Electromyographic assessment of agonist and antagonist muscles related to the anterior cruciate ligament following surgical Reconstruction: A Cross-Sectional study

IF 2.3 4区医学 Q3 NEUROSCIENCES

Journal of Electromyography and Kinesiology Pub Date : 2025-08-05 DOI:10.1016/j.jelekin.2025.103044

Ricardo Paredes , Carlos Crasto , António Mesquita Montes , Anabela André , Soraia Pereira , Diana Guedes , Leonel Alves , José L. Arias-Buría

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引用次数: 0

Abstract

Background

Following anterior cruciate ligament reconstruction (ACLR), neuromuscular control alterations may persist, increasing the risk of reinjury. Objectives: This study aimed to investigate electromyographic (EMG) muscle activation and the co-contraction index (CCI) of ACL-related agonist and antagonist muscles during side-hop tasks in ACLR individuals, offering novel insights into neuromuscular strategies during dynamic tasks. Methods: A cross-sectional study was conducted with 15 ACLR individuals and 15 participants without ACL injury (N-ACLR). Participants performed side-hop tasks while kinematic, kinetic, and EMG data were recorded during the preparatory and loading phases. Statistical analyses were performed at a 95 % confidence level. Results: During ipsilateral side hops, ACLR individuals exhibited higher semitendinosus (ST) activity in the initial contact (IC) and risk phases and increased quadriceps:hamstrings (Q:H) CCI in the risk phase compared to N-ACLR (p < 0.05). In contralateral side hops, ACLR individuals demonstrated higher Q:H CCI in the preparatory phase and higher vastus lateralis:biceps femoris (VL:BF) CCI in the IC and risk phases (p < 0.05). Conclusion: ACLR individuals display altered neuromuscular strategies during side-hop tasks compared to N-ACLR, highlighting adaptations in muscle activation and co-contraction patterns.

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手术重建后与前交叉韧带相关的激动剂和拮抗剂肌肉的肌电图评估：一项横断面研究

背景：前交叉韧带重建（ACLR）后，神经肌肉控制改变可能持续存在，增加再损伤的风险。目的：本研究旨在研究ACLR个体侧跳任务中acl相关激动剂和拮抗剂肌肉的肌电图（EMG）肌肉激活和共收缩指数（CCI），为动态任务中的神经肌肉策略提供新的见解。方法：对15例ACLR患者和15例无ACL损伤（N-ACLR）的参与者进行横断面研究。在准备和加载阶段，参与者进行侧跳任务，同时记录运动学、动力学和肌电图数据。统计分析在95%的置信水平上进行。结果：与N-ACLR相比，在同侧跳跃期间，ACLR个体在初次接触（IC）和危险阶段表现出更高的半腱肌（ST）活性，并且在危险阶段表现出更高的股四头肌：腘绳肌（Q:H） CCI (p <；0.05)。在对侧跳跃中，ACLR个体在准备阶段表现出较高的Q:H CCI，在IC和危险阶段表现出较高的股外侧：股二头肌（VL:BF） CCI (p <；0.05)。结论：与N-ACLR相比，ACLR个体在侧跳任务中表现出改变的神经肌肉策略，突出了肌肉激活和共同收缩模式的适应。

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来源期刊

Journal of Electromyography and Kinesiology 医学-康复医学

CiteScore

4.70

自引率

8.00%

发文量

审稿时长

74 days

期刊介绍： Journal of Electromyography & Kinesiology is the primary source for outstanding original articles on the study of human movement from muscle contraction via its motor units and sensory system to integrated motion through mechanical and electrical detection techniques. As the official publication of the International Society of Electrophysiology and Kinesiology, the journal is dedicated to publishing the best work in all areas of electromyography and kinesiology, including: control of movement, muscle fatigue, muscle and nerve properties, joint biomechanics and electrical stimulation. Applications in rehabilitation, sports & exercise, motion analysis, ergonomics, alternative & complimentary medicine, measures of human performance and technical articles on electromyographic signal processing are welcome.