Many people think that “fitness sports hurt the knees”, and even regard this as the reason for lazy less exercise, some osteoarthritis patients even think that since the joints are already in trouble, is “can not be moved”. These ideas are common misconceptions. Knee joints also need to exercise in order to become strong, and often do some small movements can maintain the knee joints. This action is against the wall squatting, it is good for the maintenance of the knee joint, as well as the muscles around the knee joint, rehabilitation ligament injury. You just need to squat half against the wall to keep this movement, insist, insist and insist. Practice for 10-20 minutes a day, and you can complete it in multiple sessions. After a month, you will feel that your knees are 10 years younger!