Male students: excellent value is 3 100ml, good value is 2600-3000ml, and passing value is 2200-2400ml.
Female students: excellent value is 2500-2700ml, good value is 2 100-2500ml, and passing value is 1800-2 100ml.
Vital capacity refers to the amount of gas that can be exhaled from the lungs after trying to inhale, which reflects the strength of respiratory muscles and the development of the chest. Therefore, it is very necessary for primary and secondary school students in the developmental stage to increase their vital capacity and weight through exercise. Generally speaking, the most direct way to increase vital capacity is to insist on deep breathing exercise and strengthen physical exercise to achieve the purpose of increasing vital capacity.
Methods of keeping vital capacity:
1. Maintain good eating habits: A reasonable diet is very important for maintaining vital capacity. You can choose foods with low fat, high fiber and high protein, such as fruits, vegetables, whole grains and lean meat. These foods help to keep healthy lungs and respiratory system.
2. Aerobic exercise: Aerobic exercise can improve cardiopulmonary function and lung endurance. Such as swimming, running, jogging and aerobic exercise. These exercises help to increase vital capacity and improve lung health.
3. Deep breathing training: Deep breathing training helps to increase vital capacity and vital capacity. You can practice deep breathing for 5- 10 minutes every day, such as inhaling slowly, exhaling slowly, and repeating.
4. Take a deep breath: straighten your arms, palms up, and guide your arms to slowly extend outward. At this time, take a deep breath, feel enough oxygen in your lungs, and then stop. Then turn your palm to the front, bend your body as much as possible, and then exhale slowly to expel the turbid air from your lungs until you can't exhale.
5. Maintain good living habits: Good living habits are also very important for maintaining vital capacity. For example, quit smoking, limit drinking, keep enough sleep and avoid long-term stress.