Single-Joint and Whole-Body Movement Changes in Anterior Cruciate Ligament Athletes Returning to Sport
Single-Joint and Whole-Body Movement Changes in Anterior Cruciate Ligament Athletes Returning to Sport
复制标题
前十字韧带运动员重返运动的单关节和全身运动变化
DOI：
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发表时间：
2020
影响因子：
4.1
通讯作者：
S. Verschueren
中科院分区：
文献类型：
--
作者：
Annemie Smeets;Jasper Verheul;J. Vanrenterghem;F. Staes;H. Vandenneucker;S. Claes;S. Verschueren
补充数字内容可在文本中找到。摘要引言前交叉韧带重建（ACLR）后重返运动场的运动员表现出着陆运动学、动力学和肌肉激活的长期变化，使他们易于再损伤、膝关节骨关节炎和/或膝关节不稳定。到目前为止，研究人员一直专注于运动学和动力学如何分别在每个关节中变化。然而，由于人体在动力学链中运行，我们将评估单个关节的变化是否与全身变化相关。方法21名有ACLR的运动员和21名未受伤的对照组进行了5项单侧着陆任务，而下肢运动学，动力学和股内侧肌，股外侧肌，股二头肌，半腱肌，半膜肌，腓肠肌和臀中肌的肌肉激活被记录。ACL损伤腿的单关节着地运动学、动力学和肌肉激活与未损伤腿进行比较，并与对照组进行比较。全身的变化进行了评估，通过分解运动到基本组成部分，使用标记为基础的主成分分析（PCA）。结果我们发现，在ACLR运动员中，着陆运动学，动力学和肌肉激活的几个单关节变化在所有任务中都可以看到，因此很有意义，因为它们也可能在运动过程中发生。与未受伤腿相比，ACL受伤腿的腘绳肌激活增加，膝关节外屈曲力矩减少。此外，与对照组相比，髋关节内收力矩和膝关节外展角降低。PCA可以检测全身运动的变化，这是特定于任务的。结论ACLR运动员在恢复运动时单腿着地时仍表现出保护性任务无关的单关节运动学、动力学和肌肉激活变化。这些单关节的变化并不总是伴随着全身运动的变化（基于标记的PCA显示）。单关节补偿的整体表达可能会受到任务要求的影响。
Supplemental digital content is available in the text. ABSTRACT Introduction Athletes returning to sport after anterior cruciate ligament reconstruction (ACLR) demonstrate prolonged changes in landing kinematics, kinetics, and muscle activation, predisposing them for reinjury, knee osteoarthritis, and/or knee instability. So far, researchers have been focusing on how kinematics and kinetics change in every joint separately. However, as the human body operates within a kinetic chain, we will assess whether single-joint changes are associated with whole-body changes. Methods Twenty-one athletes who had an ACLR and 21 uninjured controls performed five unilateral landing tasks, whereas lower limb kinematics, kinetics, and muscle activations of vastus medialis, vastus lateralis, biceps femoris, semitendinosus, semimembranosus, gastrocnemius, and gluteus medius were recorded. Single-joint landing kinematics, kinetics, and muscle activations of the ACL-injured leg were compared with the uninjured leg and compared with the control group. Whole-body changes were assessed by decomposing movements into fundamental components using marker-based principal component analysis (PCA). Results We found several single-joint changes in landing kinematics, kinetics, and muscle activations in the athletes with ACLR that were seen across all tasks and therefore of major interest as they are likely to occur during sports as well. Hamstrings activation increased and external knee flexion moments decreased in the ACL-injured leg compared with their uninjured leg. Furthermore, hip adduction moments and knee abduction angles decreased compared with the control group. The PCA could detect changes in whole-body movement, which were task-specific. Conclusions Athletes with ACLR still show protective task-independent single-joint kinematic, kinetic, and muscle activation changes during single-leg landings at the time of return to sport. These single-joint changes were not consistently accompanied by changes in whole-body movements (revealed by marker-based PCA). Whole-body expressions of the single-joint compensations are likely to be affected by the demands of the task.
用于了解膝关节韧带负载的神经肌肉生物力学建模。
影响因子：
4.1
作者：
Lloyd,DavidG;Buchanan,ThomasS;Besier,ThorF
通讯作者：
Besier,ThorF