[靠背厚度对电脑工作时腰部肌肉疲劳影响的研究]
[Study on effect of backrest thickness to lumbar muscle fatigue during computer work].
作者信息
Huang Yan-di, Wang Sheng, Wang Tong, He Li-hua, Liu Yuan-feng
机构信息
Peking University Health Science Center, Beijing 100191, China.
出版信息
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2012 Feb;30(2):113-4.
OBJECTIVE
To investigate the relationship between backrest thickness and lumbar muscle fatigue so as to confirm the fitting backrest thickness.
METHOD
Twenty subjects coming from university seated at a computer workstation in three backrest thicknesses: 4, 7 and 10 cm. The time that the subjects reported the lumbar muscle fatigue was collected during each trial and subjective appraise was collected at the end of the entire protocol.
RESULTS
The MF value decreased and lumbar muscle felt fatigue in all three backrest thickness. Subject could feel fatigue more late [(45.0 +/- 10.8) min] and subject felt more comfort at 7 cm thickness.
CONCLUSION
It is better to relive computer worker lumbar muscle fatigue when the backrest thickness was kept on 7 cm. Work break was needed because one hour work could cause muscle fatigue.
目的
研究靠背厚度与腰肌疲劳之间的关系，以确定合适的靠背厚度。
方法
20名来自大学的受试者坐在电脑工作站前，使用三种靠背厚度：4厘米、7厘米和10厘米。在每次试验过程中收集受试者报告腰肌疲劳的时间，并在整个试验结束时收集主观评价。
结果
在所有三种靠背厚度下，MF值均下降，腰肌感到疲劳。受试者在7厘米厚度时能更晚感觉到疲劳[（45.0±10.8）分钟]，且感觉更舒适。
结论
当靠背厚度保持在7厘米时，能更好地缓解电脑工作者的腰肌疲劳。由于一小时的工作会导致肌肉疲劳，因此需要进行工作休息。
Zotero 插件