| Titel: | Postural Influences on the Hormone Level in Healthy Subjects: I. The Cobra Posture and Steroid Hormones |
|---|---|
| Autor: | Ivanov, AI Nozdrachev, AD Minvaleev, RS Kir'yanova, VV |
| Mediengruppe: | journal article |
| Herausgeber: | --- |
| Zeitschrift: | Human Physiology |
| Jahr: | 2004 |
| Band: | 30 |
| Heft: | 4 |
| Seiten: | 452 - 456 |
| Sprache: | englisch |
| 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. |