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Related Experiment Videos

Peak expiratory flow rates in elderly Indians.

M B Dikshit1, B A Prasad, N V Jog

  • 1Department of Physiology, Armed Forces Medical College, Pune.

Indian Journal of Physiology and Pharmacology
|January 1, 1991
PubMed
Summary

Peak expiratory flow rates (PEFR) in elderly Indian men decline with age and height. Smokers surprisingly showed higher PEFR than non-smokers, contrary to expectations.

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Area of Science:

  • Pulmonary Medicine
  • Geriatric Health
  • Respiratory Physiology

Background:

  • Peak expiratory flow rate (PEFR) is a key indicator of lung function.
  • Understanding age-related changes in PEFR is crucial for geriatric respiratory health.
  • Previous studies suggest ethnic variations in PEFR, necessitating population-specific data.

Purpose of the Study:

  • To establish normative data for PEFR in elderly Indian men.
  • To investigate the correlation of PEFR with age, anthropometric factors, and smoking status.
  • To compare Indian PEFR values with those reported in other ethnic groups.

Main Methods:

  • Measurement of Peak Expiratory Flow Rate (PEFR) using Wright's peak flow meter.
  • Study population: 124 normal elderly Indian men aged 55-85 years.
  • Statistical analysis to assess correlations with age, height, FVC, FEV1, and smoking status.

Main Results:

  • PEFR was 431 ± 13 lpm for men <60 years and 373 ± 11 lpm for men >60 years.
  • PEFR showed a decline of 4.47 lpm per year of age increase.
  • Positive correlations were observed between PEFR, height, FVC, and FEV1.
  • Smokers exhibited significantly higher PEFR than non-smokers, an unexpected finding.

Conclusions:

  • Age and height are significant determinants of PEFR in elderly Indian men.
  • Indian PEFR values are comparable to other Indian studies but differ from European and Chinese populations.
  • The higher PEFR in smokers warrants further investigation to understand the underlying physiological mechanisms.

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