Prelanding Knee Kinematics and Landing Kinetics During Single-Leg and Double-Leg Landings in Male and Female Recreational Athletes
Prelanding Knee Kinematics and Landing Kinetics During Single-Leg and Double-Leg Landings in Male and Female Recreational Athletes
复制标题
男性和女性休闲运动员单腿和双腿着陆时的着陆前膝关节运动学和着陆动力学
DOI：
10.1123/jab.2022-0147
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发表时间：
2023
影响因子：
1.4
通讯作者：
Dai, Boyi
中科院分区：
文献类型：
--
作者：
Li, Ling;Song, Yu;Jenkins, Maddy;Dai, Boyi
落地前的生物力学行为可能导致跳跃落地任务中前交叉韧带（ACL）损伤。本研究探讨男性和女性单腿和双腿著陆时，著陆前膝关节运动学和著陆地面反作用力（GRF）。参与者进行着陆的优势腿或双腿，而运动学和GRF数据收集。单腿着陆表现出更少的时间之间的预着陆最小膝关节屈曲和初始地面接触，降低预着陆和早期着陆膝关节屈曲角度和速度，并增加峰值垂直和后方GRF与双腿着陆。在双腿和单腿着陆过程中，着陆前膝关节屈曲速度和膝关节屈曲偏移的增加与峰值后GRF的降低相关。雄性和雌性之间未观察到显著差异。与双腿着地相比，单腿着地前膝关节运动学可能导致ACL损伤风险增加。鼓励未来的研究纳入预着陆膝关节力学，以了解ACL损伤机制并预测未来ACL损伤风险。需要研究增加预着地膝关节屈曲的可行性，以了解预着地运动学在降低ACL损伤风险中的潜在作用。
Biomechanical behavior prior to landing likely contributes to anterior cruciate ligament (ACL) injuries during jump-landing tasks. This study examined prelanding knee kinematics and landing ground reaction forces (GRFs) during single-leg and double-leg landings in males and females. Participants performed landings with the dominant leg or both legs while kinematic and GRF data were collected. Single-leg landings demonstrated less time between prelanding minimal knee flexion and initial ground contact, decreased prelanding and early-landing knee flexion angles and velocities, and increased peak vertical and posterior GRFs compared with double-leg landings. Increased prelanding knee flexion velocities and knee flexion excursion correlated with decreased peak posterior GRFs during both double-leg and single-leg landings. No significant differences were observed between males and females. Prelanding knee kinematics may contribute to the increased risk of ACL injuries in single-leg landings compared with double-leg landings. Future studies are encouraged to incorporate prelanding knee mechanics to understand ACL injury mechanisms and predict future ACL injury risks. Studies of the feasibility of increasing prelanding knee flexion are needed to understand the potential role of prelanding kinematics in decreasing ACL injury risk.