Effect of female sex hormones on cardiorespiratory parameters.
prospective_cohort · Level II
Where this comes from
- Record sourced from PubMed, PMID 28348998.
- Also identified by DOI 10.4103/2249-4863.201148 and PMC identifier PMC299386.
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Abstract
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.