比较模拟防守者和双重任务对有和没有前交叉韧带损伤的篮球运动员在侧切时下肢协调性和变异性的影响。

Comparing the effect of a simulated defender and dual-task on lower limb coordination and variability during a side-cut in basketball players with and without anterior cruciate ligament injury.

机构信息

Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran.

Ohio Musculoskeletal & Neurological Institute, Ohio University, Athens, OH, USA; Division of Athletic Training, School of Applied Health Sciences and Wellness, College of Health Sciences and Professions, Ohio University, Athens, OH, USA; Division of Physical Therapy, School of Rehabilitation and Communication Sciences, College of Health Sciences and Professions, Ohio University, Athens, OH, USA.

出版信息

J Biomech. 2022 Mar;133:110965. doi: 10.1016/j.jbiomech.2022.110965. Epub 2022 Jan 24.

Abstract

Anterior Cruciate Ligament (ACL) injuries commonly occur when attention is simultaneously on the environment (other players, objects) and maintaining neuromuscular control. Therefore, our purpose was to investigate lower-extremity coordination following ACLR during a run-to-cut with ecological validity to sport competition. Sixteen male basketball players with ACLR (20.8 ± 3.42 years, time since surgery: 9.5 ± 2.4 months) were contrasted with 16 healthy male control basketball players (21.3 ± 3.17 years) during a run-to-cut maneuver under two conditions: 1) standard, run and initiate a ∼40° side-cut and 2) simulated sport, run-to-cut with the presence of a defender and engaged in a dual-task to intercept a ball. Lower limb kinematics were used to calculate continuous relative phase metrics for evaluation of coordination pattern and variability. Independent t-test and effect size were used to evaluate the difference between the two groups and across condition via change score. The simulated sports cutting maneuver coordination patterns were significantly different between groups for hip-ankle, hip-knee, knee-knee, and knee-ankle coupling (p < .05). Only hip-knee coupling had a significant condition change score (p = .01) with ACLR increasing (51.8 ± 79.1%) and healthy controls (-16.04 ± 64.1%) decreasing hip flexion-extension and keen abduction-adduction coupling. There was no significant difference in normal cut coordination between groups. The addition of simulated sport visual attention and dual task motor planning during the run-to-cut might elicit different lower limb movement patterns in ACLR athletes compared to the healthy counterparts, potentially contributing to the elevated reinjury risk in those with ACLR history when returning to sport.

摘要

前交叉韧带(ACL)损伤通常发生在同时关注环境(其他球员、物体)和保持神经肌肉控制的时候。因此,我们的目的是在具有运动比赛生态有效性的情况下,研究 ACLR 后进行跑动-变向时下肢的协调情况。16 名 ACLR 的男性篮球运动员(20.8±3.42 岁,手术时间:9.5±2.4 个月)与 16 名健康男性篮球运动员对照组(21.3±3.17 岁)进行了对比,在两种情况下进行跑动-变向动作:1)标准,跑动并启动约 40°的侧变向;2)模拟运动,有防守者时跑动-变向,并进行双重任务以拦截球。下肢运动学用于计算连续相对相位指标,以评估协调模式和变异性。独立 t 检验和效应量用于通过变化分数评估两组之间和两种条件之间的差异。在模拟运动的变向动作中,组间髋关节-踝关节、髋关节-膝关节、膝关节-膝关节和膝关节-踝关节的耦合存在显著差异(p<0.05)。只有髋关节-膝关节耦合的条件变化分数具有显著差异(p=0.01),ACLR 组增加(51.8±79.1%),而健康对照组减少(-16.04±64.1%)髋关节屈伸和膝关节外展-内收耦合。两组之间正常变向的协调没有显著差异。在跑动-变向过程中,加入模拟运动视觉注意力和双重任务运动规划可能会引起 ACLR 运动员与健康对照组不同的下肢运动模式,这可能会导致 ACLR 病史患者在重返运动时增加再次受伤的风险。

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