The intricate link between anterior cruciate ligament rupture and lower limb muscle fatigue: a case study.

IF 1.4 Q3 ORTHOPEDICS

European Journal of Orthopaedic Surgery and Traumatology Pub Date : 2025-03-28 DOI:10.1007/s00590-025-04256-x

Zeynab Saghaeinooshabadi, Mohammad Reza Zakerzadeh, Mohmmad Ali Nazari

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引用次数: 0

Abstract

Purpose: This study aims to explore the impact of Anterior Cruciate Ligament (ACL) injuries on the fatigue behavior of selected lower limb muscles during high-intensity physical activity.

Methods: The study involves assessing the surface electromyographic activity of key muscle groups, including the hamstrings, quadriceps, and triceps surae (Biceps Femoris (BF), Semitendinosus (ST), Rectus Femoris (RF), Vastus Lateralis (VL), Vastus Medialis (VM), GastroCnemius Lateralis (GCL), GastroCnemius Medialis (GCM), and Soleus (S)), in an individual with a left leg ACL rupture. Muscle activity has been monitored during a fatigue protocol, and metrics such as Root Mean Square (RMS), Median Frequency (MDF), and Integrated Electromyography (IEMG) have been calculated to evaluate muscle function.

Results: Significant reductions in electromyographic parameters are observed in the BF, ST, VM, and VL of the injured leg and in the GCL of the contralateral leg during the fatigue protocol.

Conclusions: These findings enhance the understanding of how ACL injuries influence the neuromuscular function of both the affected and unaffected legs during prolonged activity. This knowledge provides valuable insights into knee joint loading mechanics and may inform strategies for addressing muscle fatigue and optimizing rehabilitation protocols.

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前十字韧带断裂与下肢肌肉疲劳之间错综复杂的联系：案例研究。

目的：本研究旨在探讨前十字韧带（ACL）损伤对高强度体力活动中某些下肢肌肉疲劳行为的影响：左腿前十字韧带断裂者的肌肉活动，包括腘绳肌、股四头肌和股三头肌（股二头肌（BF）、半腱肌（ST）、股直肌（RF）、腹外侧肌（VL）、腹内侧肌（VM）、腓肠肌外侧肌（GCL）、腓肠肌内侧肌（GCM）和腓肠肌（S））。在疲劳方案中对肌肉活动进行了监测，并计算了均方根（RMS）、中值频率（MDF）和综合肌电图（IEMG）等指标，以评估肌肉功能：结果：在疲劳方案中，受伤腿的 BF、ST、VM 和 VL 以及对侧腿的 GCL 的肌电图参数都出现了显著下降：这些发现加深了人们对前交叉韧带损伤在长时间活动时如何影响受影响腿和未受影响腿的神经肌肉功能的理解。这些知识为膝关节加载力学提供了宝贵的见解，并为解决肌肉疲劳和优化康复方案提供了参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Orthopaedic Surgery and Traumatology 医学-整形外科

CiteScore

3.00

自引率

5.90%

发文量

265

审稿时长

3-8 weeks

期刊介绍： The European Journal of Orthopaedic Surgery and Traumatology (EJOST) aims to publish high quality Orthopedic scientific work. The objective of our journal is to disseminate meaningful, impactful, clinically relevant work from each and every region of the world, that has the potential to change and or inform clinical practice.