Erschienen in:
01.08.2017 | Short Communication
Influence of sex, menstrual cycle, and oral contraceptives on the cerebrovascular response to paced deep breathing
verfasst von:
Misha Nili, Syed Abidi, Stephania Serna, Simon Kim, Heather Edgell
Erschienen in:
Clinical Autonomic Research
|
Ausgabe 6/2017
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Abstract
Purpose
Deep breathing assesses autonomic function; however, many researchers/clinicians do not account for hyperventilation, brain blood flow or blood pressure.
Methods
Men and women (with/without oral contraceptives) participated. women participated during low and high hormone phases of the menstrual cycle. Blood pressure, end-tidal carbon dioxide, middle cerebral artery velocity and cerebrovascular resistance were assessed.
Results
Deep breathing decreased end-tidal carbon dioxide and middle cerebral artery velocity while increasing cerebrovascular resistance in all participants; blood pressure decreased in men. There were no influences of menstrual cycle or oral contraceptives.
Conclusions
Men have different autonomic responses to deep breathing compared to women.