包裹横足弓可以提高跑步的经济性。

IF 2.8 2区 生物学 Q2 BIOLOGY
Hui Tang, Owen N Beck
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引用次数: 0

摘要

与现存的类人猿相比,人类有更多弯曲的横足弓。通过跨轴耦合,更大的横向足弓曲率使整个足部变硬。由于进化的人类足弓力学的功能意义,我们研究了紧密包裹参与者的横向足弓,这突出了横向和内侧纵向足弓的进化特征,是否有助于两足奔跑。总体而言,包裹参与者的横弓强化了横弓高度和曲率的演化特征(d≥1.04,p
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wrapping the transverse foot arch improves running economy.

Humans have more curved transverse foot arches than extant apes. Through cross-axis coupling, greater transverse foot arch curvature stiffens the overall foot. Due to the functional implications of evolved human foot arch mechanics, we investigated whether tightly wrapping participant transverse foot arches, which accentuates evolved features of transverse and medial longitudinal foot arches, facilitates bipedal running. Overall, wrapping participant transverse arches accentuated the evolved characteristics of transverse arch height and curvature (both d≥1.04, p<0.001), as well as longitudinal arch height and stiffness (both d≥0.64, p≤0.022). Running with wrapped versus bare transverse arches reduced participant leg muscle activation (d=0.57, p=0.043) and whole-body metabolic power (d=0.66, p=0.018). Mechanistically, running with wrapped versus bare transverse foot arches increased peak ankle gear ratio (d=0.60, p=0.031), enabling user ankles to produce mechanical power (avg and peak d≤0.07, p≥0.179) using slower angular velocities (d=0.57, p=0.038). Notably, stiffening the medial longitudinal foot arch did not increase its mechanical energy recycling during running (d=0.03, p=0.914). Therefore, wrapping the transverse foot arch facilitates running by enabling leg muscles to operate more economically. Our findings motivate the notion that the evolved curvature of human transverse foot arches may have been naturally selected to increase overall foot stiffness and facilitate bipedal running.

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来源期刊
CiteScore
5.50
自引率
10.70%
发文量
494
审稿时长
1 months
期刊介绍: Journal of Experimental Biology is the leading primary research journal in comparative physiology and publishes papers on the form and function of living organisms at all levels of biological organisation, from the molecular and subcellular to the integrated whole animal.
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