title: Effect of aerobic training on the plasma ACTH response to exercise.
abstract: The purpose of this study was to reexamine the effect of training on plasma adrenocorticotropin (ACTH) levels during exercise. Ten adult volunteers were split into a control and an experimental group. The experimental group participated in a 12-wk training program that resulted in a significant 11% increase in their mean maximal O2 uptake. The plasma ACTH response to a 150-W work rate was measured in both groups before and after the training program. The experimental group demonstrated a significant reduction in the ACTH response (11 vs. 4 pg/ml) to the work rate, whereas the control group demonstrated an unchanged response (16 vs. 13 pg/ml) over the course of the study. These data suggest that the ACTH response to an absolute submaximal work rate is blunted after training.
authors.affiliation: San Diego State Heart Institute, Department of Biology, California.
authors.forename: M J
authors.initials: MJ
authors.lastname: Buono
authors.forename: J E
authors.initials: JE
authors.lastname: Yeager
authors.forename: A A
authors.initials: AA
authors.lastname: Sucec
mesh_terms: D000324:Adrenocorticotropic Hormone / Q000097:blood*; D000328:Adult; D006801:Humans; D010100:Oxygen / Q000502:physiology; D005082:Physical Exertion; D010809:Physical Fitness
chemical_list: D000324:Adrenocorticotropic Hormone; D010100:Oxygen