Hormonal Contraceptive Use Does Not Affect Strength, Endurance, or Body Composition Adaptations to Combined Strength and Endurance Training in Women.

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Publisher: National Strength and Conditioning Association
Document Type: Article
Length: 439 words

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Byline: Moona M. Myllyaho, Biology of Physical Activity, Faculty of Sport and Health Sciences, University of JyvÈñskylÈñ, JyvÈñskylÈñ, Finland;; Johanna K. Ihalainen, Biology of Physical Activity, Faculty of Sport and Health Sciences, University of JyvÈñskylÈñ, JyvÈñskylÈñ, Finland;; Anthony C. Hackney, Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, North Carolina;, Department of Nutrition, University of North Carolina, Chapel Hill, North Carolina;; Maarit Valtonen, Research Institute for Olympic Sport, JyvÈñskylÈñ, Finland;; Ari Nummela, Research Institute for Olympic Sport, JyvÈñskylÈñ, Finland;; Elina Vaara, JAMK University of Applied Sciences, JyvÈñskylÈñ, Finland; and; Keijo HÈñkkinen, Biology of Physical Activity, Faculty of Sport and Health Sciences, University of JyvÈñskylÈñ, JyvÈñskylÈñ, Finland;; Heikki KyrȵlÈñinen, Biology of Physical Activity, Faculty of Sport and Health Sciences, University of JyvÈñskylÈñ, JyvÈñskylÈñ, Finland;; Ritva S. Taipale, Kajaani University of Applied Sciences, Kajaani, Finland Abstract Myllyaho, MM, Ihalainen, JK, Hackney, AC, Valtonen, M, Nummela, A, Vaara, E, HÈñkkinen, K, KyrȵlÈñinen, H, and Taipale, RS. Hormonal contraceptive use does not affect strength, endurance, or body composition adaptations to combined strength and endurance training in women. J Strength Cond Res 35(2): 449-457, 2021--This study examined the effects of a 10-week period of high-intensity combined strength and endurance training on strength, endurance, body composition, and serum hormone concentrations in physically active women using hormonal contraceptives (HCs, n = 9) compared with those who had never used hormonal contraceptives (NHCs, n = 9). Training consisted of 2 strength training sessions and 2 high-intensity running interval sessions per week. Maximal bilateral isometric leg press (Isom), maximal bilateral dynamic leg press (one repetition maximum [1RM]), countermovement jump (CMJ), a 3,000-m running test (3,000 m), body composition, and serum hormone levels were measured before and after training between days 1-5 of each subject's menstrual cycle. Both groups increased 1RM and CMJ: HC = 13.2% (p

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Gale Document Number: GALE|A671307760