Open your feet shoulder-width apart, then jump in place and look forward at your upper body. At the same time, your abdomen is curled up. The standard action is that the knees can touch the chin when the abdomen is closed, and then the body will open and land.
This action mainly exercises the strength and physical coordination of the practitioner, which helps to improve the jumping ability and increase the height.
Extended data
Fitness ball push-ups
Open your hands on the fitness ball and put your hands under your shoulders. Pay attention to make the stripes on the ball opposite to the direction of the hand, which can increase the friction. Reduce the risk of hand slippage. For beginners, elbows can be placed on the ball to reduce the difficulty. Don't overdo your elbows and keep your body in a straight line from head to toe. Tighten your abdomen and don't collapse.
Kneeling ball balance
Tighten your abdomen, hold the ball with both hands, control your body stability, kneel on the ball, tighten your thighs at the same time, and cross your hands on your chest to keep balance.
Reverse rowing of fitness ball
Put your feet on the fitness ball, and your legs are as wide as your hips. Lie on your back under the barbell bar and hold the barbell slightly wider than your shoulders. Tighten the abdomen, pull the body up to the elbow joint to form a 90-degree angle, keep the whole body in a straight line all the time, compress backwards under the shoulder strap, and don't touch the barbell bar when lifting. The controlled fall of the body is restored.