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Aerobic exercise in pregnancy.

P J Kulpa, B M White, R Visscher

    American Journal of Obstetrics and Gynecology
    |June 1, 1987
    PubMed
    Summary

    Gestational exercise in recreational athletes showed no increased risk to mothers or newborns. Pregnant individuals who exercised maintained or improved aerobic fitness, with exercisers demonstrating a significant training effect.

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    Area of Science:

    • Sports Medicine
    • Obstetrics
    • Exercise Physiology

    Background:

    • Investigating the impact of exercise during pregnancy is crucial for maternal and fetal well-being.
    • Recreational athletes represent a unique population for studying exercise effects due to their baseline fitness levels.

    Purpose of the Study:

    • To determine the effects of gestational exercise on fetal and maternal outcomes in recreational athletes.
    • To assess the training effect of aerobic exercise in pregnant individuals.

    Main Methods:

    • A 2.5-year prospective study involving 141 low-risk pregnant subjects.
    • Aerobic capacity was measured during the first trimester, third trimester, and postpartum using Bruce treadmill and Astrand bicycle ergometer protocols.
    • Subjects were randomized into control and exercise groups, with exercise frequency as the primary difference.

    Main Results:

    • Gestational exercise did not increase neonatal morbidity or obstetric complications.
    • All participants maintained or improved their aerobic fitness levels.
    • The exercise group exhibited a significant training effect, though pregnancy physiology may have masked some gains during the third trimester.

    Conclusions:

    • Aerobic exercise during pregnancy is safe for both mother and fetus in recreational athletes.
    • Regular exercise can lead to improved or maintained cardiorespiratory fitness throughout pregnancy.
    • Further research may be needed to fully understand exercise adaptations during pregnancy due to physiological changes.

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