Browsing by Autor "Alicia Knowles"

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    Developmental components of resting ventilation among high- and low-altitude Andean children and adults
    (Wiley, 1999) A. Roberto Frisancho; Patricia Juliao; Veronica Barcelona; Carmela E. Kudyba; Glenda Amayo; Grecia Davenport; Alicia Knowles; Dani Sanchez; Mercedes Villena; Enrique Vargas
    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.
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    Developmental components of resting ventilation among high‐ and low‐altitude Andean children and adults
    (Wiley, 1999) A. Roberto Frisancho; Patricia Juliao; Veronica Barcelona; Carmela E. Kudyba; Glenda Amayo; Grecia Davenport; Alicia Knowles; Dani Sanchez; Mercedes Villena; Enrique Vargas
    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.