There is no such thing as the most effective exercise for rapid pelvic entry, but pregnant women can help the fetus enter the pelvis by taking a walk, sitting on a yoga ball, etc., but be careful not to exercise too strenuously or excessively. 1. Walking: regular walking can make the ligaments of the pelvis become gradually loose, which can help the fetus gradually enter the pelvis, and also help the smooth labor. 2. Sitting on a yoga ball: Pregnant women can sit on a yoga ball, relying on the elasticity of the yoga ball to move up and down, which can relax the pelvic muscles of pregnant women and help the pelvis expand, allowing the fetus to enter the pelvis. Regardless of the method, it is necessary to pay attention to the appropriate, and pay attention to safety, avoid excessive strenuous exercise.