肩袖撕裂患者肩关节外展和屈曲时肩周肌肉协同模式的变化。

IF 5.2 2区 医学 Q2 ENGINEERING, BIOMEDICAL
Miao-Qin Zhan;Jian-Ning Sun;Nan Zheng;Yu-Rong Li;Peng Chen
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引用次数: 0

摘要

了解肌腱套撕裂(RCT)患者的肌肉协同变异性及其临床相关性对于阐明运动控制机制和指导康复至关重要。本研究使用非负矩阵分解(NMF)来评估年龄和病理因素对外展(ABD)和屈曲(FL)任务中协同模式的影响。招募了15名年轻对照(YC), 15名老年对照(EC)和20名老年RCT患者。记录8块肩部肌肉的表面肌电图(sEMG)信号进行NMF分析,并通过回归评估与Constant-Murley评分(CMS)的相关性。结果显示,RCT组FL任务的协同效应数显著低于EC组(4.5±1.3比5.6±1.1,P = 0.01)和YC组(4.5±1.3比5.6±1.0,P = 0.03),而ABD任务的协同效应数无显著差异(P = 0.10)。ABD中模式1以斜方上肌和斜方中肌为主,EC组模式4以冈上肌为主,YC组冈上肌和后三角肌均受累。在FL中,RCT组的中三角肌重量在模式3中显著增加,提示代偿激活或病理标记。中三角肌均方根值与CMS有较强的相关性(ABD: R²= 0.53,P < 0.001; FL: R²= 0.46,P < 0.001)。这些发现揭示了RCT患者的任务特异性补偿机制,并为有针对性的康复策略提供了见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Changes in Synergistic Patterns of Peri-Shoulder Muscles During Shoulder Abduction and Flexion in Patients With Rotator Cuff Tears
Understanding muscle synergy variability and its clinical relevance in rotator cuff tear (RCT) patients is crucial for elucidating motor control mechanisms and informing rehabilitation. This study uses non-negative matrix factorization (NMF) to assess the influence of age and pathological factors on synergy patterns during abduction (ABD) and flexion (FL) tasks. Fifteen young controls (YC), fifteen elderly controls (EC), and twenty elderly RCT patients were recruited. Surface electromyography (sEMG) signals from eight shoulder muscles were recorded for NMF analysis, and the correlation with the Constant-Murley Score (CMS) was evaluated via regression. Results revealed that the number of synergies in the FL task was significantly lower in the RCT group compared to the EC ( $4.5~\pm ~1.3$ vs. $5.6~\pm ~1.1$ , P=0.01) and YC groups ( $4.5~\pm ~1.3$ vs. $5.6~\pm ~1.0$ ,P=0.03), with no significant difference in the ABD task (P=0.10). In ABD, synergy pattern 1 was dominated by the upper trapezius and middle trapezius, while in the EC group, pattern 4 was driven by the supraspinatus, and in the YC group, both supraspinatus and posterior deltoid were involved. In FL, the middle deltoid weight was significantly increased in pattern 3 in the RCT group, suggesting compensatory activation or a pathological marker. The root mean square value of middle deltoid strongly correlated with CMS (ABD: R ${}^{2} =0.53$ ,P< 0.001; FL: R ${}^{{2}} =0.46$ ,P< 0.001). These findings reveal task-specific compensation mechanisms in RCT patients and provide insights for targeted rehabilitation strategies.
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来源期刊
CiteScore
8.60
自引率
8.20%
发文量
479
审稿时长
6-12 weeks
期刊介绍: Rehabilitative and neural aspects of biomedical engineering, including functional electrical stimulation, acoustic dynamics, human performance measurement and analysis, nerve stimulation, electromyography, motor control and stimulation; and hardware and software applications for rehabilitation engineering and assistive devices.
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