Abstract
This study is intended as an investigation of the effects of different breathing manners on physiological response of human body like HR, blood pressure(SBP), respiration rate, vantilation volume for one breathing (TB), ventilation volume for one min (VE), and subjective load of movement during constant-load movement. Healthy subjects conducted three kinds of breathing manners; a)natural breathing, b) combination of expiration twice and inspiration twice, and c) forced expiration . It was found that there were an increase in TV and a decrease in VE in b) compared with a). In contrast, a decrease in TV and an increase in VE were observed in c) compared with a). There were no significant differences in HR, SBP and subjective load of movement among a), b), and c). It has alreadly been reported that voluntary change in breathing manners can affect V02 and the circulatory system. No effect on HR or SBP was, however, observed in this study.
