Developmental components of resting ventilation among high - and low-altitude andean children and adults
Fecha
1999Autor
Frisancho, A Roberto
Juliao, Patricia C
Barcelona, Verónica
Kudyba, Carmela E
Amayo, Glenda
Davenport, Grecia
Knowles, Alicia
Sánchez, Dani
Villena, Mercedes
Vargas, Enrique
Soria, Rudy
Metadatos
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ABSTRACT.
This paper evaluates the age-associated changes of resting
ventilation of 115 high- and low-altitude Aymara subjects, of whom 61 were
from the rural Aymara village of Ventilla situated at an average altitude of
4,200 m and 54 from the rural village of Caranavi situated at an average
altitude of 900 m. Comparison of the age patterns of resting ventilation
suggests the following conclusions: 1) the resting ventilation (ml/kg/min) of
high-altitude natives is markedly higher than that of low-altitude natives; 2)
the age decline of ventilation is similar in both lowlanders and highlanders,
but the starting point and therefore the age decline are much higher at high
altitude; 3) the resting ventilation that characterizes high-altitude Andean
natives is developmentally expressed in the same manner as it is at low
altitude; and 4) the resting ventilation (ml/kg/min) of Aymara high-altitude
natives is between 40–80% lower than that of Tibetans. Am J Phys Anthropol
109:295–301, 1999.