Davis P J, Fernandez J E
Industrial and Manufacturing Engineering Department, Wichita State University, KS 67260-0035, USA.
J Hum Ergol (Tokyo). 1994 Dec;23(2):81-92.
This paper presents a study on the effect of wrist posture; flexion, extension, ulnar deviation, and radial deviation on maximum acceptable frequencies (MAF) for a drilling task using a psychophysical approach. Twelve females were selected from a college population to serve as subjects and an adjustable workstation was used to simulate a drilling task. The results revealed that flexion, extension, and radial deviation all had a significant effect on MAF but, ulnar deviation did not. The postures have been ranked in order of possible risk of contributing to CTD injury, with neutral having the lowest rank (lowest risk) and flexion having the highest rank (greatest risk).
本文采用心理物理学方法，研究了手腕姿势（屈曲、伸展、尺侧偏斜和桡侧偏斜）对钻孔任务最大可接受频率（MAF）的影响。从大学生群体中选取了12名女性作为受试者，并使用一个可调节的工作站来模拟钻孔任务。结果显示，屈曲、伸展和桡侧偏斜对MAF均有显著影响，但尺侧偏斜没有。这些姿势已按照导致累积性创伤失调（CTD）损伤的潜在风险进行了排序，中立姿势的风险等级最低（风险最小），屈曲姿势的风险等级最高（风险最大）。
