Background: Pranayama is an art and has techniques to make the respiratory organs to move and expend intentionally, rhythmically and intensively. Pranayama brings several physiological changes in the body. Aim: The aim of the present study is to investigate the effects of ten weeks pranayama training on peripheral oxygen saturation of pre adolescent boys. Method: For the purpose of the study 30 male students were selected randomly as subjects from Jawahar Navodaya Vidyalaya, Banipur, North 24 Parganas, West Bengal, India. Age of the students ranges from 11 to 13 years. All the subjects were divided randomly in to experimental and control groups equally. Experimental group received pranayama training for ten weeks. Data were collected before and after ten weeks of training. Peripheral oxygen saturation was measured by pulse oximeter and values were recorded in percentage. Result: ANCOVA was applied as statistical procedure and the level of significance was set at 0.05 levels. Significant difference was observed between experimental and control group in pre test and post test scores. Discussion: After ten weeks of pranayama training experimental group improved significantly on peripheral oxygen saturation. Conclusion: From the above result it was concluded that ten weeks of pranayama training had a significant positive effect on peripheral oxygen saturation of pre adolescent boys
