青少年前交叉韧带重建运动员单腿垂直跳跃表现与生物力学的非对称性
简介
本研究对19例ACL重建术后青少年运动员（平均16.3岁，术后9.2个月）行三维运动分析，比较单腿垂直跳跃中患侧与健侧的表现及生物力学差异。结果显示患侧跳跃高度显著低于健侧（LSI中位数92.3%），且即使在跳跃高度对称（LSI≥90%）的患者中，膝踝屈曲角度、膝屈曲力矩及功率吸收等生物力学指标仍存在明显不对称。提示仅依靠功能对称指标评估重返运动可能不足，应…
英文摘要
OBJECTIVE: To assess single-leg vertical hop (SLVH) symmetry in adolescent athletes with anterior cruciate ligament reconstruction (ACLR), comparing injured to uninjured limbs. DESIGN: Retrospective cohort study. METHODS: Nineteen patients (15 female; mean age=16.3 years; mean=9.2 months post-ACLR) underwent three-dimensional motion analysis during SLVH. Hop performance and biomechanics were compared between ACLR and contralateral limbs using Wilcoxon signed rank tests. RESULTS: Hop height was significantly lower for the ACLR limb compared with the contralateral side (P = .028), with a median limb symmetry index (LSI) of 92.3%. Biomechanical variables demonstrated asymmetry, including peak knee and ankle flexion angles, peak knee flexion moment, total power generation, total power absorption, and percent power absorption contributed by the knee (all P ≤ .037) even in participants who achieved hop height symmetry (LSIheight ≥90%). CONCLUSION: Adolescent athletes in late-stage rehabilitation post-ACLR had interlimb asymmetry of biomechanics during the SLVH, indicating deficiencies of their ACLR limb and decreased readiness for return to sport. JOSPT Open 2026;4(3):321-327. Epub 18 May 2026. doi:10.2519/josptopen.2026.0199.