增加着地时足外展角度可降低慢性踝关节不稳者内翻损伤的风险  

Increasing toe-out angle during drop-landing can diminish risk of inversion injuries among individuals with chronic ankle instability

作　　者：朱晓雪 赵琼秋 张藤 王丹 邱继宏 宋祺鹏[2] 沈培鑫 Zhu Xiaoxue;Zhao Qiongqiu;Zhang Teng;Wang Dan;Qiu Jihong;Song Qipeng;Shen Peixin(School of Graduate Education,Shandong Sport University,Jinan 250102,Shandong Province,China;School of Sports and Health,Shandong Sport University,Jinan 250102,Shandong Province,China;School of Competitive Sports,Shanghai University of Sport,Shanghai 200438,China;School of Sports and Health,Shanghai University of Sport,Shanghai 200438,China)

机构地区：[1]山东体育学院研究生教育学院,山东省济南市250102 [2]山东体育学院运动与健康学院,山东省济南市250102 [3]上海体育大学竞技运动学院,上海市200438 [4]上海体育大学运动健康学院,上海市200438

出　　处：《中国组织工程研究》2025年第9期1827-1833,共7页Chinese Journal of Tissue Engineering Research

摘　　要：背景:慢性踝关节不稳者在着地时易发生踝关节内翻扭伤,适度增大着地时足外展角度有助于减少踝关节内翻扭伤的发生,但尚无研究直接论证。目的:探讨着地时增加足外展角度对有无慢性踝关节不稳者着地过程中踝内翻角度、角度峰值时刻及角速度峰值的影响。方法:共招募了60名受试者,其中慢性踝关节不稳者30名,非慢性踝关节不稳者30名。使用模拟扭伤装置进行下落跳测试,该装置中的活动平台可向前翻转24°、向内侧翻转15°,从而模拟踝关节内翻扭伤时的足部位置。受试者需要在两种着地状态下进行下落跳测试,即自然着地和外展着地,后者的足外展角度更大,约为前者的150%以上。使用12摄像头三维红外动作捕捉系统记录运动学数据,采用双因素重复测量方差分析和Spearman相关分析进行数据分析。结果与结论:①下落跳时的内翻角度峰值(P<0.001,η^(2)p=0.270)、内翻角速度峰值(P=0.015,η^(2)p=0.098)和内翻角度峰值时刻(P<0.001,η^(2)p=0.260)均存在显著的状态主效应;内翻角速度峰值存在显著的组别主效应(P=0.029,η^(2)p=0.080);②慢性踝关节不稳组与非慢性踝关节不稳组受试者着地时的足外展角度与踝内翻角度峰值(P=0.021,r=-0.310;P=0.042,r=-0.278)、内翻角度峰值时刻(P=0.018,r=-0.312;P=0.021,r=-0.309)均存在显著的负相关关系;慢性踝关节不稳组受试者着地时的足外展角度与内翻角速度峰值(P=0.021,r=-0.312)之间也存在显著的负相关关系;③提示增加着地时的足外展角度可以减小慢性踝关节不稳及非慢性踝关节不稳人群着地过程中的内翻角度峰值、内翻角速度峰值,提前内翻角度峰值时刻,从而降低踝内翻扭伤的风险。BACKGROUND:Individuals with chronic ankle instability are prone to inversion ankle sprains during landing.Moderately increasing the foot toe-out angle during landing may reduce the occurrence of inversion ankle sprains,but no studies have directly demonstrated this effect.OBJECTIVE:To explore the effect of increased toe-out angle during landing on the peak inversion angle,peak angular velocity,and the time to peak inversion among individuals with and without chronic ankle instability.METHODS:A total of 60 participants were recruited for this study,including 30 individuals with chronic ankle instability and 30 without chronic ankle instability.The study utilized a simulated sprain apparatus for drop-landing tests,featuring a platform that could tilt forward by 24°and inward by 15°,thus simulating the foot position during an ankle inversion sprain.Participants were required to perform drop-landing tests under two landing conditions:natural landing and toe-out landing,with the latter involving a greater foot toe-out angle,over 150%more than the former.Kinematic data of participants were recorded using a 12-camera three-dimensional motion capture system.Data analysis was conducted using two-way repeated measures analysis of variance and Spearman correlation analysis.RESULTS AND CONCLUSION:(1)Significant main effects of condition were found for peak inversion angle during drop-landing(P<0.001,η^(2)p=0.270),peak inversion velocity(P=0.015,η^(2)p=0.098),and peak inversion time(P<0.001,η^(2)p=0.260);a significant main effect of group was found for peak inversion velocity(P=0.029,η^(2)p=0.080).(2)There were significant negative correlations between the foot toe-out angle at landing and the peak ankle inversion angle(P=0.021,r=-0.310;P=0.042,r=-0.278)as well as the peak inversion time(P=0.018,r=-0.312;P=0.021,r=-0.309)in both chronic ankle instability and non-chronic ankle instability groups.Moreover,a significant negative correlation was also found between the foot toe-out angle and peak inversion velocity in the ch

关 键 词：慢性踝关节不稳 踝关节扭伤 着地 内翻角度 足外展角度 

分 类 号：R459.9[医药卫生—治疗学] R318[医药卫生—临床医学] G804.6[文化科学—运动人体科学]