Influence of Multi-factors on Fatigue Evaluation of Typical upper Extremity Operation / 航天医学与医学工程

Objective To study the influences of 8 important factors on fatigue evaluation as performing typical upper extremity operation. Methods Thirty-two subjects were divided into young male (G1),mid-age male (G2) and female (G3) groups. They were required to perform right arm flex/extend operation under different situations for 16 runs. L16 (44?23) orthogonal array was used to combine different situations (factors). Brief fatigue inventry(BFI) were recorded and simultaneous manual works (energy) were calculated. Both of them were used to evaluate the operation strategies. Results Difference between G1 and G2 was not significant,whereas it was as large as 39%,between G1+G2 and G3 (P