Electromyographic activity of pelvic and lower limb muscles during postural tasks in people with benign joint hypermobility syndrome and non hypermobile people. A pilot study

被引:31
作者
Greenwood, Naomi L. [1 ]
Duffell, Lynsey D. [1 ]
Alexander, Caroline M. [2 ]
McGregor, Alison H. [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Fac Med, Dept Surg & Canc, Human Performance Grp,Div Surg, London W6 8RF, England
[2] Imperial Coll Healthcare NHS Trust, Charing Cross Hosp, Dept Physiotherapy, London W6 8RF, England
基金
英国工程与自然科学研究理事会; 英国惠康基金;
关键词
Electromyography; Hypermobility; Muscle; Posture; LOW-BACK-PAIN; KNEE OSTEOARTHRITIS; PROPRIOCEPTION; MOVEMENT; PATTERNS; WALKING; INJURY; RHEUMATOLOGY; STRATEGIES; LAXITY;
D O I
10.1016/j.math.2011.07.005
中图分类号
R49 [康复医学];
学科分类号
100215 ;
摘要
Benign joint hypermobility syndrome (BJHS) is associated with the early development of certain degenerative conditions, which may be associated with altered muscle activity. This pilot study compared muscle activation patterns during postural tasks between people with BJHS who do not have pain and people with normal flexibility (control group). Sixteen subjects aged 22-45 years (8 with BJHS) were selected from a population recruited to a larger study. Electromyographic activity of erector spinae (ES), gluteus medius (GM), and lower limb (rectus femoris (RF), semitendinosus (ST), tibialis anterior (TA) and gastrocnemius lateralis) muscles was assessed, and chosen based on the muscles being tested in the larger study. Subjects carried out 30 s of quiet standing (QS) and one-leg standing (OLS), both with eyes open (EO) and eyes closed (EC). Both groups had significantly more TA activity, and control subjects had significantly more GM activity, during OLS EC compared with QS. GM activity was not significantly different between groups. Compared with the BJHS group, control subjects had significantly less ST activation overall, significantly more ES activity during OLS EC and significantly less RF-ST co-contraction during QS. This study has noted differences in muscle activation patterns between pain-free hypermobile people and control subjects, specifically involving muscles surrounding the pelvis and hip. This pilot data suggests that strategies for stabilising the body during balancing tasks may be relevant to injury risk in people with BJHS. While results need to be verified with a larger subject sample, this study is important in developing new treatments for hypermobile people. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:623 / 628
页数:6
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