Effect of the menstrual cycle on performance of intermittent, high-intensity shuttle running in a hot environment

Sunderland, C. ORCID: 0000-0001-7484-1345 and Nevill, M.E. ORCID: 0000-0003-2498-9493, 2003. Effect of the menstrual cycle on performance of intermittent, high-intensity shuttle running in a hot environment. European Journal of Applied Physiology, 88 (45), pp. 345-352. ISSN 1439-6319

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The present study examined the impact of the menstrual cycle and oral contraceptive use on performance of high intensity intermittent running in the heat [31.0 (0.2) oC; 23.1 (0.9) % RH]. Seven normally menstruating women (NM) and 8 oral contraceptive (OC) users participated in the study. Two trials were undertaken near the predicted mid-point of the follicular (FT) and luteal (LT) phases of the menstrual cycle and the equivalent days for the oral contraceptive users. Basal serum progesterone concentrations were higher during the LT for the NM group [FT: 2.42 (0.28) vs. LT: 25.96 (11.28) nmol.l-1; P<0.05], but were not different for the OC [1-14: 2.79 (0.38) vs. 15-28: 2.61 (0.32) nmol.l-1]. There were no differences in distance run between menstrual cycle phases or between the normally menstruating and oral contraceptive groups [NM FT: 6257 (1401) vs. LT: 5861 (1035) m]. However the OC ran further in the days 15-28 compared to days 1-14 [OC 1-14: 5481 (612) vs 15-28: 6615 (893) m, P<0.05]. For the NM, rectal temperature, perceived exertion, estimated SR, serum growth hormone, plasma lactate, ammonia and glucose did not differ between phases of the menstrual cycle. For the OC, heart rate, perceived exertion, sweat rate, plasma lactate and ammonia did not differ between days 1- 14 of oral contraceptive use and days 15-28. However rectal temperature was higher (P<0.05) and growth hormone tended to be higher (P=0.05) during days 15-28, while plasma glucose was lower (P<0.05). These results demonstrate that for unacclimatised games players the performance of intermittent, high intensity shuttle running in the heat is unaffected by menstrual cycle phase but is influenced by oral contraceptive use.

Item Type: Journal article
Description: The original publication is available at www.springerlink.com
Publication Title: European Journal of Applied Physiology
Creators: Sunderland, C. and Nevill, M.E.
Publisher: Springer Verlag
Place of Publication: New York
Date: 2003
Volume: 88
Number: 45
ISSN: 1439-6319
Rights: © 2003 Springer Verlag
Divisions: Schools > School of Science and Technology
Record created by: EPrints Services
Date Added: 09 Oct 2015 10:28
Last Modified: 06 Feb 2019 09:35
URI: https://irep.ntu.ac.uk/id/eprint/13523

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