Frequent leg press, usually not bad for the body, if the posture is not correct may appear to strain the thigh and crotch ligaments, pelvic floor muscle group relaxation, Achilles tendon easy to be injured and so on. 1. Strain thigh and crotch ligaments: If the movement is not correct, it is easy to strain the thigh and crotch ligaments by forcibly pressing hard, especially for those who have not performed leg press before. 2. Pelvic floor muscle group relaxation: if the leg press movement is not correct, it is easy to cause destructive to the pelvis, resulting in pelvic structure loosening, whole body bone stress conduction imbalance, pelvic floor muscle relaxation and other phenomena. 3. Achilles tendon is easy to be injured: when you press your leg, you need to put one foot on the crossbar or other objects. If the Achilles tendon is locally squeezed during leg press, it is easy to cause Achilles tendon injury in the tense state. If there is obvious pain and discomfort in the above areas, you should go to the hospital in time for medical treatment. In addition, when doing leg press, you need to master the speed, strength, pay attention to the balance and so on.