Evidence indicates that regular exercise reduces respiratory symptoms of asthma and improves pulmonary volumes and capacities. This is also a correlation between sleep quality and respiratory Parameters. The purposes of this study was to role of physical activity and sleep quality in prevention of asthma, comparison of respiratory parameters, and sleep quality in active and inactive men. healthy young male aged 20-24 years, voluntarily participated in the study in tow groups (each n=15) namely active and inactive Respiratory parameters including: forced expiratory volume in the first second (FEV1), Percentage of Forced expiratory volume in the first second (% FEV1), Forced vital capacity (FVC), maximum forced expiratory flow rates at 25and 75% of expired FVC (MEF25% and %75) were measured by spirometer with standard procedures Pittsburg sleep quality index (PSQI) used to measure sleep quality. The values of FVC (P
Pulmonary volume, sleep, physical activity.