Submersible volleyball stand up

Submersible volleyball stand up

This is an improved stand-up. In addition to training strong muscles, it can also strengthen the tenacity of the neck, back, waist, hips, and legs. Open the feet as much as possible, and open the hands more open. The hips are raised, and the upper body is pressed down hard, but they cannot touch the ground. After stretching out your hands and holding them for 20 seconds, tilt your head back, and at the same time, bend your arms and raise your legs. After holding them for a while, retract your body and stand up, and then raise your hips. If your hips are raised, of course, you must also support them. Finally, it is restored to the preparatory position and repeated 8-10 times. Many people envy the muscles of muscular men, but ignore the hard work they put in. Large muscles are easy to train, while small muscles are the most difficult to train. There are 639 muscles on a person's body, composed of 6 billion muscle fibers. Each muscle fiber can produce about 0.981-1.962 millimeters of force when it contracts. If 639 muscles in the whole body are combined and contracted at the same time, it can produce about 25 tons of force. The total muscles of the human body are about 639. They are composed of about 6 billion muscle fibers, the longest muscle fibers reaching 60 cm and the shortest one is only about 1 mm. Large muscles weigh 2,000 grams, and small muscles only a few grams. The muscles of ordinary people account for 35-45% of the body weight. The total length of capillaries in the muscles can reach 100,000 kilometers, and can circle the earth two and a half circles. If you train all the muscles in your body, you are not a muscular man, you are a superman.