The effects of work pace on within-participant and between-participant keying force, electromyography, and fatigue

摘要

A laboratory study was conducted to determine the effects of work pace on typ- ing force, electromyographic (EMG)activity, and subjective discomfort. We found that as participants typed faster, their typing force and finger flexor and extensor EMG activity increased linearly. There was also an increase in subjective discomfort, with a sharp threshold between participants' self-selected pace and their maximum typing speed. The results suggest that participants self-select a typing pace that maximizes typing speed and minimizes discomfort.