It's pretty common these days to see moms-to-be exercising at the gym. As numerous studies have shown, staying on the move helps a woman's body in two ways: keeping their heart strong and their muscles in shape, and relieving the basic discomforts of pregnancy.

As great as that all is for the pregnant mom, additional research shows that the baby also benefits. Researchers from the Kansas City University of Medicine and Bioscience discovered that babies carried by moms who exercised three times a week for 30 minutes had lower heart rates in utero than babies carried by more sedentary mothers. The researchers posit that this lower heart rate in utero may reduce a baby's risk of heart disease after birth and later in life.

Pregnancy experts assert that maintaining a regular schedule of moderate activity is better than engaging in infrequent spurts of intense exercise. For more health and safety workout tips for moms-to-be, click here.