When these women and those before them broke with previous recommendations to reduce their physical activity while pregnant, it enabled researchers to argue for the necessary science to back them up.
Most prior recommendations for pregnancy weren’t based on strong science, said Dr. Emily Kraus, who leads Stanford University’s FASTR (Female Athlete Science and Translational Research) program.
“Because of all the ethical challenges with doing actual studies on pregnant women, many of these past guidelines weren’t grounded in research studies.
But rather doctors’ best judgment,” Kraus added in an email. (CNN)
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