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On the temporal relationships between lung function and somatic growth.

D L Sherrill1, A Camilli, M D Lebowitz

  • 1Westend Research Laboratory, University of Arizona College of Medicine, Tucson 85724.

The American Review of Respiratory Disease
|September 1, 1989
PubMed
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Somatic growth velocity peaks before lung function growth peaks in healthy individuals. This suggests body growth timing influences lung development, with females showing earlier lung involvement in their growth spurt.

Area of Science:

  • Pulmonary Medicine
  • Human Growth and Development
  • Epidemiology

Background:

  • Understanding the relationship between somatic growth and lung function development is crucial for assessing respiratory health.
  • Longitudinal studies are essential for tracking developmental trajectories in pulmonary function and body growth.

Purpose of the Study:

  • To evaluate the temporal relationships between pulmonary function measures and somatic growth in healthy males and females.
  • To determine the timing of peak growth velocity for both body and lung function.

Main Methods:

  • Utilized data from the Tucson Epidemiological Study of Airway Obstructive Disease.
  • Employed a nonparametric polynomial smoothing spline model for longitudinal data analysis.
  • Analyzed pulmonary function from maximal expiratory flow volume (MEFV) curves and somatic growth data.

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Main Results:

  • Somatic growth velocity peaks consistently preceded peak lung function measurements in both sexes.
  • A statistically significant difference in timing was observed for FEV1 and FEF25-75 in males.
  • Trends indicated that maximal body growth precedes maximal lung functional growth, with females exhibiting earlier lung inclusion in growth spurts.

Conclusions:

  • Maximal body growth velocity timing precedes maximal lung function development.
  • The findings suggest that somatic development influences pulmonary function maturation.
  • Early growth spurts in females appear to involve lung development concurrently with body growth.