Elite athletes may use an exercise training mask. These allow monitoring of inhaled and expired gases, and can be adjusted to simulate different altitudes by reducing the oxygen content of the inspired air (altitude training).
Sizes: small, medium, large
Measurement:
(1) Establish midline of face through the sagittal plane of the nose.
(2) Place a ruler along the closed lips in the neutral position with 0 at the vertical line.
(3) Record the distance to 1 inch beyond the corner of the mouth.
score in inches =
= 2 * (distance measured)
Score
Weight
Size
4 inches
100 to 149 pounds
small
4.5 inches
150 to 249 pounds
medium
5 inches
>= 250 pounds
large
To read more or access our algorithms and calculators, please log in or register.
