Individuals with chronic low back pain have reduced myofascial force transmission between latissimus dorsi and contralateral gluteus maximus muscles

IF 2.4 3区医学 Q3 BIOPHYSICS

Journal of biomechanics Pub Date : 2025-07-03 DOI:10.1016/j.jbiomech.2025.112850

Paula R Soares Procópio , Rafael Zambelli Pinto , Bárbara A Junqueira Murta , Paola Figueiredo Caldeira , Priscila Albuquerque Araújo , Robert Schleip , Sérgio Teixeira Fonseca , Renan Alves Resende , Juliana Melo Ocarino

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引用次数: 0

Abstract

The thoracolumbar fascia is essential in lumbar stabilization and is considered a path of transmitting myofascial force. This study investigates whether there is a difference in the myofascial force transmission between latissimus dorsi and contralateral gluteus maximus in individuals with and without chronic low back pain (CLBP). Forty-eight individuals were divided into CLBP and control groups. Outcome variables were evaluated in two experimental conditions: relaxed and contracted latissimus dorsi. Lumbar stiffness was assessed using a non-invasive digital indentometer, and passive properties of the contralateral hip (resting position, torque and stiffness) were evaluated using an isokinetic dynamometer. Trunk and hip muscle activation was monitored with electromyography. Data were analyzed using two-way ANOVA. Latissimus dorsi contraction increased lumbar stiffness in both groups (p < 0.001) compared to the relaxed condition. However, only the control group showed a change in the hip resting position toward greater lateral rotation and an increase in passive hip torque with latissimus dorsi contraction compared to the relaxed condition (p < 0.001). Additionally, latissimus dorsi contraction led to a small and clinically non-relevant increase in passive hip stiffness (below the standard error of measurement) in both groups when compared to the relaxed condition. The results demonstrated that the myofascial force transmission between latissimus dorsi and contralateral gluteus maximus is reduced in individuals with CLBP, since the latissimus dorsi contraction changed the passive properties only in the adjacent tissues (lumbar region) but not in tissues more distant from the origin of the traction.

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慢性腰痛患者背阔肌和对侧臀大肌之间的肌筋膜力传递减少

胸腰筋膜在腰椎稳定中是必不可少的，被认为是传递肌筋膜力的途径。本研究探讨有无慢性腰痛（CLBP）的个体背阔肌和对侧臀大肌肌筋膜力传递是否存在差异。48人被分为CLBP组和对照组。结果变量在松弛背阔肌和收缩背阔肌两种实验条件下评估。使用无创数字压痕仪评估腰椎僵硬度，使用等速测功仪评估对侧髋关节的被动特性（静止位置、扭矩和僵硬度）。用肌电图监测躯干和臀部肌肉的激活情况。数据分析采用双向方差分析。背阔肌收缩使两组患者腰椎僵硬度增高(p <；0.001)。然而，与放松状态相比，只有对照组表现出髋关节静止位置向更大的侧旋方向变化和背阔肌收缩的被动髋关节扭矩增加(p <；0.001)。此外，与放松状态相比，两组背阔肌收缩导致被动髋关节僵硬度（低于测量的标准误差）的小幅且与临床无关的增加。结果表明，在CLBP患者中，背阔肌和对侧臀大肌之间的肌筋膜力传递减少，因为背阔肌收缩只改变了邻近组织（腰椎区）的被动特性，而没有改变远离牵引力起源的组织。

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

Journal of biomechanics 生物-工程：生物医学

CiteScore

5.10

自引率

4.20%

发文量

345

审稿时长

1 months

期刊介绍： The Journal of Biomechanics publishes reports of original and substantial findings using the principles of mechanics to explore biological problems. Analytical, as well as experimental papers may be submitted, and the journal accepts original articles, surveys and perspective articles (usually by Editorial invitation only), book reviews and letters to the Editor. The criteria for acceptance of manuscripts include excellence, novelty, significance, clarity, conciseness and interest to the readership. Papers published in the journal may cover a wide range of topics in biomechanics, including, but not limited to: -Fundamental Topics - Biomechanics of the musculoskeletal, cardiovascular, and respiratory systems, mechanics of hard and soft tissues, biofluid mechanics, mechanics of prostheses and implant-tissue interfaces, mechanics of cells. -Cardiovascular and Respiratory Biomechanics - Mechanics of blood-flow, air-flow, mechanics of the soft tissues, flow-tissue or flow-prosthesis interactions. -Cell Biomechanics - Biomechanic analyses of cells, membranes and sub-cellular structures; the relationship of the mechanical environment to cell and tissue response. -Dental Biomechanics - Design and analysis of dental tissues and prostheses, mechanics of chewing. -Functional Tissue Engineering - The role of biomechanical factors in engineered tissue replacements and regenerative medicine. -Injury Biomechanics - Mechanics of impact and trauma, dynamics of man-machine interaction. -Molecular Biomechanics - Mechanical analyses of biomolecules. -Orthopedic Biomechanics - Mechanics of fracture and fracture fixation, mechanics of implants and implant fixation, mechanics of bones and joints, wear of natural and artificial joints. -Rehabilitation Biomechanics - Analyses of gait, mechanics of prosthetics and orthotics. -Sports Biomechanics - Mechanical analyses of sports performance.