Tidal volume
Normal tidal volume, average tidal volume, tidal volume in adults
Tidal volume (sometimes known as "Vt") is measured
as the air volume breathed in during a single inhalation or exhalation from the
lungs. In other words, tidal volume is a difference between volumes after a
normal inhalation and a normal exhalation.
Normal tidal volume in adults at rest is about 500-600 ml or
17-20 oz of air. Most people breathe deeper and faster than these medical
norms. As a result, they have reduced body oxygen levels.
The normal tidal volume numbers are much smaller in newborn,
toddlers, infants, and children, down to about 100-150 ml due to smaller lungs.
Medical research suggests there is some correlation between
tidal volume and health. It is common that, with development of chronic
diseases, such as heart disease, cancer, asthma, COPD, diabetes, HIV-AIDS, and
many others, tidal volume becomes larger. The same is true about breathing
frequency. Sick people breathe faster and with greatly increased minute volumes
at rest.
You can find more facts related to minute ventilation,
respiratory rates, and get an idea about tidal volume in healthy people and
people with cancer, heart disease, asthma, COPD, lung disease, diabetes, and
many other conditions on pages of NormalBreathing.com.
Another webpage with this URL: tidal volume - http://www.e-breathing.com/respiration/tidal-volume/ provides some extra
details and a chart related to medical norms and values for tidal volume in
people with symptoms and health problems.
Here is a medical source of info: http://en.wikipedia.org/wiki/Tidal_volume
Normal values for tidal volume:
- during exercise: about 2 L
- pranayama: 3-4 L (close to maximum inhalation and
exhalation in the lungs)
- firebreath (hatha yoga exercise): 150-200 mL if this yoga
exercise is done correctly.
Our YouTube Channel: http://www.youtube.com/user/artour2006/
.
The URL of this video is: http://youtu.be/TrGQAuBAuJs or tidal volume - http://www.youtube.com/watch?v=TrGQAuBAuJs/ .
The video features Dr. Artour Rakhimov, health educator,
writer, breathing teacher and trainer, and the author of the website
NormalBreathing.com.
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