Swimming is a systemic aerobic exercise, which has a good exercise effect on cardiopulmonary function, muscle strength, flexibility and physical coordination. The fitness effect of swimming is mainly manifested in the following aspects:

1. Enhance cardiopulmonary function: When swimming, the human body needs to consume a lot of oxygen, which is helpful to improve cardiopulmonary function and enhance the health of cardiovascular system.

2. Exercise the whole body muscles: When swimming, the whole body muscles such as upper limbs, lower limbs, back and abdomen will be exercised, which will help to shape a strong body shape.

3. improve flexibility: swimming requires the joint efforts of all muscles, which helps to improve the flexibility and flexibility of the body.

4. Reduce stress: When swimming, the buoyancy of water can reduce the pressure on joints and help relieve fatigue during exercise. Besides, swimming can also help to relax and relieve stress.

5. Increase endurance: Swimming is an aerobic exercise. Long-term adherence to swimming can improve physical endurance and enhance anti-fatigue ability.

6. Promote fat burning: When swimming, the body needs to consume a lot of energy, which helps to reduce the accumulation of fat in the body and achieve the effect of losing weight and shaping.

In a word, swimming is an ideal fitness exercise for all ages. Long-term adherence to swimming can effectively improve physical fitness, prevent diseases and enhance physical fitness.