Lose some weight :)
Yes they make you lighter which puts less gravitational pull on yourself allowing you to jump higher
trampoline
up up
Pizza
The best way is to jump every day. If you jump every day, the height you jump will be the standard for your body. You will then need to push yourself to jump higher, which will then become the standard, and so on.
yes it does
The best way is to jump every day. If you jump every day, the height you jump will be the standard for your body. You will then need to push yourself to jump higher, which will then become the standard, and so on. Putting you hands behind your head, jumping, and pulling you knees to your chest is a good way.
The best way is to jump every day. If you jump every day, the height you jump will be the standard for your body. You will then need to push yourself to jump higher, which will then become the standard, and so on.
No.
They have small rocket engines in them.
no it's your jumping abilities
NO it is a bad program.