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Lung function tests in Rajasthani subjects.

P Gupta, S Gupta, R L Ajmera

    Indian Journal of Physiology and Pharmacology
    |January 1, 1979
    PubMed
    Summary

    Lung function tests reveal that males and younger adults (17-27 years) exhibit higher ventilatory values compared to females and older adults (28-40 years). These findings highlight age and sex as key determinants of respiratory performance.

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    Area of Science:

    • Physiology
    • Pulmonary Medicine
    • Anthropometry

    Background:

    • Pulmonary function varies significantly across populations.
    • Understanding demographic influences on lung capacity is crucial for clinical assessments.
    • Limited data exists on ventilatory function in the Rajasthani population.

    Purpose of the Study:

    • To determine various lung volumes and ventilatory test values in Rajasthani adults.
    • To investigate the influence of sex and age on these respiratory parameters.
    • To calculate derived indices like Air Velocity Index (AVI).

    Main Methods:

    • Spirometry was used to measure lung volumes and ventilatory tests.
    • Tests included Tidal Volume (TV), Expiratory Reserve Volume (ERV), Inspiratory Capacity (IC), Minute Ventilation (MV), Maximal Voluntary Ventilation (MVV), Vital Capacity (VC), Forced Expiratory Volume in 1 second (FEV1), Maximal Mid-Expiratory Flow Rate (MMFER), and Peak Expiratory Flow Rate (PEFR).
    • Derived indices such as Breathing Rate (BR), Diaphragmatic Index (DI), and Air Velocity Index (AVI) were calculated.

    Main Results:

    • A total of 241 subjects aged 17-40 years were studied.
    • Most measured lung volumes and ventilatory values were significantly higher in males than in females.
    • Higher values were observed in younger age groups (17-27 years) compared to older age groups (28-40 years) within the same sex.

    Conclusions:

    • Sex and age are significant factors influencing lung volumes and ventilatory function in Rajasthani adults.
    • The study provides normative data for respiratory parameters in this specific demographic.
    • Findings suggest potential implications for respiratory health monitoring and disease diagnosis.

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