The buoyancy of water can reduce sports injuries: the buoyancy of water can greatly reduce the impact on all joints of the body, so that all joints of the human body are not easily injured. In addition, obese people feel more relaxed when they exercise in water, which overcomes their ability to move on land.
The disadvantage of easy fatigue. Effect of water resistance accelerated training: Water resistance can increase the external load of the body, and the amount of exercise is much stronger than ground exercise at the same frequency.
Heat dissipation of water accelerates heat consumption: Because the water temperature is lower than air, people need to consume more heat to keep their body temperature. The heat consumed by a person exercising in the swimming pool for 20 minutes is equivalent to 1 hour or more of the same intensity of land exercise.