Mild overcooling increases energy expenditure during endurance exercise
作者:
A. Sjödin,
A. Forslund,
P. Webb,
L. Hambræus,
期刊:
Scandinavian Journal of Medicine&Science in Sports
(WILEY Available online 1996)
卷期:
Volume 6,
issue 1
页码: 22-25
ISSN:0905-7188
年代: 1996
DOI:10.1111/j.1600-0838.1996.tb00065.x
出版商: Blackwell Publishing Ltd
关键词: calorimetry;cold;thermogenesis;work efficiency
数据来源: WILEY
摘要:
Intensive cooling has been shown to increase energy expenditure (EE) during work as well as to decrease physical performance. Two different levels of moderate cooling (10°C vs 15°C) were studied during light endurance exercise in order to examine the effect of the increased heat loss on EE. Twelve subjects performed a 90‐min low intensity exercise (100 W) on a cycle ergometer, wearing a water‐cooled calorimeter suit for controlled cooling. The lower temperature resulted in a 4.3±3.8% (mean±SD) higher EE, increased total heat loss and lowered skin temperatures. No differences in central core body temperature, heart rate or respiratory quotient (RQ) were recorded. There was a relation between differences in the rate of heat loss and the corresponding increase in EE. Even a small increase in cooling during endurance exercise increased EE which may be a relevant problem in winter
点击下载:
PDF
(423KB)
返 回