Abstract
In this study, we analyze physiological information under reddish facial color using a force display of a virtual arm wrestling system. More specifically, under a static load of the system, an emotional method for evaluating the facial color by simultaneously determining the facial image, facial skin temperature, facial electromyography, and respiration is proposed. Through this method, we found that a decrease in the hue of facial color when the facial skin temperature increases causes tension in the corrugator supercilii and zygomaticus major muscles and a relative shortage in oxygen, creating an anaerobic state.