Munton J S, Ellis M I, Wright V
Ann Rheum Dis. 1984 Feb;43(1):63-5. doi: 10.1136/ard.43.1.63.
A previous study indicated the need for patients with arthritis to have an armchair from which it is easy to rise. To determine criteria for such a chair a greater understanding of the rising activity and the objective assessment of chair design is required. The major muscle groups of the leg were monitored by electromyography (EMG) in normal subjects and for patients with arthritis during rising from a chair. The effects on EMG patterns of changes of seat height, foot position, and the use of armrests were studied. This paper outlines the practical difficulties that must be borne in mind when designing an EMG study on arthritic and elderly subjects. The results did not illustrate any differences in the pattern of muscle activity between arthritic and normal subjects, nor did they show any differences caused by changing the variables of chair design.
先前的一项研究表明，关节炎患者需要一把易于起身的扶手椅。为了确定这种椅子的标准，需要对起身动作有更深入的了解，并对椅子设计进行客观评估。在正常受试者和关节炎患者从椅子上起身的过程中，通过肌电图（EMG）监测腿部的主要肌肉群。研究了座椅高度、脚部位置和扶手使用情况的变化对肌电图模式的影响。本文概述了在针对关节炎患者和老年受试者设计肌电图研究时必须牢记的实际困难。结果并未表明关节炎患者和正常受试者之间肌肉活动模式存在任何差异，也未显示出因改变椅子设计变量而导致的任何差异。
