For substantial health benefits, pregnant women should aim for how long of moderate-intensity aerobic PA weekly?

Pregnant women are advised to engage in moderate-intensity aerobic physical activity for about 150 minutes weekly to achieve substantial health benefits. This recommendation aligns with guidelines from major health organizations, such as the American College of Obstetricians and Gynecologists (ACOG) and the Centers for Disease Control and Prevention (CDC), which emphasize the importance of regular physical activity during pregnancy for both maternal and fetal health.

Moderate-intensity activities can include walking, swimming, or stationary cycling, all of which can enhance cardiovascular fitness, maintain a healthy weight, and improve overall well-being during pregnancy. Engaging in 150 minutes of such activity spread throughout the week can help reduce the risk of gestational diabetes, preeclampsia, and excessive weight gain, while also potentially improving mental health and preparing the body for labor and delivery.

The other options exceed the recommended duration for most pregnant women. While some women may safely engage in higher levels of activity if they were already active before pregnancy, the general guideline for moderate-intensity aerobic activity during pregnancy is set at 150 minutes to ensure safety and support for both mother and child.