利用躯干运动学预测 ACL 重建后大学生运动员双足跳落地时的动力学不对称性。
Using trunk kinematics to predict kinetic asymmetries during double-leg jump-landings in collegiate athletes following anterior cruciate ligament reconstruction.
机构信息
Division of Kinesiology and Health, University of Wyoming, Laramie, WY, USA.
Department of Sports Medicine, University of Wyoming, Laramie, USA.
出版信息
Gait Posture. 2023 May;102:80-85. doi: 10.1016/j.gaitpost.2023.03.003. Epub 2023 Mar 11.
BACKGROUND
Bilateral vertical ground reaction force (VGRF) and knee extension moment asymmetries are commonly observed during jumping and landing tasks following anterior cruciate ligament (ACL) reconstructions (ACLR) in collegiate athletes. Kinetic asymmetries during landings are associated with increased ACL re-injury risk. Efforts have been made to predict bilateral kinetic asymmetries using trunk kinematics during squats but not during jump-landings.
RESEARCH QUESTION
To determine the correlations between trunk kinematics (medial-lateral shoulder positions, medial-lateral hip positions, and lateral trunk bending angles) and bilateral kinetic asymmetries (VGRF and knee extension moments) during double-leg jump-landings in collegiate athletes following ACLR.
METHODS
Fifteen National Collegiate Athletic Association Division I athletes who had ACLR in the past 24 months participated. Eleven of them performed two assessments over the study period for a total of 26 assessments for data analyses. Athletes performed three double-leg countermovement jumps. Kinematics and kinetics data were collected. Medial-lateral shoulder and hip positions relative to ankle positions, lateral trunk bending angles, and kinetic asymmetries were calculated during the jumping (the lowest hip position until takeoff) and landing (the first 100 ms after initial contact) phases.
RESULTS
Medial-lateral shoulder positions correlated with VGRF (r = 0.63, p < 0.001) and knee moment asymmetries (r = 0.53, p = 0.006) in the jumping phase. Medial-lateral hip positions correlated with VGRF (r = 0.61, p < 0.001; r = 0.52, p = 0.006) and knee moment asymmetries (r = 0.55, p = 0.004; r = 0.61, p < 0.001) in both jumping and landing phases.
SIGNIFICANCE
Medial-lateral hip positions correlated with kinetic asymmetries during double-leg jump-landings in collegiate athletes following ACLR. A 2D assessment using a standard video camera might be used as a low-cost and clinically applicable tool to assess bilateral kinetic asymmetries by quantifying medial-lateral hip positions during jump-landings following ACLR.
背景
在 ACLR 后的大学生运动员进行跳跃和着陆任务时，经常观察到双侧垂直地面反作用力（VGRF）和膝关节伸展力矩的不对称性。着陆时的动力学不对称性与 ACL 再受伤的风险增加有关。已经努力使用深蹲时的躯干运动学来预测双侧动力学不对称性，但不能用于跳跃着陆。
研究问题
确定 ACLR 后大学生运动员双侧跳跃着陆时的躯干运动学（肩的内外侧位置、髋关节的内外侧位置和躯干的外侧弯曲角度）与双侧动力学不对称性（VGRF 和膝关节伸展力矩）之间的相关性。
方法
15 名过去 24 个月接受过 ACLR 的 NCAA 一级运动员参加了研究。其中 11 人在研究期间进行了两次评估，总共进行了 26 次数据分析评估。运动员进行了三次双腿反向跳跃。收集了运动学和动力学数据。在跳跃（从最低的髋关节位置到起跳）和着陆（初次接触后最初的 100 毫秒）阶段，计算了相对于踝关节位置的肩和髋关节的内外侧位置、躯干的外侧弯曲角度以及动力学的不对称性。
结果
跳跃阶段，肩的内外侧位置与 VGRF（r=0.63，p<0.001）和膝关节力矩不对称性（r=0.53，p=0.006）相关。髋关节的内外侧位置与 VGRF（r=0.61，p<0.001；r=0.52，p=0.006）和膝关节力矩不对称性（r=0.55，p=0.004；r=0.61，p<0.001）相关，在跳跃和着陆阶段均相关。
意义
在 ACLR 后的大学生运动员进行双侧跳跃着陆时，髋关节的内外侧位置与动力学的不对称性相关。使用标准摄像机进行的 2D 评估可能被用作一种低成本且临床适用的工具，通过在 ACLR 后跳跃着陆时量化髋关节的内外侧位置来评估双侧动力学的不对称性。
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