alexa Effects Of Menstrual Cycle On Sweating During Exercise Performed In Hot And Dry Environment | OMICS International | Abstract
ISSN: 2168-9652

Biochemistry & Physiology: Open Access
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Special Issue Article

Effects Of Menstrual Cycle On Sweating During Exercise Performed In Hot And Dry Environment

Mariella G Lacerda1, Alessandra MC Garcia1, Cynthia Dela Cruz2, Juliana C Calcagno2, Fernando M Reis2* and Emerson Silami-Garcia1
1Laboratory of Exercise Physiology, Department of Physical Education, Federal University of Minas Gerais, Brazil
2Department of Obstetrics and Gynecology, Federal University of Minas Gerais and National Institute of Hormones and Women´s Health, Belo Horizonte, Brazil
*Corresponding Author : Fernando M Reis, M.D., Ph.D.
Division of Human Reproduction
Department of Ob/Gyn Hospital das Clínicas
UFMG, Av. Alfredo Balena, 110
9° andar 30130-100 Belo Horizonte, MG, Brazil
Tel: 55 31 3409-9485
Fax: 55 31 3409-9299
E-mail: [email protected]
Received February 18, 2013; Accepted April 23, 2013; Published April 26, 2013
Citation: Lacerda MG, Garcia AMC, Cruz CD, Calcagno JC, Reis FM, et al.(2013) Effects of Menstrual Cycle on Sweating During Exercise Performed In Hot and Dry Environment. Biochem Physiol S3:001. doi:10.4172/2168-9652.S3-001
Copyright: © 2013 Lacerda MG, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The aim of this study was to compare the local and global sweat rates between the follicular and luteal phases of ovulatory cycles during a progressive exercise until exhaustion, held in a warm and dry environment. Eight women found to be healthy after undergoing a physical examination and with regular, ovulatory menstrual cycles participated in this study. The exercise was performed on a cycle ergometer according to the American College of Sports Medicine protocol. The test began with a power of 50 watts in increments of 25 watts every 2 minutes until exhaustion, while maintaining a speed of 50 rpm. The local sweating rate was measured using filter paper and the global sweating rate was estimated using body weight. Ovulation was detected both by serial transvaginal ultrasonography and serum progesterone measurement. Rectal temperature was higher in the luteal phase (37.54 ± 0.03ºC) when compared with the follicular phase (37.28 ± 0.05ºC, p<0.05) and increased significantly following exercise at both phases of menstrual cycle. The local and global sweat rates during exercise did not differ between the follicular phase (local 0.368 ± 0.111; global 3.03 ± 0.17 g.m-2.min-1) and the luteal phase (local 0.240 ± 0.063; global 3.20 ± 0.39 g.m-2.min-1) of menstrual cycle. Also in the recovery period after exercise, there were no differences in the sweat rate according to menstrual cycle phase (p>0.05). In conclusion, under the environmental conditions tested in this study, the local and global sweat rates elicited by progressive exercise to exhaustion were not influenced by the phases of the menstrual cycle.

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