DOI: 10.36347/sjams.2019.v07i02.031

Pages: 584-588

The change in body posture can affect the resting length of respiratory muscles and the vestibular system contributes to altering the respiratory muscle activity during movement and change in the posture. Ideally, Spirometry is done in sitting posture until the subject is unable to do so. The aim of our study was to investigate the effect of different posture on pulmonary function test parameters like FVC & FEV1 in male medical students. The mean age, height and weight of the all participants were 21± 2 years, 61 ± 6 Kg and 172 ± 5.4 cm. Forty male participants, aged between 17-25 years were enrolled after they had signed a written consent. Spirometer measurements (FVC & FEV1) was taken in Standing, Normal Sitting, Kyphotic Sitting, Slumped Sitting and Supine postures. Each measurement was taken three times and the average values were analysed and the data were compared by One-way ANOVA and POST HOC Test statistically. There was significant difference in the lung function variables across all the body postures. (p<0.05) FVC and FEV1 were found to be higher in the standing posture as compared to normal sitting & supine posture. FVC and FEV1 were significantly lower only in supine posture (p<0.05) as compared to standing and normal sitting posture.