Swimming to lose weight does not hurt the knee joint, but it will have a good effect if it needs long-term persistence. The swimming effect is as follows:

1. Swimming consumes a lot of energy.

This is because the resistance of water when swimming is much greater than that of air when moving on land, so it is very difficult to walk in the water, and then swimming will definitely consume more calories. At the same time, the thermal conductivity of water is 24 times higher than that of air, and the water temperature is generally lower than that of air, which is also beneficial to heat dissipation and consumption. So swimming consumes much more energy than running and other land projects, so the effect of losing weight is more obvious.

2. It can avoid sports injuries of lower limbs and waist.

When exercising on land, obese people's bodies (especially lower limbs and waist) will bear great gravity load, which will reduce their exercise ability and make them easy to get tired, greatly reducing their interest in losing weight and damaging the joints and bones of lower limbs. When swimming in water, a considerable part of obese people's weight is borne by the buoyancy of water, which makes their lower limbs and waist much easier and greatly reduces the risk of joint and bone injury.

3. Enjoy the natural massage service.

When swimming, the buoyancy, resistance and pressure of water is an excellent massage for human body, and it can also beautify the skin.

4. Suitable for both fat and thin

For thin people, swimming actually makes people fat. This is because swimming exercises muscles and obese people consume excess fat. The fitness effect of swimming is unique.

5. The effect is not obvious, but stick to it.

During exercise, energy consumption is completed in three stages, namely, sugar metabolism, fat metabolism and protein metabolism. Losing weight is achieved through the principles of reducing fat and swimming.