Zhou Huiyu, Xu Datao, Quan Wenjing, Ugbolue Ukadike Chris, Gu Yaodong
Faculty of Sports Science, Ningbo University, Ningbo, China.
School of Health and Life Sciences, University of the West of Scotland, Paisley, United Kingdom.
Front Bioeng Biotechnol. 2024 Feb 8;12:1337540. doi: 10.3389/fbioe.2024.1337540. eCollection 2024.
The purpose of this study was to compare the changes in foot at different sole-ground contact angles during forefoot running. This study tried to help forefoot runners better control and improve their technical movements by comparing different sole-ground contact angles. A male participant of Chinese ethnicity was enlisted for the present study, with a recorded age of 25 years, a height of 183 cm, and a body weight of 80 kg. This study focused on forefoot strike patterns through FE analysis. It can be seen that the peak von Mises stress of M1-5 (Metatarsal) of (Contact angle: 9.54) is greater than that of (Contact angle: 7.58) and (Contact angle: 5.62) in the three cases. On the contrary, the peak von Mises stress of MC (Medial Cuneiform), IC (Intermediate Cuneiform), LC (Lateral Cuneiform), C (Cuboid), N (Navicular), T (Tarsal) in three different cases is opposite, and the peak von Mises stress of c is greater than that of a and b. The peak von Mises stress of b is between a and c. This study found that a reduced sole-ground contact angle may reduce metatarsal stress fractures. Further, a small sole-ground contact angle may not increase ankle joint injury risk during forefoot running. Hence, given the specialized nature of the running shoes designed for forefoot runners, it is plausible that this study may offer novel insights to guide their athletic pursuits.
本研究的目的是比较前脚掌跑步时不同鞋底与地面接触角度下足部的变化。本研究试图通过比较不同的鞋底与地面接触角度,帮助前脚掌跑步者更好地控制和改进他们的技术动作。本研究招募了一名25岁的华裔男性参与者,记录的身高为183厘米,体重为80千克。本研究通过有限元分析关注前脚掌着地模式。可以看出,在三种情况下,(接触角度:9.54)时M1 - 5(跖骨)的米塞斯应力峰值大于(接触角度:7.58)和(接触角度:5.62)时的情况。相反,在三种不同情况下,内侧楔骨(MC)、中间楔骨(IC)、外侧楔骨(LC)、骰骨(C)、舟骨(N)、跗骨(T)的米塞斯应力峰值情况相反,c的米塞斯应力峰值大于a和b的。b的米塞斯应力峰值在a和c之间。本研究发现,减小鞋底与地面的接触角度可能会降低跖骨应力性骨折的风险。此外,在前脚掌跑步时,较小的鞋底与地面接触角度可能不会增加踝关节受伤的风险。因此,鉴于为前脚掌跑步者设计的跑鞋的特殊性,本研究可能会为指导他们的运动追求提供新的见解,这是合理的。