A Psychological Study to Compare the Difference in Expiratory Parameters of Breathing among Normal and Different Respiratory Conditions

Abstract

Background: Pulmonary function serves as one of the important measurement tool while studying respiratory disorders and forced spirometry being one of the most effective techniques for assessment of pulmonary disorders. This test provides information on etCO2, peak expiratory flow rate, and forced expiratory volume in the first second (FEV1).

Method: Patients according to selection criteria were divided into 3 groups – Normal, Obstructive and Restrictive with 30 subjects in each group.  Each subject was asked to perform spirometer for FEV₁, mini wrights peak flow meter for PEFR and capnogram for etCO₂.

Results: ANOVA test was done for intergroup comparison between 3 groups and null hypothesis was rejected.

Conclusion: Significant difference was found in expiratory parameters among obstructive and restrictive conditions.