人体静态操作姿势与血流特性关系的实验研究

运用多普勒超声测量仪器测量了不同静态操作姿势角度下人体的血流特性，利用数理统计方法对所得数据进行统计分析，得出了人体在不同姿势角度下血流特性的变化规律，并在此基础上绘制出评分曲线．实验结果表明，人体在自然姿势角度时血流量最大，但当人体偏离自然姿势时，血流量则会越来越小，并由此引起人体舒适性的变化．此结果可作为人机工效的评价依据，使得人们不仅能够判断出人体的舒适区域，而且能够得到人体的最舒适姿势，同时也可对仪器设备的设计起到指导性作用．

Experimental Investigation to Relationship Between Static Postures and Blood Flow Characteristics

Blood flow characteristics are collected according to the principle of Doppler ultrasonic measurement and analyzed statistically to conclude the rule of blood flow in different postures. The experiments indicate that the blood flowrate is crests near the natural point, when people deviate from the natural point, blood flowrate reduces, and the more greatly people deviate frorrt it, the less blood flowrate is. As one of the ergonomic evaluations, this investigation enables to identify the comfort range and the optimum position to guide the equipment designs.