Evaluation of muscular activity, local muscular fatigue, and muscular rest patterns among dentists
Evaluation of muscular activity, local muscular fatigue, and muscular rest patterns among dentists
复制标题
牙医对肌肉活动、局部肌肉疲劳和肌肉休息模式的评估
DOI：
10.1080/00016350510019964
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发表时间：
2005
影响因子：
2
通讯作者：
T. Öberg
中科院分区：
文献类型：
--
作者：
B. Rolander;D. Jonker;A. Karsznia;T. Öberg
在以前的研究中，牙医报告了非常高的分数感知身体工作量，但只有低到中等分数的肌肉骨骼系统。当与牙科服务中的其他职业群体进行比较时，很难解释这一点，这也是进行本研究的主要原因。为了测量肌肉活动，进行了表面肌电图（sEMG）研究，并纳入了在先前研究中报告颈部和肩部主诉的受试者。采用便携式表面肌电信号采集系统（MyoGuard）在线采集肌电信号，并在计算机上进行分析。在一个普通的工作日中，记录两个肌群的sEMG约4 h。27名牙医参与了这项研究。结果显示，累积休息%相当接近的女收银员和超市员工，并增加平均矫正价值百分比（ARV%）在工作中，可能有助于牙医认为非常高的工作量。
In a previous study, dentists reported very high scores for perceived physical workload, but only low to moderate scores for the musculoskeletal system. This is difficult to explain when other occupational groups in the dental services are compared, and is the main reason why the present study was performed. To measure muscular activity, a surface electromyography (sEMG) study was done, and included the subjects who reported neck and shoulder complaints in the previous study. A portable sEMG system (MyoGuard) was used to collect a myoelectric signal on-line and analysis of the myoelectric signal in a computer. sEMG was recorded from both trapezius muscles for approximately 4 h during an ordinary working day. Twenty-seven dentists participated in the study. The results show accumulated rest% fairly close to that of female cashiers and supermarket employees and increased average rectified value percent (ARV%) during work that could contribute to the very high workload perceived by dentists.