Does oral contraceptive use affect maximum force production in women?

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 part. All pill using subjects had been taking a combined, monophasic oral contraceptive pill for at l...

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Bibliographic Details
Published in:British journal of sports medicine 2005-01, Vol.39 (1), p.15-19
Main Authors: Elliott, K J, Cable, N T, Reilly, T
Format: Article
Language:English
Subjects:
Adult
Birth control
consumption
Contraceptives, Oral, Combined - adverse effects
Down-Regulation - drug effects
early follicular
Enzyme-Linked Immunosorbent Assay - methods
Estradiol - blood
FDI
Female
first dorsal interosseus
follicle stimulating hormone
Follicular Phase - physiology
FSH
GnRH
gonadotropin releasing hormone
Health risk assessment
Hormone replacement therapy
HRT
Human performance
Humans
Laboratories
Luteal Phase - physiology
lutenising hormone
maximum dynamic and isometric force of the quadriceps and hamstring muscles
maximum voluntary isometric force
maximum voluntary isometric force of the FDI muscle
Menopause
Menstrual Cycle - physiology
Menstruation
mid-luteal
Muscle Fatigue - drug effects
muscle strength
Muscle, Skeletal - physiology
MVIF
oestrogen
oral contraceptives
Original
progesterone
Progesterone - blood
Studies
withdrawal
Womens health
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Summary: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 part. All pill using subjects had been taking a 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
ISSN:0306-3674
1473-0480
DOI:10.1136/bjsm.2003.009886