Why the study?
Do different phases of the menstrual cycle affect skeletal muscle strength, contractile properties, and fatiguability in young healthy females compared to those on oral contraceptives?
Population
Young, healthy females not taking oral contraceptives, and a similar group taking the combined oral…
Comparison
Natural menstrual cycle phases vs Combined (non-phasic) oral contraceptive pill (OC)
Design
Cohort
Follow-up
two complete cycles
Authors
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Menstrual cycle phase may influence muscle performance in naturally cycling women; hypothesis-generating for cycle-specific training before practice change.
Do different phases of the menstrual cycle affect skeletal muscle strength, contractile properties, and fatiguability in young healthy females compared to those on oral contraceptives?
Muscle strength increases and relaxation slows at mid-cycle in naturally cycling women, likely due to estrogen peaks, whereas oral contraceptives abolish these fluctuations.
Sarwar et al. (1996) studied this question.
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