Lower extremity injury in female basketball players is related to a large difference in peak eversion torque between barefoot and shod conditions  

女篮运动员下肢损伤情况同赤脚与穿鞋状态下最大翻转力矩差别高度相关(英文)

作　　者：Jennifer M.Yentes Max J.Kurz Nicholas Stergiou 

机构地区：[1]Nebraska Biomechanics Core Facility,Department of Health,Physical Education and Recreation.University of Nebraska at Omaha [2]Munroe-Meyer Institute.Department of Physical Therapy,University of Nebraska Medical Center [3]College of Public Health,Department of Environmental Health,Occupational Health and Toxicology,University of Nebraska Medical Center

出　　处：《Journal of Sport and Health Science》2014年第3期227-232,共6页运动与健康科学（英文）

摘　　要：Background： The majority of injuries reported in female basketball players are ankle sprains and mechanisms leading to injury have been debated. Investigations into muscular imbalances in barefoot versus shod conditions and their relationship with injury severity have not been performed. The purpose of this study was to investigate the effects of wearing athletic shoes on muscular strength and its relationship to lower extremity injuries, specifically female basketball players due to the high incidence of ankle injuries in this population. Methods： During pre-season, 11 female collegiate basketball players underwent inversion and eversion muscle strength testing using an iso- kinetic dynamometer in both a barefoot and shod conditions. The difference between conditions was calculated for inversion and eversion peak torque, time to peak torque as well as eversion-to-inversion peak torque percent strength ratio for both conditions. Lower extremity injuries were documented and ranked in severity. The ranked difference between barefoot and shod conditions for peak torque and time to peak torque as well as percent strength ratio was correlated with injury ranking using a Spearman rho correlation （p） with an a level of 0.05. Results： The ranked differences in barefoot and shod for peak eversion and inversion torque at 120°/s were correlated with their injury ranking. Ranking of the athletes based on the severity of injuries that were sustained during the season was found to have a strong, positive relationship with the difference in peak eversion torque between barefoot and shod （p = 0.78; p = 0.02）. Conclusion： It is possible that a large discrepancy between strength in barefoot and shod conditions can predispose an athlete to injury. Nar- rowing the difference in peak eversion torque between barefoot and shod could decrease propensity to injury. Future work should investigate the effect of restoration of muscular strength during barefoot and shod exercise on injury rates.背景:现有文献报告的女子篮球运动员受伤大多是踝关节扭伤,其损伤机制存在争议。目前尚无关于赤脚或穿鞋状态下肌肉不平衡及其与损伤严重程度之间关系的调查。本研究的目的是调查穿运动鞋对肌肉力量的作用以及与下肢损伤的关系,尤其针对女篮运动员,因为这一群体踝关节损伤高发。方法:11名大学女子篮球运动员在赛季前接受肌肉内翻及外翻力量测试,即在赤脚和穿鞋状态下,使用等速测力计进行测量。在不同条件下测量倒置与翻转的峰值扭矩、达到峰值的时间以及两种条件下从翻转到峰值的强度百分比。在赛季中记录她们的下肢损伤并按严重程度排名。用斯皮尔曼Rho相关系数(ρ)(a水平0.05)测定赤脚与穿鞋状态的峰值扭矩、达到峰值的时间以及强度百分比等级差别与损伤等级之间的关联。结果:受试者在120°/s状态下赤脚与穿鞋时内翻及外翻扭矩峰值的等级差别与其受伤程度等级相关。赛季中持续的运动员受伤程度等级与其赤脚和穿鞋时外翻扭矩峰值成强烈正相关(ρ=0.78,p=0.02)。结论赤脚与穿鞋状态下肌肉平衡差异大很可能导致运动员受伤;缩小赤脚与穿鞋状态下翻转力矩的差异能减小受伤倾向。今后的研究应关注赤脚与穿鞋状态下恢复肌肉力量的效果。

关 键 词：Ankle sprain Isoklnetic dynamometer Muscular imbalance Strength 

分 类 号：G841[文化科学—体育训练]