Why the study?
Does heat acclimation alter orthostatic fluid-electrolyte and endocrine responses in young men?
Population
10 young men (fainters and nonfainters)
Comparison
8 days of heat acclimation vs 8 days of the same exercise at 24 degrees C
Design
Other
Follow-up
8 days
Authors
Loading...
May support short-term exercise for orthostatic tolerance via plasma volume expansion; leaves open heat acclimation effects in broader populations.
Does heat acclimation alter orthostatic fluid-electrolyte and endocrine responses in young men?
Improvement in orthostatic reactions after exercise/heat acclimation is associated with increased plasma volume and reduced orthostatic-induced increases in vasopressin and plasma renin activity.
Shvartz et al. (1981) studied this question.