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Gluteus medius muscle activity during gait in people with and without chronic nonspecific low back pain: A case control study
Gait & Posture ( IF 2.4 ) Pub Date : 2020-10-09 , DOI: 10.1016/j.gaitpost.2020.10.003
Sean Sadler 1 , Martin Spink 1 , Vivienne Chuter 2
Affiliation  

Background

Research investigating differences in gluteus medius muscle activity in those with and without chronic nonspecific low back pain is both limited and conflicting. Additionally, in these populations the relationship between gluteus medius muscle activity, foot type, and transversus abdominis muscle thickness is unclear.

Research question

We aimed to investigate gluteus medius muscle activity during gait in those with and without chronic nonspecific low back pain. Secondarily, we aimed to explore the association between gluteus medius muscle activity, foot type, and transversus abdominis muscle thickness within groups.

Methods

This case control study recruited 30 people with and 30 people without chronic nonspecific low back pain and matched participants by age (±5 years), sex, and body mass index (±2 BMI units). Gluteus medius muscle activity was measured with surface electromyography during walking gait, with foot type and transversus abdominis muscle thickness measured with the Foot Posture Index and ultrasound respectively. The Mann-Whitney U test was used to investigate differences in gluteus medius muscle activity between groups. Spearman rank order correlation was performed to explore the association between gluteus medius muscle activity, foot type, and transversus abdominis thickness within each group. A linear regression was used to analyse significant correlations (P < 0.05).

Results

We found no significant differences in gluteus medius muscle activity between groups. However, there was a moderate correlation between the Foot Posture Index score and gluteus medius peak amplitude (P = 0.04) for those with mild to moderate chronic nonspecific low back pain.

Significance

Clinicians should be aware that patients with mild to moderate chronic nonspecific low back pain may not demonstrate significant differences in gluteus medius muscle activity compared to those without back pain. Additionally, higher peak gluteus medius muscle activity is likely to occur in people with mild to moderate chronic nonspecific low back pain and planus feet.



中文翻译:

患有和不患有慢性非特异性下背痛的人群步态中臀肌活动的病例对照研究

背景

有和没有慢性非特异性下腰痛的人研究臀中肌活动差异的研究既有限又矛盾。此外,在这些人群中,臀中肌活动,足部类型和腹横肌厚度之间的关系尚不清楚。

研究问题

我们的目的是调查患有和不患有慢性非特异性下背痛的人群步态中的臀中肌活动。其次,我们旨在探讨组内中臀肌活动,足型和腹横肌厚度之间的关系。

方法

该病例对照研究招募了30名患有慢性非特异性下腰痛的人和30名没有慢性非特异性下腰痛的人,并按年龄(±5岁),性别和体重指数(±2 BMI单位)对参与者进行了匹配。步行步态用表面肌电图测量臀肌的活动度,用脚姿势指数和超声分别测量足型和腹横肌厚度。使用Mann-Whitney U检验研究两组之间的臀中肌肌肉活动的差异。用Spearman等级顺序相关性研究了每组中臀肌活动,足型和腹横肌厚度之间的关系。使用线性回归分析显着相关性(P <0.05)。

结果

我们发现两组之间的臀中肌活动没有显着差异。然而,对于轻度至中度慢性非特异性下背痛患者,足部姿势指数评分与臀中肌峰值幅度之间存在中等相关性(P = 0.04)。

意义

临床医生应该意识到,轻度至中度慢性非特异性下背痛患者与没有背痛的患者相比,臀中肌活动可能未显示出明显差异。此外,在轻度至中度慢性非特异性腰背痛和扁平足患者中,臀高肌峰值活动可能发生。

更新日期:2020-10-13
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