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Year : 2016  |  Volume : 5  |  Issue : 4  |  Page : 822-824

Effect of female sex hormones on cardiorespiratory parameters

Department of Physiology, Bharati Vidyapeeth Medical College, Pune, Maharashtra, India

Correspondence Address:
Gayatri Godbole
Plot No. 1, Parijat Society, Bibwewadi Road, Pune - 411 037, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2249-4863.201148

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Introduction: Female sex hormones, estrogen and progesterone regulate various phases of the menstrual cycle. Hormonal changes tend to affect various parameters of physical fitness. Maximum oxygen uptake (VO2 max) is a measure of aerobic power. This study was planned to assess effect of different phases of menstrual cycle on cardiorespiratory parameters like pulse rate, respiratory rate and VO2 max. Methods: 100 female medical students in the age group of 17-22 years were studied for three consecutive menstrual cycles. Weight, resting pulse rate, respiratory rate and VO2 max were measured during premenstrual phase (20th-25th day) and postmenstrual phase (5th to 10th day). Results: It was observed that there was a significant increase in body weight, pulse rate, and respiratory rate during premenstrual phase. There was a decrease in VO2 max during the premenstrual phase. Conclusion: This study indicates that there is decreased cardio-respiratory efficiency during premenstrual phase.

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