The Analysis of Psychological and Electrophysiological Differences during Standing Work according to Worktable Height

초록

The purpose of this study was to investigate psychological and electrophysiological differences according to the height of the worktable during the standing work. Based on the safety and health guidelines of the Korea occupational safety and health agency for musculoskeletal diseases, 60 adult male participated for the study. The appropriate height between the height under the elbow and the worktable was set to 7.5 cm, an average of 5~10 cm. The experimental groups were separated into 2.5 cm group, 7.5 cm group, and 12.5 cm group. For the psychophysiological test, skin conductance, skin temperature, respiratory rate, and heart rate were measured, and for the electrophysiological test, upper trapezius muscle activity was measured. 2.5 cm group and 12.5 cm group showed significant increases of skin conductance and trapezius muscle activity compared with 7.5 cm group. It is suggested that the autonomic nervous system is more sensitive to the stimulation when the worktable height is higher or lower than the height recommended by the Korea occupational safety and health agency.

키워드