Comparison between effect of Buteyko breathing technique and Stacked breathing technique on pulmonary function and quality of life in patients undergone upper abdominal surgery

This study is to see the effectiveness of the Buteyko breathing and Stack breathing technique on quality of life and pulmonary function in upper abdominal surgery patients. 16 patients with upper abdominal surgery will be recruited based on inclusion and exclusion criteria. There will be two groups: the first group will receive Buteyko breathing and the second group will receive the stack breathing technique. The whole intervention will be of 5 days and the outcome will be assessed at the baseline and 5th day of the intervention.  And data will be analyzed statistically.