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Does ovulation affect performance in tennis players?

Background Scientific data on the performance of collegiate female tennis players during the menstrual phases are scarce. Trial design Double-blind, counter-balanced, crossover trials were conducted to examine whether tennis performance was affected during menstruation, with and without dehydroepian...

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Main Authors:	Otaka, Machiko, Chen, Shu Man, Zhu, Yong, Tsai, Yung Shen, Tseng, Ching Yu, Fogt, Donovan L, Lim, Boon Hooi, Huang, Chih Yang, Kuo, Chia Hua
Format:	Article
Published:	BMJ Publishing Group 2018
Subjects:	GV Recreation Leisure
Online Access:	http://eprints.um.edu.my/21053/ https://doi.org/10.1136/bmjsem-2017-000305
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id	my.um.eprints.21053
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spelling	my.um.eprints.210532019-04-24T04:46:51Z http://eprints.um.edu.my/21053/ Does ovulation affect performance in tennis players? Otaka, Machiko Chen, Shu Man Zhu, Yong Tsai, Yung Shen Tseng, Ching Yu Fogt, Donovan L Lim, Boon Hooi Huang, Chih Yang Kuo, Chia Hua GV Recreation Leisure Background Scientific data on the performance of collegiate female tennis players during the menstrual phases are scarce. Trial design Double-blind, counter-balanced, crossover trials were conducted to examine whether tennis performance was affected during menstruation, with and without dehydroepiandrosterone sulfate (DHEA-S) supplementation. Methods Ten Division 1 collegiate tennis players (aged 18-22 years) were evenly assigned into placebo-supplemented and DHEA-supplemented (25 mg/day) trials. Treatments were exchanged among the participants after a 28-day washout. Tennis serve performance was assessed on the first day of menstrual bleeding (day 0/28) and on days 7, 14 and 21. Results Mood state was unaltered during the menstrual cycles in both trials. The lowest tennis serve performance score (speed times accuracy) occurred on day 14 (P=0.06 vs day 0; P=0.01 vs day 21) in both placebo and DHEA trials. Decreased performance on day 14 was explained by decreased accuracy (P=0.03 vs day 0/28; P=0.01 vs day 21), but not velocity itself. Isometric hip strength, but not quadriceps strength, was moderately lower on day 14 (P=0.08). Increasing plasma DHEA-S (by ∼65%) during the DHEA-supplemented trial had no effects on mood state, sleep quality or tennis serve performance. Conclusion We have shown that menses does not affect serve performance of collegiate tennis players. However, the observed decrement in the accuracy of serve speed near ovulation warrants further investigation. BMJ Publishing Group 2018 Article PeerReviewed Otaka, Machiko and Chen, Shu Man and Zhu, Yong and Tsai, Yung Shen and Tseng, Ching Yu and Fogt, Donovan L and Lim, Boon Hooi and Huang, Chih Yang and Kuo, Chia Hua (2018) Does ovulation affect performance in tennis players? BMJ Open Sport & Exercise Medicine, 4 (1). e000305. ISSN 2055-7647 https://doi.org/10.1136/bmjsem-2017-000305 doi:10.1136/bmjsem-2017-000305
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	GV Recreation Leisure
spellingShingle	GV Recreation Leisure Otaka, Machiko Chen, Shu Man Zhu, Yong Tsai, Yung Shen Tseng, Ching Yu Fogt, Donovan L Lim, Boon Hooi Huang, Chih Yang Kuo, Chia Hua Does ovulation affect performance in tennis players?
description	Background Scientific data on the performance of collegiate female tennis players during the menstrual phases are scarce. Trial design Double-blind, counter-balanced, crossover trials were conducted to examine whether tennis performance was affected during menstruation, with and without dehydroepiandrosterone sulfate (DHEA-S) supplementation. Methods Ten Division 1 collegiate tennis players (aged 18-22 years) were evenly assigned into placebo-supplemented and DHEA-supplemented (25 mg/day) trials. Treatments were exchanged among the participants after a 28-day washout. Tennis serve performance was assessed on the first day of menstrual bleeding (day 0/28) and on days 7, 14 and 21. Results Mood state was unaltered during the menstrual cycles in both trials. The lowest tennis serve performance score (speed times accuracy) occurred on day 14 (P=0.06 vs day 0; P=0.01 vs day 21) in both placebo and DHEA trials. Decreased performance on day 14 was explained by decreased accuracy (P=0.03 vs day 0/28; P=0.01 vs day 21), but not velocity itself. Isometric hip strength, but not quadriceps strength, was moderately lower on day 14 (P=0.08). Increasing plasma DHEA-S (by ∼65%) during the DHEA-supplemented trial had no effects on mood state, sleep quality or tennis serve performance. Conclusion We have shown that menses does not affect serve performance of collegiate tennis players. However, the observed decrement in the accuracy of serve speed near ovulation warrants further investigation.
format	Article
author	Otaka, Machiko Chen, Shu Man Zhu, Yong Tsai, Yung Shen Tseng, Ching Yu Fogt, Donovan L Lim, Boon Hooi Huang, Chih Yang Kuo, Chia Hua
author_facet	Otaka, Machiko Chen, Shu Man Zhu, Yong Tsai, Yung Shen Tseng, Ching Yu Fogt, Donovan L Lim, Boon Hooi Huang, Chih Yang Kuo, Chia Hua
author_sort	Otaka, Machiko
title	Does ovulation affect performance in tennis players?
title_short	Does ovulation affect performance in tennis players?
title_full	Does ovulation affect performance in tennis players?
title_fullStr	Does ovulation affect performance in tennis players?
title_full_unstemmed	Does ovulation affect performance in tennis players?
title_sort	does ovulation affect performance in tennis players?
publisher	BMJ Publishing Group
publishDate	2018
url	http://eprints.um.edu.my/21053/ https://doi.org/10.1136/bmjsem-2017-000305
_version_	1643691452957458432
score	13.211869

Does ovulation affect performance in tennis players?

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