球鞋进行45°切入和上篮动作。通过Pedar鞋垫系统获取COP轨迹。使用150毫米视觉模拟量表评估前脚掌和后脚掌的稳定性感知。结果表明，上篮时软中底的COP中外侧偏差大于硬中底（软：16.6[4.7]毫米，硬：15.8[4.6]毫米，P = 0.03），但45°切入时并非如此（软：15.7[5.9]毫米，硬：15.8[5.6]毫米，P = 0.60）。虽然20名参与者中有16人更喜欢软中底，但在两种测试动作中，两种鞋子的视觉模拟量表评分没有显著差异。在进行上篮或45°切入时，COP与感知稳定性之间没有显著相关性。总之，篮球鞋的中底硬度在45°切入和上篮过程中并未始终如一地影响足部的中外侧稳定性。在执行篮球特定动作时，不能仅通过主观感知来表明足部的中外侧偏差。
