Exercise on land, due to the role of gravity, joints and joints pull tight friction, easy to cause sports injuries. In the water, buoyancy can reach 85% to 90% of body weight, greatly reducing the gravity, so joints, bones, muscles under pressure relative to reduce, not easy to hurt, exercise pain also will be weakened.
Buoyancy of water can also improve the flexibility, so that the movement of the body joints more flexible. Do not exercise on land, including the muscles can not be practiced in the water, you can easily win. By imitating the swimming posture of the fish, stretching each part of the body evenly, there is an excellent fitness effect. Fitness plastic, diving is definitely the best choice.