Human Biology
Volume 55, Issue 2, 1983, Pages 517-527
Submaximal work performance of native and migrant preadolescent boys at high altitude (Article)
Haas J.D. ,
Greksa L.P. ,
Leatherman T.L. ,
Spielvogel H. ,
Paredez Fernández L. ,
Moreno-Black G. ,
Paz Zamora M.
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a
Div. Nutrit. Sci., Cornell Univ., Ithaca, NY 14853, United States
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b
Div. Nutrit. Sci., Cornell Univ., Ithaca, NY 14853, United States
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c
Div. Nutrit. Sci., Cornell Univ., Ithaca, NY 14853, United States
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d
[Affiliation not available]
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e
[Affiliation not available]
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f
[Affiliation not available]
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g
[Affiliation not available]
Abstract
Fifty-five preadolescent boys of European ancestry were given submaximal exercise tests in La Paz, Bolivia (mean altitud of 3600 m). Twenty-nine of the boys were born at high-altitude (HAB) and 26 were born at low-altitude (LAB). VO2 and relative work intensity (VO2/VO2(max)) were significantly lower in HAB boys than in LAB boys, suggesting that the HAB boys were better adapted to hypobaric hypoxia than the LAB boys. After controlling for relative work intensity, there were no significant differences between the groups in their physiological responses to submaximal exercise, suggesting that the greater VO2 of the LAB boys was not due to a less efficient oxygen transport system. Also, interindividual variability was considerably greater in LAB than HAB boys for many measures, including VO2. This may reflect considerable individual differences in the development of adaptive responses to hypobaric hypoxia among LAB boys.
Author Keywords
[No Keywords available]
Index Keywords
Link
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0020579855&partnerID=40&md5=1bc43cc7ec88d6a61bc62b3baf12aaa9
ISSN: 00187143
Cited by: 5
Original Language: English