Citation
Evenson, Kelly R.; Calhoun, Kathryn C.; Herring, Amy H.; Pritchard, David A.; Wen, Fang; & Steiner, Anne Z. (2014). Association of Physical Activity in the Past Year and Immediately after In Vitro Fertilization on Pregnancy. Fertility and Sterility, 101(4), 1047-54; e1-5. PMCID: PMC3982290Abstract
OBJECTIVE: To estimate the association of physical activity on in vitro fertilization (IVF).DESIGN: Prospective cohort study.
SETTING: Academic infertility clinic.
PATIENT(S): Women (n = 121) undergoing nondonor IVF embryo transfer (fresh or frozen).
INTERVENTION(S): The women completed a questionnaire on past year physical activity and wore an accelerometer from embryo transfer to serum pregnancy testing.
MAIN OUTCOME MEASURE(S): Implantation, intrauterine gestation, and live birth.
RESULT(S): Based on self-reported past year physical activity, the adjusted odds of intrauterine gestation was higher among those that had higher continuous active living (odds ratio [OR] 1.96, 95% confidence interval [CI] 1.09-3.50), sports/exercise (OR 1.48, CI 1.02-2.15), and total activity (OR 1.52, 95%CI 1.15-2.01) indices. After embryo transfer, women did almost no vigorous activity (median 0 min/d) as measured by the accelerometer. More of their time was spent in light activity (median 3.0 h/d) and sedentary behaviors (median 9.3 h/d). Accelerometer-measured physical activity and sedentary behavior after embryo transfer were not associated with any IVF outcome.
CONCLUSION(S): An active lifestyle in the preceding year favorably impacted the IVF outcome. After embryo transfer, women engaged in mostly light physical activity and sedentary behaviors; therefore, the impact of vigorous physical activity on implantation could not be determined.
URL
http://dx.doi.org/10.1016/j.fertnstert.2013.12.041Reference Type
Journal ArticleYear Published
2014Journal Title
Fertility and SterilityAuthor(s)
Evenson, Kelly R.Calhoun, Kathryn C.
Herring, Amy H.
Pritchard, David A.
Wen, Fang
Steiner, Anne Z.