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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Ann Epidemiol. 2013 Nov 15;24(2):127–134. doi: 10.1016/j.annepidem.2013.11.002

Figure 1.

Figure 1

Geometric mean hormone concentrations across a standardized 28-day menstrual cycle by average past-week physical activity within each cycle: lowest tertile (median=9, maximum =15 MET-h/week; solid line), middle tertile (median=24 MET-h/week; dashed line) and highest tertile (median=66, minimum=37 MET-h/week; dotted line).

PA= physical activity; LH= luteinizing hormone; FSH= follicle-stimulating hormone

* P-value < 0.05; geometric means were estimated and p-values were assessed using unadjusted linear mixed models. Significant differences were observed for progesterone (day 7: middle < highest tertile); LH (days 7, 14, 18, 22: lowest < highest tertile); and leptin (days 2, 7, 13, 18, 27: lowest > highest tertile; days 7, 14, 18: middle > highest tertile).