Mo Shiwei, Lu Feifei, Li Chuhao, Zhao Huan
Laboratory of Human Kinesiology and Performance, School of Physical Education, Shenzhen University, Shenzhen, Guangdong, China.
School of Fashion and Textiles, Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China.
Front Bioeng Biotechnol. 2024 Aug 13;12:1427418. doi: 10.3389/fbioe.2024.1427418. eCollection 2024.
Foot morphology and arch integrity do not remain constant during a running bout. Previous studies have reported inconsistent changes in foot sizes and arch parameters and this discrepancy may be related to the variation in their test duration, e.g., 15-min treadmill run vs. 30 KM trial. Hence, this study sought to evaluate the change in foot morphology, arch integrity and bilateral symmetry after a 10 KM run among 19 male recreational runners. Before and after the run, a portable foot scanner was used to capture the 3-dimensional foot images and measure foot dimensions in both weight-bearing and non-weight-bearing conditions. Foot arch integrity was quantified by arch height ratio, arch height index, and arch stiffness index (ASI). Bilateral symmetry was evaluated by calculating the symmetry index. Increased foot length ( = 0.007; = 0.18) and decreased ball girth ( = 0.038; = 0.11) were demonstrated following the run with absolute differences of less than 2 mm. Navicular height, dorsum height, arch height ratio and arch height index significantly decreased after the run ( < 0.001; ≥0.30) whereas ASI increased ( < 0.001, = 0.33) and navicular height drop reduced ( < 0.001, = 0.37). Significances of symmetry index were only demonstrated for navicular height ( = 0.019, effect size = 0.37) and arch height ratio ( = 0.019, effect size = 0.42). A few changes in foot morphology were detected but a reduction in foot arch height was demonstrated, which may give shoe manufacturers insights into shoe design. Male recreational runners were recommended to choose shoes with arch support for maintaining foot arch function during a 10 KM run.
在跑步过程中，足部形态和足弓完整性并非保持不变。先前的研究报告了足部尺寸和足弓参数的变化不一致，这种差异可能与测试持续时间的变化有关，例如，15分钟的跑步机跑步与30公里的试验。因此，本研究旨在评估19名男性休闲跑步者在10公里跑步后足部形态、足弓完整性和双侧对称性的变化。在跑步前后，使用便携式足部扫描仪采集三维足部图像，并测量负重和非负重条件下的足部尺寸。通过足弓高度比、足弓高度指数和足弓刚度指数（ASI）对足弓完整性进行量化。通过计算对称指数评估双侧对称性。跑步后足部长度增加（ = 0.007； = 0.18），球部周长减小（ = 0.038； = 0.11），绝对差异小于2毫米。跑步后舟骨高度、背侧高度、足弓高度比和足弓高度指数显著降低（ < 0.001； ≥0.30），而ASI增加（ < 0.001， = 0.33），舟骨高度下降减少（ < 0.001， = 0.37）。仅在舟骨高度（ = 0.019，效应大小 = 0.37）和足弓高度比（ = 0.019，效应大小 = 0.42）方面显示出对称指数的显著性。检测到足部形态有一些变化，但足弓高度降低，这可能为鞋类制造商提供鞋类设计方面的见解。建议男性休闲跑步者选择具有足弓支撑的鞋子，以在10公里跑步过程中维持足弓功能。
