1, 1, Bobby must do warm-up exercises before jumping. Warm-up can do some squats, leg press and other actions, or move the head, turn around, expand the chest, lift sideways, stretch the arms and hips, so that the body is in a relaxed state and open all joints of the body. Squat and leg press are relatively simple movements, but pay attention to the shape of the body at a depth of 90 degrees, and the movements should be standard, otherwise it will have no effect. When you are in leg press, you can use the power of instruments, or bend down and touch the ground with your hands, so that you can stretch your legs. "

2.Bobby jump is a comprehensive training action that integrates squat, push-ups and jumping. Known as one of the most efficient general fitness programs, it is often listed as a necessary action to burn fat and lose weight.

This movement was invented by a physiologist named Bobby, originally to test the physical quality of church members.