Immune Response in Women during Exercise in the Heat: A Spotlight on Oral Contraception

Larsen, Brianna and Cox, Amanda and Quinn, Karlee and Fisher, Rhiannon and Minahan, Clare (2018) Immune Response in Women during Exercise in the Heat: A Spotlight on Oral Contraception. Journal of Sports Science and Medicine, 17 (2). pp. 229-236. ISSN 1303-2968

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Abstract

This study compared the immune and stress response of oral contraceptive users (WomenOC; n = 9) to normally-menstruating women (WomenNM; n = 9) at rest and during exercise in temperate (TEMP; 22°C) and hot (HEAT; 35°C) conditions. Participants performed a 3-stage cycling trial in each condition at 90% (Stage 1; 30 min), 135% (Stage 2; 15 min), and 180% (Stage 3; 7.5 min) of lactate threshold 1. C-reactive protein (CRP) and immune cell counts were measured at rest, and serum cytokines (IL-1β, IL-1RA, IL-6, IL-8, IL-10, and TNF-α) and salivary cortisol were evaluated before and after exercise in both the TEMP and HEAT conditions. There were no differences in resting immune cell counts between groups, nor any differences in cortisol or any of the pro- or anti-inflammatory cytokines measured at rest or after completion of the exercise trials (p > 0.05). However, a trend for a higher resting CRP concentration was observed in WomenOC relative to WomenNM (1.102 ± 1.182 and 0.326 ± 0.228, respectively, p = 0.07). The results obtained in the current study indicate similar immunoendocrine function in WomenOC and WomenNM both at rest and after exercise in temperate and hot environments.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Date Deposited: 16 Sep 2020 04:36
Last Modified: 24 Sep 2020 06:05
Uncontrolled Keywords: Cytokines, cortisol, C-reactive protein, core temperature, ovarian hormones
Fields of Research (2008): 11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110602 Exercise Physiology
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110604 Sports Medicine
Socio-Economic Objectives (2008): C Society > 92 Health > 9205 Specific Population Health (excl. Indigenous Health) > 920507 Women's Health
URI: http://eprints.usq.edu.au/id/eprint/39580

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