摘要:Physical inactivity is generally accepted as one of the most serious health risk behaviors of young adults contributing to poorer health outcome. This study aimed at determining the impacts of behavioral and medical problems on physical activity (PA) among the Egyptian youth. In this study, 500 Egyptian men aged 18 - 30 years old attending for medical examination in Qena University Outpatient department between March 2013 and March 2014 were surveyed; risk factors for physical inactivity were analyzed. Significantly, 58.0% of smokers demonstrated the tendency to physical inactivity; only 0.8% did vigorous PA [X(df = 2) = 15.53, p X2(df = 2) = 13.96, p p = 0.045, respectively]. As much as 87.1% of the obese had mild PA, too [X2(df = 2) = 16.62, p X2(df = 2) = 15.6, p X2(df = 2) = 8.22, p = 0.027]. Both, hepatitis B virus (HBV)- and hepatitis C virus (HCV)-infection, and diabetes mellitus (DM) were not risk for physical inactivity. The present work provides that PA diminishes with some chronic illnesses and behavioral derangements, e.g., drug abuse and smoking. Interestingly, HBV, HCV infections and DM are not among risks for physical inactivity.