The effect of physical activity across the menstrual cycle on reproductive function.

ABSTRACT:

Purpose

To evaluate the association between physical activity (PA) across the menstrual cycle and reproductive function.

Methods

The BioCycle Study (2005-2007) followed 259 healthy premenopausal women not using hormonal contraceptives for up to two menstrual cycles (N = 509 cycles). Serum leptin, estradiol, progesterone, luteinizing hormone, follicle-stimulating hormone, and testosterone were measured five to eight times per cycle. Linear mixed models were used to estimate the effect of past-week PA (measured four times during each cycle) on hormone levels. Past-week PA was categorized into tertiles based on metabolic equivalent of task hours per week (cut-points were 15.3 and 35.7). Risk ratios for sporadic anovulation were estimated using generalized linear models. Analyse

SUBMITTER: Ahrens KA 

PROVIDER: S-EPMC3946734 | biostudies-literature | 2014 Feb

REPOSITORIES: biostudies-literature