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Study: Exercise in First Trimester Affects Infant Size

Women who exercise above the recommended levels during the first trimester of pregnancy—that is, about 33 minutes of brisk walking or more every day—are at increased risk of delivering small-for-gestational-age infants and decreased risk of delivering large-for-gestational-age infants, according to a new study published in the American Journal of Epidemiology and authored by Samantha Ehrlich, a reproductive and perinatal epidemiologist at the University of Tennessee, Knoxville.

Learn more at news.utk.edu.