The effect of minimal shoes on arch structure and intrinsic foot muscle strength  

极简鞋对足弓结构和足内附肌力量的作用（英文）

作　　者：Elizabeth E.Miller Katherine K.Whitcome Daniel E.Lieberman Heather L.Norton Rachael E.Dyer 

机构地区：[1]Department of Anthropology,University of Cincinnati [2]Department of Human Evolutionary Biology,Harvard University [3]Department of Biomedical,Chemical and Environmental Engineering,University of Cincinnati

出　　处：《Journal of Sport and Health Science》2014年第2期74-85,152+156,共12页运动与健康科学（英文）

基　　金：supported by the Charles Phelps Taft Research Center at the University of Cincinnati

摘　　要：Background:This prospective study explored the effects of endurance running(ER) in minimal versus standard running shoes on the foot’s superficial layer intrinsic muscles and the function of the longitudinal arch.Our hypothesis was that running in minimal shoes would cause hypertrophy in these muscles and lead to higher,stronger,stiffer arches.Methods:The hypothesis was tested using a sample of 33 healthy runners randomized into two groups,a control group shod in traditional running footwear and an experimental group shod in minimal support footwear,whose feet were scanned in an MRI before and after a 12-week training regime.Running kinematics as well as arch stiffness and height were also assessed before and after the treatment period.Results:Analysis of anatomical cross-sectional areas and muscle volumes indicate that the flexor digitomm brevis muscle became larger in both groups by 11%and 21%,respectively,but only the minimally shod runners had significant areal and volumetric increases of the abductor digiti minimi of 18%and 22%,respectively,and significantly increased longitudinal arch stiffness(60%).Conclusion:These results suggest that endurance running in minimal support footwear with 4 mm offset or less makes greater use of the springlike function of the longitudinal arch,thus leading to greater demands on the intrinsic muscles that support the arch,thereby strengthening the foot.背景:这项前瞻性研究探讨了耐力跑时穿极简鞋和传统跑鞋各自对浅层足内附肌和足纵弓功能的影响。本研究假设穿极简鞋跑步会促使浅层足内附肌肥厚,并导致足弓更高、更强、更硬。方法:将33名健康跑步者随机分为两组:对照组穿传统跑鞋,试验组穿极简跑鞋。用磁共振成像(MRI)在为期12周的训练前后对受试者足部进行扫描,评估训练前后的跑步动力学数据以及足弓高度和硬度。结果:对受试者解剖横截面积和肌肉体积的分析表明,对照组与试验组的趾短屈肌分别增大了11%和21%;试验组小趾展肌的面积和体积分别增长了18%和22%,其纵弓硬度也显著提高(60%)。结论:持久耐力跑时穿4mm或厚度更小的极简鞋需要更多发挥纵弓的弹力功能,因而对支撑足弓的内附肌提出更高要求,从而使足部更强健。

关 键 词：Endurance running Foot strength Foot strike Intrinsic foot muscles Longitudinal arch Minimal support footwear 

分 类 号：G804.6[文化科学—运动人体科学] G822[文化科学—体育学]