The lung capacity is 1400 ml at the age of 10, and it can be increased to 2000-2500 ml at the age of 14- 15 in adolescence.
Boys can approach or reach adult's vital capacity at the age of 17- 18, and girls at the age of 16- 17.
The standard vital capacity of middle school students for boys is as follows:
The standard vital capacity of middle school students for girls is as follows:
Vital capacity varies with gender and age, and males are significantly higher than females.
Before the age of 20, the vital capacity gradually increased with age, but it did not increase obviously after the age of 20. The vital capacity of adult males is about 3500 ~ 4000 ml, and that of adult females is about 2500 ~ 3000 ml.
The vital capacity mainly depends on the expansion and contraction of the chest wall. The lung capacity decreases with age, by 9% ~ 27% every 10 year, but the lung capacity of people who insist on physical exercise for a long time can still remain normal.
Extended data:
Methods of increasing vital capacity:
1, chest expansion exercise: do chest expansion and chest expansion exercise twice a day, a total of 50 times, preferably after getting up every day and before going to bed, which can effectively prevent the decline of vital capacity.
2. Show your voice: Singing is also a good way to increase your vital capacity. The beautiful melody of the song can make people intoxicated and forget their troubles; Pay attention to your luck when you speak, and take a deep breath evenly, which is good for your body and mind.
3, often eat apples: researchers at the University of Nottingham found that apples and tomatoes are most helpful to help the human body breathe more freely. Eating at least 5 apples or 3 tomatoes a week can significantly improve human lung function. At the same time, eating bananas often will not cause difficulty breathing.
4. Stand up: Long-term adherence to the correct posture of holding your head high and your waist straight can increase your vital capacity by 5%~20%, and the amount of oxygen obtained by various tissues of your body will also increase. Sticking to the chest can also enhance the memory of the brain.
5. Walking in the water: If you can't swim, it is recommended to walk in the water at a certain speed, and the water depth is preferably above the waist. Walk fast 15 minutes, rest for 5 minutes, walk 10 minutes, rest for 5 minutes, walk 15 minutes. Practice twice a week, and the effect is obvious.
Baidu Encyclopedia-National Physical Health Standard for Students
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