Apart from age, people's flexibility is different, men and women are different, and everyone is different.

It can be completely disassembled in about three months, and at least one fork can be completely opened. If you are naturally flexible, you can open it in two months.

If you want to divide it, you have to get leg press. Warm up before leg press, such as running for about 30 minutes (10 minutes or 20 minutes, as long as your legs are hot and you can still move), or skipping rope. Then don't worry. Kick back and forth, 30 or 40 times each, and swing your legs left and right, also 30 or 40 times. Then start pressing. Put leg press on a pole or waist-high object. The support legs are at 90 degrees to leg press. Keep your toes in the same direction as leg press, and relax completely through leg press. Tiptoe flexion, that is, toes bend in the direction of the body, and then the upper body vibrates forward. At first, the amplitude and intensity should be small, so you can press statically, that is, lean forward and keep a certain pressure and posture unchanged. Tilt your upper body forward and upward as far as possible, and press your abdomen against your thighs. Press the other leg for three minutes every minute. Then side leg press. Every time after leg press, you should do relaxation exercises, such as kicking, swinging your legs, shaking your legs, etc., to restore muscle relaxation. After pressing for more than half a month, leg press can use a hot water bag to press the buttocks and thighs to relieve the pain. After a period of time, with the deepening of leg press, pain and fatigue are essential, just for a few days, as long as you get over it. Leg press guarantees half an hour every day. It will be done in three months. There are many introductions about some leg press, and you can search online to get a detailed introduction. I briefly introduced some key points and methods. Remember the above, stick to it for a while, and you will not be far from victory.