Redistribution of knee and ankle joint work with different midsole thicknesses in non-rearfoot strikers during running: A cross-sectional study

IF 0.8 4区 医学 Q4 BIOPHYSICS
Tomohiro Miyazaki, Takayuki Aimi, Yasuo Nakamura
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引用次数: 0

Abstract

Purpose To investigate the effects of midsole thickness on non-rearfoot strike runners’ redistributions of knee and ankle joint negative and positive work. Methods Fourteen healthy male runners wore minimalist, traditional, and maximalist shoes and ran in a straight line in each shoe in the laboratory at a speed of 15 km/h, with a ±5% difference being allowed. Whole-body kinematics and ground reaction forces were recorded, and the data of eleven non-rearfoot strikers were used for the analysis. Ankle and knee joint negative and positive work was calculated by integrating each joint's torque power. Friedman test was used for statistical comparisons. Results Minimalist shoes induced significantly greater ankle joint negative and positive work than in other shoes. Maximalist shoes induced significantly lower ankle joint positive work and greater knee joint negative work than in other shoes, and significantly greater knee joint positive work than in minimalist shoes. Conclusions Our results indicated that non-rearfoot strikers redistributed joint negative and positive work from the knee to the ankle when using minimalist shoes or from the ankle to the knee when using maximalist shoes. It is recommended that future research employs more rigorous study designs, such as randomised controlled trials and longitudinal studies, to provide a more accurate assessment of the effect of these shoes on injury rates.
非后脚着地者在跑步过程中不同中底厚度的膝关节和踝关节工作的再分配:一项横断面研究
目的探讨中底厚度对非后脚着地跑者膝关节和踝关节负功和正功再分配的影响。方法14名健康男性跑步者分别穿着极简、传统和极简三种跑鞋,在实验室以15 km/h的速度直线跑,误差为±5%。记录全身运动学和地面反作用力,并使用11名非后脚撞击者的数据进行分析。通过对各关节的扭矩功率积分计算踝关节和膝关节的负功和正功。采用Friedman检验进行统计比较。结果极简鞋对踝关节负功和正功的诱导明显大于其他鞋。与其他鞋相比,极简主义鞋显著降低了踝关节的正功,显著增加了膝关节的负功,显著增加了膝关节的正功。结论:非后脚撞击者在使用极简鞋时将关节负功和正功从膝盖重新分配到脚踝,而使用极简鞋时则从脚踝重新分配到膝盖。建议未来的研究采用更严格的研究设计,如随机对照试验和纵向研究,以提供更准确的评估这些鞋对受伤率的影响。
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来源期刊
Acta of bioengineering and biomechanics
Acta of bioengineering and biomechanics BIOPHYSICS-ENGINEERING, BIOMEDICAL
CiteScore
2.10
自引率
10.00%
发文量
0
期刊介绍: Acta of Bioengineering and Biomechanics is a platform allowing presentation of investigations results, exchange of ideas and experiences among researchers with technical and medical background. Papers published in Acta of Bioengineering and Biomechanics may cover a wide range of topics in biomechanics, including, but not limited to: Tissue Biomechanics, Orthopedic Biomechanics, Biomaterials, Sport Biomechanics.
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