D. Yadav, M. Kumar, J. Kumar
ABSTRACT
Introduction: Cigarette smoking is the leading known risk factor for the development of chronic obstructive pulmonary disease and also a major risk factor for cardiovascular disease. Obesity may have multiple effects on the pulmonary function that can be assessed by peak expiratory flow rate (PEFR) and vital capacity (VC). VC provides useful information about the strength of respiratory muscle and PEFR is a useful parameter to monitor airway obstruction. Both obstructions to the airflow and senile degenerative changes in the lungs together might play roles in decreased PEFR in smokers and obese.
Objectives: The objectives of the study were to correlate between smoking and obesity and VC and PEFR separately.
Materials and Methods: Data were collected from subjects of the age group 17–35 years of both smokers (n = 40) and nonsmokers (n = 40). Parameters measured were VC (using student’s spirometer) and PEFR (using Wright’s mini peak flow meter).
Result: There was a significant negative correlation between body mass index (BMI) and VC and BMI and PEFR. VC and PEFR were significantly higher in nonsmokers as compared to smokers. Conclusion: Smoking and obesity adversely affect pulmonary function tests. This study data will help in the management of different types of obstructive pulmonary diseases.
Key words: Obesity, smoking, VC and PEFR