The key to bounce is the achilles tendon and calf. In this case, you need to lose weight as a whole and can't gain weight at present. There are three stages. In the first stage, we must play more basketball, jump vertically, take off in place and jump rope. I don't know how old you are. On the second day of junior high school 172, I could barely surpass half a palm, but I could barely buckle a broken hoop. It's been more than ten years now, and my weight.

The second stage requires contact with some ancient martial arts techniques, so I won't say it here. First practice the basic skills of the first stage, and the height should be at least 3.05 meters.