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Is sweat rate during steady state exercise related to maximum oxygen uptake?
The purpose of this study was to investigate whether whole-body sweat rate induced by exercise (SR ex) at the same oxygen uptake could be correlated with individual maximum oxygen uptake (peak oxygen uptake ( V ˙ O 2 peak ) ). A secondary purpose was to examine the relationship between SR ex and loc...
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Published in: | Journal of thermal biology 2006-08, Vol.31 (6), p.521-525 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The purpose of this study was to investigate whether whole-body sweat rate induced by exercise (SR
ex) at the same oxygen uptake could be correlated with individual maximum oxygen uptake (peak oxygen uptake
(
V
˙
O
2
peak
)
). A secondary purpose was to examine the relationship between SR
ex and local sweat rate induced by pilocarpine on the forearm at rest (SR
pilo). Nine healthy young males (
V
˙
O
2
peak
55.2 (12.3)
mL
min
−1
kg
−1, mean (SD); 43.3–76.1
mL
min
−1
kg
−1, range), acclimatized to a tropical climate had their sweating stimulated in two situations: (1) exercise-induced whole-body sweat by 120
min of cycling exercise at a constant submaximal oxygen uptake of 1.65
L
min
−1 or (2) pilocarpine-induced sweat on the right forearm with 0.5% pilocarpine hydrochloride (1.5
mA, 5
min) at rest. The SR
ex was not correlated with
V
˙
O
2
peak
(
r
=
-
0.53
,
p
=
0.14
). In addition, there was not correlation between SR
ex (0.38 (0.03)
mg
cm
−2
min
−1) and SR
pilo (0.36 (0.20)
mg
cm
−2
min
−1) (
r
=
0.23
,
p
=
0.57
). These results suggest that whole-body sweat rate during exercise at the same oxygen uptake in a temperate environment is not related to
V
˙
O
2
peak
. Furthermore, the eccrine sweat gland does not respond similarly for local pilocarpine or exercise stimuli. |
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ISSN: | 0306-4565 1879-0992 |
DOI: | 10.1016/j.jtherbio.2006.05.006 |