Development of a Deep Body Temperature Elevation Screening System

—Study using Heart Rate, Respiratory Rate and Body Surface Temperature—

Abstract

To prevent heat stroke, we will develop a system to determine presence or absence of a rise in deep body temperature using physiological indices, i.e., heart rate, respiratory rate and body surface temperature. Prior to development, we conducted tests using ergometer for 15 min. with nine male students. We measured three physiological indices and deep body temperature for 15 min. with one-minute intervals after the exercise and conducted linear discriminant analysis by leave-one-out cross-validation. 37.5 degrees of deep body temperature was set as boundary and we classified heat stroke preliminary group from normal one. The sensitivity was 90.5% and the positive predictive value was 47.5%.