Effect of resistance exercise on muscle steroidogenesis

Jakob L. Vingren, William J. Kraemer, Disa L. Hatfield, Jeffrey M. Anderson, Jeff S. Volek, Nicholas A. Ratamess, Gwendolyn A. Thomas, Jen Yu Ho, Maren S. Fragala, Carl M. Maresh

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Circulating testosterone is elevated acutely following resistance exercise (RE) and is an important anabolic hormone for muscle adaptations to resistance training. The purpose of this study was to examine the acute effect of heavy RE on intracrine muscle testosterone production in young resistance-trained men and women. Fifteen young, highly resistance-trained men (n = 8; 21 ± 1 yr, 175.3 ± 6.7 cm, 90.8 ± 11.6 kg) and women (n =7; 24 ± 5 yr, 164.6 ± 6.7 cm, 76.4 ± 15.6 kg) completed 6 sets of 10 repetitions of Smith machine squats with 80% of their 1-repetition maximum. Before RE and 10 and 70 min after RE, muscle biopsies were obtained from the vastus lateralis. Before RE, after 3 and 6 sets of squats, and 5, 15, 30, and 70 min into recovery from RE, blood samples were obtained using venipuncture from an antecubital vein. Muscle samples were analyzed for testosterone, 17β-hydroxysteroid dehydrogenase (HSD) type 3, and 3β-HSD type 1 and 2 content. Blood samples were analyzed for glucose and lactate concentrations. No changes were found for muscle testosterone, 3β-HSD type 1 and 2, and 17β-HSD type 3 concentrations. However, a change in protein migration in the Bis-Tris gel was observed for 17β-HSD type 3 postexercise; this change in migration indicated an ∼2.8 kDa increase in molecular mass. These findings indicate that species differences in muscle testosterone production may exist between rats and humans. In humans, muscle testosterone concentrations do not appear to be affected by RE. This study expands on the current knowledge obtained from animal studies by examining resting and postexercise concentrations of muscle testosterone and steroidogenic enzymes in humans.

Original languageEnglish
Pages (from-to)1754-1760
Number of pages7
JournalJournal of Applied Physiology
Volume105
Issue number6
DOIs
Publication statusPublished - 2008 Dec 1

Fingerprint

Testosterone
Exercise
Muscles
Phlebotomy
Resistance Training
Quadriceps Muscle
Veins
Lactic Acid
Gels
3(17)-hydroxysteroid dehydrogenase
Hormones
Biopsy
Glucose
Enzymes
Proteins

Keywords

  • Hydroxysteroid dehydrogenase
  • Intracrine
  • Testosterone

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

Cite this

Vingren, J. L., Kraemer, W. J., Hatfield, D. L., Anderson, J. M., Volek, J. S., Ratamess, N. A., ... Maresh, C. M. (2008). Effect of resistance exercise on muscle steroidogenesis. Journal of Applied Physiology, 105(6), 1754-1760. https://doi.org/10.1152/japplphysiol.91235.2008

Effect of resistance exercise on muscle steroidogenesis. / Vingren, Jakob L.; Kraemer, William J.; Hatfield, Disa L.; Anderson, Jeffrey M.; Volek, Jeff S.; Ratamess, Nicholas A.; Thomas, Gwendolyn A.; Ho, Jen Yu; Fragala, Maren S.; Maresh, Carl M.

In: Journal of Applied Physiology, Vol. 105, No. 6, 01.12.2008, p. 1754-1760.

Research output: Contribution to journalArticle

Vingren, JL, Kraemer, WJ, Hatfield, DL, Anderson, JM, Volek, JS, Ratamess, NA, Thomas, GA, Ho, JY, Fragala, MS & Maresh, CM 2008, 'Effect of resistance exercise on muscle steroidogenesis', Journal of Applied Physiology, vol. 105, no. 6, pp. 1754-1760. https://doi.org/10.1152/japplphysiol.91235.2008
Vingren JL, Kraemer WJ, Hatfield DL, Anderson JM, Volek JS, Ratamess NA et al. Effect of resistance exercise on muscle steroidogenesis. Journal of Applied Physiology. 2008 Dec 1;105(6):1754-1760. https://doi.org/10.1152/japplphysiol.91235.2008
Vingren, Jakob L. ; Kraemer, William J. ; Hatfield, Disa L. ; Anderson, Jeffrey M. ; Volek, Jeff S. ; Ratamess, Nicholas A. ; Thomas, Gwendolyn A. ; Ho, Jen Yu ; Fragala, Maren S. ; Maresh, Carl M. / Effect of resistance exercise on muscle steroidogenesis. In: Journal of Applied Physiology. 2008 ; Vol. 105, No. 6. pp. 1754-1760.
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