1: Pull your toes with elastic rope, and then hook your feet hard.

Step 2 stand up straight and stand on tiptoe

The number of times and the amount of exercise depend on your own situation.

Knee strength is a lot, you should choose it according to your actual situation, such as age and the specific situation of knee joint.

1: leapfrog, strong, but not suitable for people with knee injuries.

2. Quiet squatting, boring, it is difficult for young people to persist.

3. Squat up, it is not easy to insist.

4. borrow equipment to go to the gym to practice. . .

The problem of high efficiency and low efficiency, I think, is the problem of strength and self-control. If you do more, the effect will be obvious and rapid, and vice versa. . .

Hope useful to you