5 votes
Accepted

What is "recognized clinically"? Is there any special meaning in the word "clinically" here?

"Clinically" in this context means "by doctors in the clinic" in their normal practice. It excludes research contexts, and implies "real-world" circumstances. There is no ...
Bryan Krause's user avatar
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5 votes
Accepted

Simulate hypoxic training by breath holding/regulation

The approach you describe most likely will not work, and could be detrimental to your training. The main benefit of training at altitude is that the body will adapt to the lower concentration of ...
JohnP's user avatar
  • 6,646
5 votes
Accepted

Does carbon monoxide poisoning make you tired before it kills you?

Does carbon monoxide poisoning make you tired before it kills you? The symptoms of carbon monoxide poisoning can vary per person it affects, and it can also depend on the the levels of exposure to ...
Facebook's user avatar
  • 449
3 votes

Is there a nonchronic disease with similar effects to lungs like those of emphysema?

Yes, damage to the alveolar walls or the reduction in surface area for gaseous exchange can be reversible. Additionally, acute (non-chronic) conditions can cause these circumstances. For example, in ...
Jrapa86's user avatar
  • 301
2 votes

How to reduce apnea/hypoapnea events?

As a patient, Mayo Clinic physicians have indicated to me, as a patient, that weight loss can improve your position (reduce / eliminate apnea+hypoxia events) and reduce the need and possibly eliminate ...
gatorback's user avatar
  • 817
1 vote
Accepted

if diameter of alveoli is reduced to half, resistance becomes?

The resistance is defined as pressure difference per flow (basically just an application of Ohm's law). With Hagen-Poiseulle: So if the alveoli diameter is reduced to half (resulting in a halved ...
Narusan's user avatar
  • 6,772
1 vote
Accepted

How is nitrogen not exchanged in respiration?

There is no specific mechanism to carry nitrogen in blood, it is carried in a dissolved form unlike oxygen which uses the protein haemoglobin which is contained in red cells. Animals can not utilize ...
Graham Chiu's user avatar
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1 vote

Simulate hypoxic training by breath holding/regulation

Since there is a good answer already I'll just add my two cents from my understanding of physiology: Hypoventilation has two effects during exercise: Less available oxygen in your lungs and a ...
Michael Paul's user avatar
1 vote

Why is predicted FVC calculated on height only (and not weight)?

Predicted Normal Values Many studies have published lung function reference values for a variety of race/ ethnic groups, countries, and age ranges. Populations of interest are sampled and spriometric ...
Graham Chiu's user avatar
  • 13.3k
1 vote

Strengthening / recovering lungs? What is the science behind this?

One of the largest differences between an exerciser and a nonexerciser concerns the heart's ability to pump blood and consequently deliver oxygen to working muscles. Cardiac output is a major limiting ...
Graham Chiu's user avatar
  • 13.3k

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