Volume 109, Issue 3 pp. 295-301
Research Article
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Developmental components of resting ventilation among high- and low-altitude Andean children and adults

A. Roberto Frisancho

Corresponding Author

A. Roberto Frisancho

University of Michigan, Ann Arbor, Michigan 48109

Center for Human Growth and Development, 300 N. Ingalls Bldg., University of Michigan, Ann Arbor, MI 48109-0406.Search for more papers by this author
Patricia C. Juliao

Patricia C. Juliao

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Veronica Barcelona

Veronica Barcelona

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Carmela E. Kudyba

Carmela E. Kudyba

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Glenda Amayo

Glenda Amayo

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Grecia Davenport

Grecia Davenport

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Alicia Knowles

Alicia Knowles

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Dani Sanchez

Dani Sanchez

Undergraduate Participants in the NIH-Fogarty Minority International Research Training Program of the Center for Human Growth and Development of the University of Michigan, Ann Arbor, Michigan 48109

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Mercedes Villena

Mercedes Villena

Instituto Boliviano de Biología de Altura, La Paz, Bolivia

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Enrique Vargas

Enrique Vargas

Instituto Boliviano de Biología de Altura, La Paz, Bolivia

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Rudy Soria

Rudy Soria

Instituto Boliviano de Biología de Altura, La Paz, Bolivia

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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. © 1999 Wiley-Liss, Inc.

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