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Horm Metab Res 1986; 18(3): 206-208
DOI: 10.1055/s-2007-1012272
Clinical

© Georg Thieme Verlag, Stuttgart · New York

Effect of Physical Conditioning on Measures of Thyroid Hormone Action

P. J. Caron, G. Sopko, J. M. Stolk, D. R. Jacobs, B. C. Nisula
  • Developmental Endocrinology Branch, National Institute of Child Health and Human Development, Bethesda, Maryland, Department of Medicine and Laboratory of Physiological Hygiene, University of Minnesota, Minneapolis, Minnesota, and Maryland Psychiatric Research Center, University of Maryland School of Medicine, Baltimore, Maryland, U.S.A.
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Publication History

1984

1984

Publication Date:
14 March 2008 (online)

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Summary

Serum thyroid function tests (T4, T3, rT3 and TSH levels) and measures of peripheral thyroid hormone action (serum dopamine-β-hydroxylase activity (DBH) and sex hormone binding globulin (SHBG)) were determined in 6 women before and one month after initiating an aerobic physical conditioning program. The same measurements were made in a control group of 6 women who did not increase their activity during this time. In physically conditioned subjects, the resting heart rate decreased from 65.1 ± 3.9 (mean ± SE) at baseline to 58.0 ± 2.9 beats per minute after one month (P < 0.025), indicating an appreciable state of physical conditioning was achieved. However, there were no statistically significant changes in thyroid function test, serum DBH or SHBG levels in either the physically conditioned or the control group. These data indicate that being physically conditioned has a negligible effect on thyroid status.

Key-Words

Exercise - Thyroid - Thyrotropin - Dopamine-β-Hydroxylase - Sex Hormone Binding Globulin - Physical Conditioning