Effects of Intensive Training on Prolactin Responses to Submaximal Exercise in Males

Authors

A. C. Hackney, Iowa State University
R. L. Sharp, Iowa State UniversityFollow
W. S. Runyan, Iowa State University
R. J. Ness, Iowa State University

Document Type

Research

Abstract

The purpose of this study was to determine if serum prolactin responses to submaximal exercise were affected by 8 weeks of intensive training (5 cl/wk, 90 min/d 65-200% V0₂max). Nine males performed 90 minute continuous exercise bouts (cycle ergometry; 65% V0₂ max) at the end of 1, 4, and 8 weeks of training. Blood samples were obtained pre-training, and pre-, post-exercise. Significant differences were not seen in pre- and post-exercise prolactin levels at weeks 1 and 4. However, at week 8 the post-exercise prolatin was significantly greater than the pre-exercise levels (6.8 ± 0.9 vs 3.8 ± 1.0 ng·ml^-1; P-1, respectively). The findings suggest intensive training results in a relative augmentation of the post-exercise prolactin response; however, this effect seems to be due primarily to the training induced lowered resting prolactin levels.

Publication Date

June 1989

Journal Title

Journal of the Iowa Academy of Science

Volume

96

Issue

2

First Page

52

Last Page

53

Copyright

© Copyright 1989 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

Recommended Citation

Hackney, A. C.; Sharp, R. L.; Runyan, W. S.; and Ness, R. J. (1989) "Effects of Intensive Training on Prolactin Responses to Submaximal Exercise in Males," Journal of the Iowa Academy of Science: JIAS, 96(2), 52-53.
Available at: https://scholarworks.uni.edu/jias/vol96/iss2/5