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首页> 外文期刊>Journal of electromyography and kinesiology: Official journal of the International Society of Electrophysiological Kinesiology >Shear wave elastography investigation of multifidus stiffness in individuals with low back pain
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Shear wave elastography investigation of multifidus stiffness in individuals with low back pain

机译：抗腰痛较低疼痛中多法刚度的剪切波形弹性凝视

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摘要

The purpose of this study was to investigate differences in passive muscular stiffness between the superficial multifidus (SM) and deep multifidus (DM), and to compare their passive and active stiffness in individuals with low back pain (LBP) and asymptomatic individuals. Fifteen LBP individuals and 15 asymptomatic individuals were recruited. Passive stiffness of the SM and DM was measured bilaterally using shear wave elastography (SWE) with participants lying prone. Active stiffness was measured for the SM during trunk extension, and the contraction ratio was calculated. DM displayed higher passive muscular stiffness than SM in both the asymptomatic and LBP groups (14.41 +/- 2.62 and 15.40 +/- 2.77 kPa respectively; p < 0.001). Individuals with LBP exhibited higher passive muscular stiffness of SM (LBP: 10.15 +/- 4.21, asymptomatic: 6.84 +/- 1.69 kPa; p < 0.005) and a lower contraction ratio (LBP: 1.54 +/- 0.47, asymptomatic: 2.65 +/- 1.36 kPa; p < 0.003) compared to the asymptomatic group. The findings support a differentiation in passive muscular stiffness between SM and DM and provide evidence for an alteration in muscular stiffness at rest in individuals with LBP. The lower increase of muscular stiffness with contraction observed for those with LBP may reflect a deficit in activation of the multifidus.
机译：本研究的目的是探讨浅表多法（SM）和深浊度（DM）之间被动肌肉刚度的差异，并比较腰痛（LBP）和无症状的个体中的个体的被动和主动刚度。招募了十五个LBP个人和15个无症状的个体。使用剪切波弹性摄影（SWE）与参与者倾向于平静地测量SM和DM的被动刚度。在树干延伸期间测量SM的主动刚度，并计算收缩率。 DM显示比无症状和LBP组中的SM更高的被动肌肉刚度（分别为14.41 +/- 2.62和15.40 +/- 2.77 kPa; P <0.001）。具有LBP的个体表现出较高的SM被动肌肉刚度（LBP：10.15 +/- 4.21，无症状：6.84 +/- 1.69 KPA; P <0.005）和收缩率较低（LBP：1.54 +/- 0.47，无源性：2.65 + / - 1.36 kPa; p <0.003）与无症状组相比。该研究结果支持SM和DM之间的被动肌肉刚度的差异，并提供患有LBP的个体休息的肌肉刚度的变化的证据。对于具有LBP的人观察到的收缩较低的肌肉刚度的增加可能反映了多法的激活中的缺陷。

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