1. A prospective cohort study of physical activity and time to pregnancy
Lauren A. Wise, Sc.D., Kenneth J. Rothman, Dr.P.H., Ellen M. Mikkelsen, Ph.D., Henrik Toft Sørensen, M.D., Anders H. Riis, M.S., Elizabeth E. Hatch, Ph.D. 
Fertility and Sterility 
Volume 97, Issue 5, Pages e4 (May 2012)
DOI: /j.fertnstert
Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Association between hours of vigorous physical activity per week and fecundability, fitted by restricted cubic splines. The reference level for the fecundability ratio is 0 hours/week. The curves are adjusted for cycle number, age, partner's age, body mass index, alcohol consumption, pack-years of smoking, intercourse frequency, last method of contraception, and hours of moderate physical activity per week. There were five knot points located at 0.5, 1, 2, 3, and 4 h/wk.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions

3. Supplemental Figure 1
Association between hours of vigorous physical activity per week and fecundability among women with body mass index (BMI) <25 kg/m2, fitted by restricted cubic splines. The reference level for the fecundability ratio is 0 h/wk. The curves are adjusted for cycle number, age, partner's age, BMI (continuous), alcohol consumption, pack-years of smoking, intercourse frequency, last method of contraception, and hours of moderate physical activity per week. There were four knot points located at 0.5, 1, 2, and 3 h/wk.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions

4. Supplemental Figure 2
Association between hours of vigorous physical activity per week and fecundability among women with body mass index (BMI) ≥25 kg/m2, fitted by restricted cubic splines. The reference level for the fecun-dability ratio is 0 h/wk. The curves are adjusted for cycle number, age, partner's age, BMI (continuous), alcohol consumption, pack-years of smoking, intercourse frequency, last method of con-traception, and hours of moderate physical activity per week. There were 4 knot points located at 0.5, 1, 2, and 3 h/wk.
Fertility and Sterility  , e4DOI: ( /j.fertnstert )
Copyright © 2012 American Society for Reproductive Medicine Terms and Conditions