多段階負荷運動時の外耳道温の変化

概要

論文の詳細を見る
Relationship between temperature of external auditorycanal (Te) and work rate (W), oxygen intake (VO2), heartrate (HR), and blood lactate concentration (La), whichwere obtained during pedaling exercise with stepwiseincremental load method, were examined in twentyhealthy male students. The first load was 30 watts andthen load was increased by 30 watts every 3 minutesuntil 240 watts as a maximal load. Te was measured at aplace of about 1.5 cm inside of external auditory canal.V02, HR, and La were determined during last 30 secondsin each load. Te was almost constant at the loads fromthe first to 3rd-5th load, and after that increased rapidly.This showed a breaking point in the relations between Teand W, V02, and HR. The mean values of W, V02, and HRat the breaking point were 94.5 (SD, 24.38) watts， 19.1(3.14) ml/kg/min, and 109.9 (10.82) beats/min,respectively. However, there was a significant positiverelationship between Te and La. These results indicatedthat some metabolites like La and C02, which relate toblood vessel dilatation. will affect on the change in Teduring exercise.
徳島大学の論文