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Does oral contraceptive use affect maximum force production in women?
- Source :
- British Journal of Sports Medicine; Jan2005, Vol. 39 Issue 1, p15-19, 5p, 4 Charts, 2 Graphs
- Publication Year :
- 2005
-
Abstract
- Objective: To examine the effects of oral contraceptive use on maximum force production in young women. Methods: In the study, 21 female subjects (14 pill users and seven eumenorrheic controls) took port. All pill using subjects had been taking o combined, monophasic oral contraceptive pill for at least 6 months. Maximum dynamic and isometric leg strength, maximum isometric strength of the first dorsal interosseus (FDI) muscle, and plasma concentrations of oestradiol and progesterone were measured on days 7 and 14 of pill consumption and day 5 of pill withdrawal. The eumenorrheic group was tested (FDI strength and hormone concentrations) on days 2 and 21 of the menstrual cycle. Results: There were no significant changes in the concentration of endogenous oestradiol or progesterone or any measure of muscle strength between pill phases (p < 0.05). The pill group did not significantly differ from the eumenorrheic group (p < 0.05), despite a significant increase in the concentration of progesterone and oestradiol on day 21 of the menstrual cycle compared with day 2 of the menstrual cycle and pill consumption and withdrawal (p < 0.05). Conclusions: These data suggest that oral contraceptive use does not significantly affect muscle strength. Moreover, oral contraceptive users were not stronger or weaker than their eumenorrheic counterparts. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03063674
- Volume :
- 39
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- British Journal of Sports Medicine
- Publication Type :
- Academic Journal
- Accession number :
- 16165491
- Full Text :
- https://doi.org/10.1136/bjsm.2003.009886