2007, Piran, Slovenia

Sweating
dramatically after puberty in boys, no sex differences in the SR were observed in prepubertal
children, and the degree of increase in the SR with physical training is considerably smaller in
prepubertal children than in young men. They discussed how these three properties of the SR
are related to the marked increase in testosterone that occurs after puberty in boys, the lack of
a sex difference in testosterone in prepubertal children, and the absence of a marked increase
in testosterone with physical training in prepubertal children, respectively. Furthermore,
testosterone is not increased dramatically after puberty in females, and the degree of increase
in testosterone with physical training in women is considerably smaller than in men (5).
Together with the findings of previous studies (4, 5, 7), our results suggest that the sex
difference in the relative increase in testosterone with physical training is reflected in the
effects of training on sweat gland size and cholinergic sensitivity.
DISCUSSION
The measurements of exercise- and Ach-induced SR, ASG, and SGO demonstrated that
physical training improved sweat gland function peripherally in women and men, that the sex
differences in sweat gland function were more marked in physically fit persons than in unfit
persons, and that the improvement in sweat gland function was inferior in women compared
with men.
ACKNOWLEDGMENTS
This study was supported by Grants-in-Aid of Scientific Research from the Ministry of
Education, Culture, Sports, Science, and Technology of Japan (grants no. 16500435 and
19500556).
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