The traditional view was that women should avoid exercise during pregnancy because of the risk of preterm birth. However, views have changed. Now, a new study that reviews and analyzes the evidence, confirms what many studies have found – exercise during pregnancy is safe and can benefit both mother and baby.
The study is published in the American Journal of Obstetrics & Gynecology.
Senior author Vincenzo Berghella, professor at Thomas Jefferson University in Philadelphia, PA, and director of its Division of Maternal-Fetal Medicine, says:
“The thinking was that exercise releases norepinephrine in the body, which is a chemical that can stimulate contractions of the uterus, and thus lead to preterm birth.”
He and his colleagues pooled and analyzed data from nine randomized controlled studies.
Overall, the analysis included 2,059 women: with about half assigned to an aerobic exercise group and half assigned to a control group.
The women in the exercise group did aerobic exercise for 35-90 minutes, three or four times a week for 10 weeks – or up until their delivery. The controls did no exercise.
No increased risk of preterm deliveryThe results showed there was no significant difference between the exercise and control groups in terms of incidence of preterm delivery (before 37 completed weeks of gestation).
However, there was a higher incidence of vaginal delivery (73.6 percent versus 67.5 percent), and a significantly lower incidence of cesarean delivery (17.9 percent versus 22 percent) in the exercise group than in the control group.
Also, the researchers found a lower incidence of gestational diabetes and lower incidence of high blood pressure in the exercise group compared with the control group.
Looking at the babies, the researchers found no differences in low birthweight and average birthweight between the exercise group and the control group.
- Written by Catharine Paddock PhD medicalnewstoday.com For more , Please visit us :http://Salamatezanan.ir/enAlso you can read our articles in Persian Language , Please visit us :http://Salamatezanan.ir
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