Journal of Applied Physiology, Vol 51, Issue 6 1526-1532, Copyright © 1981 by American Physiological Society
Effect of physical training on exercise-induced sweating in women
T. Araki, K. Matsushita, K. Umeno, A. Tsujino and Y. Toda
The effect of physical training on the time course of sweat rate in women
has been examined. Physically untrained and trained young female subjects
pedaled a bicycle ergometer at work rates of 483 and 981 kgm.min-1, for 2 h
in summer and winter in an ambient environment of 30 degrees C db and 60%
rh. The trained women also worked at 1,070 kgm.min-1 and the untrained at
391 kgm.min-1. Rectal temperature was measured, and capsule sweat samples
were collected from the back every 5 min. Sweating was initiated more
rapidly in the trained group than in the untrained group. The trained group
working at a load of 981 kgm.min-1 exhibited a progressive decrease in
sweat rate. This was not observed at a work load of 483 kgm.min-1.
Hidromeiosis was rarely seen in the untrained group. However, in the
untrained women who underwent 60 days of physical training, initiation of
sweating occurred more quickly and hidromeiosis was observed. It was
concluded that previous physical training improved women's capacity for
useful sweating during exercise in a hot environment.
