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Human Physiology

, Volume 30, Issue 4, pp 452–456 | Cite as

Postural Influences on the Hormone Level in Healthy Subjects: I. The Cobra Posture and Steroid Hormones

  • R. S. Minvaleev
  • A. D. Nozdrachev
  • V. V. Kir'yanova
  • A. I. Ivanov
Article

Abstract

Cortisol, testosterone, dehydroepiandrosterone (DHEA), and aldosterone were measured in the blood serum of healthy subjects who adopted the cobra posture (bhujangasana), a key posture of hatha yoga. The subjects were trained in yoga; blood samples were taken before and after the exercise at an interval of no more than 5 min. As revealed with a new confidence interval–evaluating method developed by A.I. Ivanov, cortisol decreased by 11% with a reliability of 0.99 in all subjects, while testosterone increased by 16% with a reliability of 0.95. Changes in DHEA and aldosterone varied. Proceeding from ideas about motor–visceral interactions, the authors hypothesize that, when the subjects adopted the cobra posture, the production of steroid hormones was controlled by neural mechanisms.

Keywords

Steroid Blood Sample Cortisol Testosterone Healthy Subject 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MAIK “Nauka/Interperiodica” 2004

Authors and Affiliations

  • R. S. Minvaleev
    • 1
  • A. D. Nozdrachev
    • 1
  • V. V. Kir'yanova
    • 2
  • A. I. Ivanov
    • 1
  1. 1.St. Petersburg State UniversitySt. PetersburgRussia
  2. 2.St. Petersburg Medical Academy of Postgraduate StudiesSt. PetersburgRussia

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