Exercise is part of a healthy lifestyle and is recommended for healthy pregnant women who have uncomplicated pregnancies, with a few exceptions. You should always discuss your exercise program with your doctor. Recommendations from the American College of Obstetrics and Gynecology state that pregnant women who have an uncomplicated pregnancy should participate in at least 30 minutes of moderate exercise on most, if not all, days of the week. However, there are some sports with an increased risk of trauma to the abdomen that should be avoided. These include ice hockey, kickboxing, soccer, and horseback riding. Scuba diving should also be avoided in pregnancy since it poses a risk of decompression sickness ("the bends") to the fetus.