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Year : 2013  |  Volume : 27  |  Issue : 1  |  Page : 43-45

Adaptability of the pulmonary system to exercise in proliferative phase of the menstrual cycle in a group of perimenopausal women: A preliminary study

1 Department of Physiology, PES Institute of Medical Sciences and Research, Kuppam, Andhra Pradesh, India
2 Department of Anesthesiology, Basaveshwara Medical College, Chitradurga, Karnataka, India
3 Department of Physiology, Basaveshwara Medical College, Chitradurga, Karnataka, India

Correspondence Address:
Amrith Pakkala
Department of Physiology, PES Institute of Medical Sciences and Research, Kuppam, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-4958.116639

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Background: The role of estrogen on pulmonary function tests was well-known in the normal course of the menstrual cycle. Significant increases in both progesterone (37%) and estradiol (13.5%), whereas no change in plasma follicle stimulating hormone and leutinizing hormone FSH and LH was observed in exercising women in previous studies [10],[11] Therefore, this study was intended to see the limitations of the pulmonary system in adaptability to exercise in the proliferative phase of the menstrual cycle in perimenopausal women. Materials and Methods: Healthy young adult females between 42 years and 45 years who regularly undergo training and participate in competitive middle distance running events for at least past 3 years were considered in the athlete group, whereas the non-athlete group did not have any such regular exercise program. The two groups were in perimenopausal age group. They were made to undergo computerized spirometry after undergoing maximal exercise testing on a motorized treadmill. Results: It was observed that exercise per se does not cause a statistically significant change in dynamic lung function parameters maximum mid expiratory flow rate MMEF, peak expiratory flow rate, mid expiratory flow 25% to 75% in either of the groups. Discussion: This finding supports the hypothesis that the respiratory system is not normally the most limiting factor in the delivery of oxygen even under the predominant influence of estrogen in proliferative phase, which is further accentuated by exercise.

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