However, research indicates that developing fetuses tolerate exercise quite well, even though blood may be temporarily shunted away from the uterus. Additionally, studies indicate that women who are accustomed to rigorous workouts can tolerate these workouts without risking fetal distress. The American College of Gynecologist recommend that a pregnant woman keep her heart rate below 140 beats per minute during exercise. If you are not currently active, discuss your exercise plans with your physician. If you have a rigorous routine be sure to talk with your physician about the safety of your program.
Moderate exercise can help a woman feel better during pregnancy.