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Maresh Carl M.; Armstrong, Lawrence E.; Bergeron, Michael F.; Gabaree, Catherine L.; Hoffman, Jay R.; Hannon, Daniel R.; Pasqualicchio, Angela A.
Journal of Strength and Conditioning Research: February 1994
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ABSTRACTPlasma testosterone (T) and cortisol (C) measures were examined in swimmers in response to a 500-yd time trial conducted on five occasions (T1–T5) during a collegiate season of training and competition (21 weeks). The 6 male distance swimmer performed the time trials during transitions in their training regime. Preexercise blood samples were obtained following a 15-min equilibration period in a supine posture. After a standardized warm-up, each athlete completed the 500-yd time trial. Postexercise blood was taken within 1 min of completion with the swimmer in a supine posture. Pre- and postexercise T tended to rise progressively during the season, accompanied by a concomitant progressive decrease in the average daily training volume. Preexercise C concentrations were reduced (p < 0.005) at T2 and T5 compared to the beginning of the season (T1). However, the molar ratio of T/C was unchanged during the season. These hormonal measures may be useful in tracking training status and responses in selected individuals.

Plasma testosterone (T) and cortisol (C) measures were examined in swimmers in response to a 500-yd time trial conducted on five occasions (T1–T5) during a collegiate season of training and competition (21 weeks). The 6 male distance swimmer performed the time trials during transitions in their training regime. Preexercise blood samples were obtained following a 15-min equilibration period in a supine posture. After a standardized warm-up, each athlete completed the 500-yd time trial. Postexercise blood was taken within 1 min of completion with the swimmer in a supine posture. Pre- and postexercise T tended to rise progressively during the season, accompanied by a concomitant progressive decrease in the average daily training volume. Preexercise C concentrations were reduced (p < 0.005) at T2 and T5 compared to the beginning of the season (T1). However, the molar ratio of T/C was unchanged during the season. These hormonal measures may be useful in tracking training status and responses in selected individuals.

© 1994 National Strength and Conditioning Association