Effects of ankle joint biomechanics and foot postures on Achilles tendon force during running through a simulation study.

IF 2 3区医学 Q3 ENGINEERING, BIOMEDICAL

Sports Biomechanics Pub Date : 2025-05-30 DOI:10.1080/14763141.2025.2511758

Tomoya Takabayashi, Mutsuaki Edama, Takuma Inai, Masayoshi Kubo

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Abstract

Achilles tendinopathy is a prevalent injury observed among runners. Achilles tendon force (ATF) and differences in foot posture are considered factors in the occurrence of Achilles tendinopathy. This study was conducted using computer simulations. The simulation ranges were determined for the ankle joint angle (-25° to + 25°) and plantarflexion moment (0-160 Nm) at variable running speeds using a public dataset. The ankle angle was used to compute the Achilles tendon moment arm. Moment arms specific to the normal foot, pes cavus, and pes planus were calculated using radiographs from a previous study. Finally, the plantarflexion moment was divided into moment arms to obtain the ATF. For all foot postures, the ATF increased as the ankle dorsiflexion angle and plantarflexion moment increased. At most ankle angles, the ATF was found to be higher value in the order of pes cavus, normal foot, and pes planus. Increasing dorsiflexion angles and plantarflexion moments during running may lead to the occurrence or worsening of Achilles tendon tendinopathy. Additionally, individuals with pes cavus are more likely to develop Achilles tendinopathy than those with other foot postures.

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通过模拟研究踝关节生物力学和足部姿势对跑步时跟腱力的影响。

跟腱病是跑步者中常见的损伤。跟腱力（ATF）和足部姿势的差异被认为是发生跟腱病的因素。这项研究是用计算机模拟进行的。使用公共数据集确定了在可变跑步速度下的踝关节角度（-25°至+ 25°）和跖屈力矩（0-160 Nm）的模拟范围。用踝关节角度计算跟腱力臂。使用先前研究的x线片计算正常足、足弓足和平足特有的力矩臂。最后，将跖屈力矩分成力臂，得到ATF。对于所有足部姿势，ATF随着踝关节背屈角度和跖屈力矩的增加而增加。在大多数踝关节角度，ATF值依次为足弓、正常足和平足。跑步时背屈角度和跖屈时刻的增加可能导致跟腱病变的发生或恶化。此外，与其他足部姿势的人相比，有足弓足的人更容易患跟腱病。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sports Biomechanics 医学-工程：生物医学

CiteScore

5.70

自引率

9.10%

发文量

135

审稿时长

>12 weeks

期刊介绍： Sports Biomechanics is the Thomson Reuters listed scientific journal of the International Society of Biomechanics in Sports (ISBS). The journal sets out to generate knowledge to improve human performance and reduce the incidence of injury, and to communicate this knowledge to scientists, coaches, clinicians, teachers, and participants. The target performance realms include not only the conventional areas of sports and exercise, but also fundamental motor skills and other highly specialized human movements such as dance (both sport and artistic). Sports Biomechanics is unique in its emphasis on a broad biomechanical spectrum of human performance including, but not limited to, technique, skill acquisition, training, strength and conditioning, exercise, coaching, teaching, equipment, modeling and simulation, measurement, and injury prevention and rehabilitation. As well as maintaining scientific rigour, there is a strong editorial emphasis on ''reader friendliness''. By emphasising the practical implications and applications of research, the journal seeks to benefit practitioners directly. Sports Biomechanics publishes papers in four sections: Original Research, Reviews, Teaching, and Methods and Theoretical Perspectives.