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selfexplanatory.2022
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HI
नमस्ते
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‫َل‬ َّ
‫الس‬
ِ َّ
‫ٱَّلل‬ ُ‫اة‬‫م‬ْ‫ح‬‫ا‬‫ر‬‫ا‬‫و‬
ُ‫ه‬ُ‫ت‬‫كا‬‫ا‬‫ر‬‫ا‬‫ب‬‫ا‬‫و‬
Saba Parvin Haque
M.Sc. Life Sciences
(Specialization in Neurobiology)
from “Sophia College”
(Autonomous), Mumbai.

AIM: TO ESTIMATE
VITAL CAPACITY OF
LUNGS USING BALLOONS

VITAL CAPACITY (VC)
❑Lung volumes are also known as
respiratory volumes.
❑It refers to the volume of gas in the lungs at
a given time during the respiratory cycle.
❑Lung capacities are derived from a
summation of different lung volumes.
❑The average total lung capacity of an adult
human male is about 6 litres of air.
❑Lung volumes measurement is an integral
part of pulmonary function test.
❑These volumes tend to vary, depending on
the depth of respiration, ethnicity, gender,
age, body composition and in certain
respiratory diseases. https://i.ytimg.com/vi/gPm8ZZtSS7I/maxresdefault.jpg

VITAL CAPACITY(VC)
❑Vital capacity (VC) is the maximum
amount of air that can be exhaled after a
full breath.
❑It is about 80 percent of total capacity, or
4.8 liters, because some air remains in your
lungs after you exhale.
❑The lung capacities of different animals
vary based on their activities. E.g., the lung
capacity of cheetahs is much higher than
humans. This is because they require a large
amount of oxygen for their muscles that
help them to run fast. The lung capacity of
elephants is also higher due to their large
body size.
https://images.app.goo.gl/cW3Av4oGov1BHYFS6
https://images.app.goo.gl/C9oJLeLCg3ckaPpx9

MATERIAL & PROCEDURE
❑ Procedure:
➢ Stretch your balloon.
➢ Take a deep breath and blow all at once into the balloon and
close it off.
➢ Shape the balloon into a sphere shape while holding the air
in.
➢ Measure the circumference of the balloon at the middle.
➢ Record the number in centimeters.
➢ Repeat two more times.
➢ Take 30 deep breaths (Diaphragmatic breathing/belly
breathing) and repeat the procedure three more times.
https://blogshewrote.org/wp-content/uploads/2016/04/lung-4-1.jpg
❑ Materials: Balloon, Ruler & Calculator.

CALCULATE LUNG CAPACITY
❑Determine the diameter of the sphere
from the circumference using the
equation circumference = 2πr.
❑Calculate the Volume of a Sphere
using the diameter to find the radius
and then the equation below https://images.app.goo.gl/jWkbvvouecmCfqhs7
https://images.app.goo.gl/2r1MmUk1AoF8xRRw7

https://youtu.be/gPm8ZZtSS7I?si=KERF0pRZ0rT3QFze

❑Go to this site: http://biol.co/vitcap1 and input information on
test subjects. It will calculate the vital capacity. Normal Vital
Capacity Calculator (thecalculator.co)
❑ Test it for every member in your household.
ACTIVITY

RESULTS
❑The vital capacity of lungs after deep breathe using
balloons is ml and from the website the ideal result
is ml.

❑Prevention is the best medicine, and working to keep your lungs
healthy is much more efficient than trying to repair them after something
goes wrong. To keep your lungs healthy, do the following:
❑Stop smoking, and avoid secondhand smoke or environmental irritants.
❑Eat foods rich in antioxidants.
❑Get vaccinations like the flu vaccine and the pneumonia vaccine. This
can help prevent lung infections and promote lung health.
❑Exercise more frequently, which can help your lungs function properly.
❑ Improve indoor air quality. Use tools like indoor air filters and reduce
pollutants like artificial fragrances, mold, and dust.
TIPS FOR KEEPING YOUR LUNGS HEALTHY

❑ Lung Volumes - Physiopedia (physio-pedia.com)
❑ Woodie, H. (2019, May 3). How to measure lung capacity. Blog, She Wrote. https://blogshewrote.org/science-
quest-measuring-lung-capacity/
❑ Gotter, A. (2024, March 15). Breathing exercises to increase lung capacity. Healthline.
https://www.healthline.com/health/how-to-increase-lung-capacity#normal-lung-capacity-values
REFERENCES

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