Format

Send to

Choose Destination
Fertil Steril. 2014 Apr;101(4):1047-1054.e5. doi: 10.1016/j.fertnstert.2013.12.041. Epub 2014 Feb 10.

Association of physical activity in the past year and immediately after in vitro fertilization on pregnancy.

Author information

1
Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina. Electronic address: kelly_evenson@unc.edu.
2
Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina; Atlanta Center for Reproductive Medicine, Atlanta, Georgia.
3
Carolina Population Center, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina; Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
4
Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
5
Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina.
6
Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina.

Abstract

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.

KEYWORDS:

Accelerometry; conception; implantation; pregnancy; questionnaire; sedentary behavior

PMID:
24524834
PMCID:
PMC3982290
DOI:
10.1016/j.fertnstert.2013.12.041
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Elsevier Science Icon for PubMed Central
Loading ...
Support Center