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Related Experiment Videos

Arm span-height relationships in patients referred for spirometry

J M Parker1, T A Dillard, Y Y Phillips

  • 1Department of Pulmonary and Critical Care Medicine, Walter Reed Army Medical Center, Washington, D.C., USA.

American Journal of Respiratory and Critical Care Medicine
|August 1, 1996
PubMed
Summary

Arm span can estimate standing height, especially for individuals unable to stand. Age significantly impacts this relationship in males but not females, influencing height predictions.

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Area of Science:

  • Pulmonary Function Testing
  • Anthropometry

Background:

  • Arm span is a potential surrogate for standing height in pulmonary function assessments.
  • Previous research shows conflicting results on the age-dependency of the arm span-to-height ratio.

Purpose of the Study:

  • To investigate the relationship between arm span, standing height, age, race, and sex.
  • To determine the predictive value of arm span for standing height in a diverse adult population.

Main Methods:

  • A multiple linear regression analysis was performed on data from 202 patients (aged 20-88 years).
  • Variables included standing height, arm span, race, sex, and age.
  • Subgroup analyses were conducted based on sex and race.

Main Results:

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  • Arm span, race, sex, and age were all significant predictors of standing height (r² = 0.8659, p < 0.0001).
  • Age was a significant factor in height prediction for males but not for females.
  • Fixed arm span-to-height ratios provided reasonable height estimations, with exceptions at extreme statures.

Conclusions:

  • Arm span is a valuable anthropometric measure for estimating standing height.
  • The predictive accuracy of arm span for height is influenced by age and sex.
  • Adjusted ratios may improve height estimation in clinical settings, particularly for patients with limited mobility.