A New Way of Flight Training⦠- American Bonanza Society
A New Way of Flight Training⦠- American Bonanza Society
A New Way of Flight Training⦠- American Bonanza Society
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is fragmented and non-refreshing.<br />
The tongue is only one structure<br />
that can block the airway. Others include<br />
a small throat, large tonsils, and<br />
large uvula.<br />
Disturbed, non-restful sleep can<br />
cause excessive daytime sleepiness,<br />
diminished memory and concentration,<br />
and serious impairment <strong>of</strong><br />
attention. I am sure many <strong>of</strong> you have<br />
dozed <strong>of</strong>f while trying to read, only<br />
to find that you just read the same<br />
sentence three times without it sinking<br />
in. Think about trying to be attentive<br />
to multiple sources <strong>of</strong> information<br />
in the cockpit including attitude, airspeed,<br />
instruments, traffic, and countless<br />
other factors. We pilots rely heavily<br />
on multitasking and divided<br />
attention. Have any <strong>of</strong> you ever dozed<br />
<strong>of</strong>f at cruise on a long cross-country<br />
Not only does sleep apnea impair<br />
daytime alertness and performance,<br />
it can result in serious<br />
health effects. These include hypertension<br />
that will not respond to medication,<br />
increased stroke risk, atrial<br />
fibrillation, heart attack, and disturbed<br />
heart rhythm at night. There is also a<br />
relationship between sleep apnea and<br />
heart enlargement and diabetes.<br />
The most important predictors <strong>of</strong><br />
obstructive sleep apnea are age and<br />
body mass index. Onset is common in<br />
middle adulthood, and is more common<br />
with advancing age. Obstructive<br />
sleep apnea is present in 4% - 8% <strong>of</strong><br />
the population, but rises to 30% <strong>of</strong><br />
persons with a body mass index in the<br />
35-40 range. You can calculate your<br />
body mass index as follows:<br />
Weight (pounds) 2 703<br />
Height (inches) 2<br />
There are many sites online that<br />
will provide your body mass index.<br />
The World Health Organization defines<br />
“overweight” as a body mass<br />
index greater than 25, and obesity as<br />
a body mass index greater than 30.<br />
However, 30% <strong>of</strong> patients with sleep<br />
apnea have a body mass index <strong>of</strong><br />
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Volume 12 • Number 1 AMERICAN BONANZA SOCIETY 39
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