Mild overcooling increases energy expenditure during endurance exercise

Anders Mikael Sjödin; A Forslund; P Webb; L Hambræus

doi:10.1111/j.1600-0838.1996.tb00065.x

Mild overcooling increases energy expenditure during endurance exercise

Anders Mikael Sjödin^*, A Forslund, P Webb, L Hambræus

^*Corresponding author for this work

3 Citations (Scopus)

Abstract

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 sports.

Original language	English
Journal	Scandinavian Journal of Medicine and Science in Sports
Volume	6
Issue number	1
Pages (from-to)	22-25
Number of pages	4
ISSN	0905-7188
DOIs	https://doi.org/10.1111/j.1600-0838.1996.tb00065.x
Publication status	Published - 1996
Externally published	Yes

Keywords

Calorimetry
Cold, thermogenesis
Work efficiency

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10.1111/j.1600-0838.1996.tb00065.x

Cite this

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title = "Mild overcooling increases energy expenditure during endurance exercise",

abstract = "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 sports.",

keywords = "Calorimetry, Cold, thermogenesis, Work efficiency",

author = "Sj{\"o}din, {Anders Mikael} and A Forslund and P Webb and L Hambr{\ae}us",

year = "1996",

doi = "10.1111/j.1600-0838.1996.tb00065.x",

language = "English",

volume = "6",

pages = "22--25",

journal = "Scandinavian Journal of Medicine & Science in Sports",

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TY - JOUR

T1 - Mild overcooling increases energy expenditure during endurance exercise

AU - Sjödin, Anders Mikael

AU - Forslund, A

AU - Webb, P

AU - Hambræus, L

PY - 1996

Y1 - 1996

N2 - 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 sports.

AB - 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 sports.

KW - Calorimetry

KW - Cold, thermogenesis

KW - Work efficiency

U2 - 10.1111/j.1600-0838.1996.tb00065.x

DO - 10.1111/j.1600-0838.1996.tb00065.x

M3 - Journal article

C2 - 8680939

AN - SCOPUS:0030078818

SN - 0905-7188

VL - 6

SP - 22

EP - 25

JO - Scandinavian Journal of Medicine & Science in Sports

JF - Scandinavian Journal of Medicine & Science in Sports

IS - 1

ER -

Mild overcooling increases energy expenditure during endurance exercise

Abstract

Keywords

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