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The Effect of Exercise During Pregnancy on Maternal Outcomes: Practical Implications for Practice

HealthPartners Research Foundation, Minneapolis, Minnesota, blewis{at}umn.edu

Melissa Avery, CNM, PhD, FACNM

University of Minnesota, Minneapolis, Minnesota

Ernestine Jennings, PhD

Brown Medical School & The Miriam Hospital, Providence, Rhode Island

Nancy Sherwood, PhD

HealthPartners Research Foundation, Minneapolis, Minnesota

Brian Martinson, PhD

HealthPartners Research Foundation, Minneapolis, Minnesota

A. Lauren Crain, PhD

HealthPartners Research Foundation, Minneapolis, Minnesota

The American College of Obstetricians and Gynecologists recommends that women with low-risk pregnancies participate in moderate-intensity exercise during their pregnancy. Currently, only 15.1% of pregnant women exercise at the recommended levels, which is significantly lower than the general population's 45%. One potential reason is that exercise during pregnancy is perceived as risky. In this article, the authors provide a critical review of the literature examining the effect of exercise on preeclampsia, gestational diabetes, weight gain, labor and birth, and other issues associated with pregnancy. Overall, the evidence indicates that exercise during pregnancy is safe and perhaps even reduces the risk of preeclampsia and gestational diabetes. The evidence for weight gain and labor and birth (rates of cesarean sections, duration of labor) is mixed. Unfortunately, much of the research examining exercise during pregnancy is observational, and the few randomized controlled trials that do exist are small and inadequately powered. Taken together, given the potential benefits of exercise during pregnancy and the lack of evidence for harmful effects on the mother and newborn, practitioners should encourage their healthy pregnant patients to exercise. Practical guidelines for recommending exercise to pregnant women are presented.

Key Words: pregnancy • exercise • physical activity • practical implications

This version was published on September 1, 2008

American Journal of Lifestyle Medicine, Vol. 2, No. 5, 441-455 (2008)
DOI: 10.1177/1559827608320134


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