100 suitable patients of lung cancer shall be taken into the study over a period of 2 years. As per the existing treatment protocol in our department, all patients suitable shall undergo a routine Pulmonary function testing (PFT). Subsequently, recording of the breath hold shall be done at the following times 1. At time of simulation 2. At the time of first fraction of radiotherapy 3. At mid radiotherapy 4. At radiotherapy conclusion After the recording at a), patients shall be asked to perform deep breathing exercises/spirometer ball exercise to see the effect of training on the breath holding times.
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Breath holding time in various phases of the respiratory cycle
Timeframe: 2 years