Aerobic exercise has three conditions:

1, the energy required for exercise is mainly provided by oxidized substances such as fat or sugar in the body.

2. Most muscle groups (2/3) participate in sports. ?

3. Exercise intensity is between middle and low, and the duration is 15-40 minutes or longer.

Long-term adherence to aerobic exercise can increase the amount of hemoglobin in the body, improve the body's resistance, resist aging, enhance the efficiency of cerebral cortex and cardiopulmonary function, increase fat consumption, prevent arteriosclerosis, and reduce the incidence of cardiovascular and cerebrovascular diseases.

Extended data:

Attention requirements for playing badminton:

1. Reduce the tension (tightness) of badminton racket string: In a certain high-pound range, the looser string can provide greater winding effect, and it can play a faster and more powerful ball with less vibration.

2. Choose a racket shape with a large sweet area: the so-called sweet area is the best hitting area of the racket face. When the hitting point is in the sweet zone, it can give you enough hitting power, control the ball, and make you feel very comfortable. The sweet area of the racket is larger, and it is more difficult to hit the non-sweet area when hitting the ball, so there are fewer chances of vibration and less chances of injury.

3. Check the size of the handle of the racket: If the grip of the racket is too small, when the ball doesn't hit the sweet spot, the torque of the racket will be greater and the damage to the arm will be greater. If the grip is too big, the palm of your hand can't hold the racket and it is easy to get tired.

Baidu Encyclopedia-Badminton (Sports)