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Thoracic adaptation to high altitude.

R Malhotra

    Anthropologischer Anzeiger; Bericht Uber Die Biologisch-Anthropologische Literatur
    |December 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Boys at higher altitudes show greater vital lung capacity and chest length, with adaptations becoming more apparent after adolescence. This indicates improved physiological responses to high-altitude environments.

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    Area of Science:

    • Human physiology
    • Altitude adaptation
    • Anthropometry

    Background:

    • Human populations exhibit physiological adaptations to varying environmental conditions.
    • High-altitude environments pose unique physiological challenges.
    • Understanding growth and adaptation in adolescents is crucial for public health.

    Purpose of the Study:

    • To investigate thoracic growth and adaptation in relation to altitude.
    • To compare physiological parameters between two distinct altitude groups.
    • To analyze age-related differences in high-altitude adaptation.

    Main Methods:

    • Cross-sectional study design.
    • Inclusion of adolescent boys (5-18 years) of Rajput origin.
    • Data collection at two altitudes: 800m (Rampur Bushahr) and 3,000m (Kinnaur) in Himachal Pradesh.

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    Main Results:

    • Higher vital lung capacity observed at higher altitudes.
    • Significant increases in chest length noted in the high-altitude population.
    • Differences in vital capacity and chest dimensions were more pronounced post-adolescence.

    Conclusions:

    • Adolescent boys demonstrate significant thoracic adaptations to higher altitudes.
    • Increased vital capacity and chest length are key physiological responses to high-altitude living.
    • These adaptations suggest enhanced respiratory function and longer breath-hold times at higher elevations.