To study the effect of Different Positions on FVC and FEV1 measurements in Obstructive Pulmonary Disease Patients.

Obstructive diseases include conditions in which there is a resistance to airflow either through reversible factors such as bronchospasm or inflammation, or through irreversible factors such as airway fibrosis or loss of elastic recoil owing to damage to the airways and the alveoli. Types include: COPD, Asthma and Cystic fibrosis. COPD is a common disease worldwide. Worldwide prevalence of COPD ranges from 4–6%. Spirometry can be helpful in determining the effects of position on ventilator functions. It is the best method for detecting borderline to mild airway obstruction, which occurs early without the appearance of any symptoms or signs. FEV1 is the most important spirometry measure for the assessment of airflow obstruction. Many researchers have reported significant changes in pulmonary function with positioning. Reductions of 12% for forced vital capacity and 15% for force expiratory volume in one second have been observed in normal individuals between the different body positions of sitting and slumped half lying. The aim of the study was to determine the Effect of different positions on FVC and FEV1 measurements in obstructive pulmonary disease patients. The objective of this study was to investigate changes in pulmonary function values of obstructive pulmonary disease patients with change in position.30 samples were selected according to convenient sampling. Outcome measures were FEV1 and FVC which were calculated in different positions and the result was obtained for comparing the values of FVC and FEV1 in all the test positions. On application of ANOVA test the following values were obtained. For FVC the f value obtained is 4.187 and p value obtained is 0.003 which is statically significant. For FEV1 the f value obtained is 6.343 and p value obtained is 0.006 which is statically significant. There is an effect of various body positions on FVC and FEV1 in patients with obstructive pulmonary disease.