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Related Experiment Video

Updated: Jul 4, 2026

Swimming Exercise Protocol and Care Methods for Pregnant Rats
05:17

Swimming Exercise Protocol and Care Methods for Pregnant Rats

Published on: April 5, 2024

Does exercise training during pregnancy affect gestational age? A randomised controlled trial.

R Barakat1, J R Stirling, A Lucia

  • 1Instituto Nacional de Educación Física (INEF), Universidad Politécnica, Madrid, Spain.

British Journal of Sports Medicine
|June 17, 2008
PubMed
Summary
This summary is machine-generated.

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Regular exercise for previously sedentary pregnant women is safe and does not increase the risk of preterm delivery. Moderate, supervised exercise programs throughout pregnancy do not affect gestational age at birth.

Area of Science:

  • Obstetrics and Gynecology
  • Exercise Physiology
  • Maternal Health

Background:

  • Controversy exists regarding exercise during pregnancy and preterm delivery risk.
  • Investigating the link between maternal exercise and gestational age is crucial for prenatal care guidelines.

Purpose of the Study:

  • To determine the cause-effect relationship between regular exercise in the second and third trimesters and gestational age at delivery.
  • To assess the safety of moderate exercise for previously sedentary, healthy pregnant women.

Main Methods:

  • A supervised exercise program was implemented for 72 pregnant women (training group).
  • A control group (n=70) did not participate in the exercise program.
  • The training involved light resistance and toning exercises, three times weekly until week 39 of gestation.

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Main Results:

  • No significant differences in maternal characteristics that could affect gestational age were observed between groups.
  • Mean gestational age was similar between the exercise group (39 weeks, 3 days) and the control group (39 weeks, 4 days).
  • Statistical analysis showed no significant difference in gestational age (p = 0.745).

Conclusions:

  • Moderate, supervised exercise programs are safe for previously sedentary, healthy pregnant women.
  • Engaging in exercise until the end of gestation does not negatively impact gestational age.
  • Findings support the recommendation of exercise during pregnancy for maternal and fetal well-being.