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首页> 外文期刊>Journal of hand therapy: Official journal of the American Society of Hand Therapists >Muscle activation during hand dexterity tasks in women with hand osteoarthritis and control subjects.
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Muscle activation during hand dexterity tasks in women with hand osteoarthritis and control subjects.

机译：患有手部骨关节炎的女性和对照对象在手灵巧任务期间的肌肉激活。

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STUDY DESIGN: Descriptive cross-sectional study. INTRODUCTION: Hand osteoarthritis (OA) is a condition that results in hand pain and disability. It is important to understand how muscle function impairments contribute to impaired dexterity. PURPOSE OF THE STUDY: To compare muscle activation in women with and without hand OA and determine if the activation relates to measures of impairment and disability. METHODS: Electromyography (EMG) was recorded from four muscles of the hand/forearm while subjects threaded (assembly) and unthreaded (disassembly) a small bolt. The groups were compared on the integrated EMG (IEMG) of four muscles using two-way repeated-measures analyses of covariance for the assembly and disassembly tasks. RESULTS: No differences were found in muscle activation between groups when IEMG values were normalized by time (p>0.05). CONCLUSIONS: Patients with OA have some indicators of altered muscle function. It is unclear whether these are adaptive or predisposing changes. When controlling for the time to perform a task, there were no significant IEMG differences between women with hand OA and control subjects. LEVEL OF EVIDENCE: 2b.
机译：研究设计：描述性横断面研究。简介：手部骨关节炎（OA）是一种导致手部疼痛和残疾的疾病。重要的是要了解肌肉功能障碍如何导致灵活性受损。研究目的：比较有和没有手OA的女性的肌肉激活，并确定该激活是否与损伤和残疾的测量有关。方法：从受试者的四根手/前臂肌肉记录肌电图（EMG），然后将对象穿入一个小螺栓并拧入（拆开）。使用组装和拆卸任务的协方差的双向重复测量分析，对两组肌肉的综合肌电图（IEMG）进行比较。结果：IEMG值按时间归一化后，各组之间的肌肉激活无差异（p> 0.05）。结论：OA患者有一些肌肉功能改变的指标。目前尚不清楚这些变化是适应性变化还是诱发性变化。在控制执行任务的时间时，手OA的女性与对照组之间的IEMG没有显着差异。证据级别：2b。

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