Quality of life assessment is a valuable modern method for diagnosing deviations in various types of individual functioning. The aim of the study is to assess the quality of adolescents’ life taking into account their level of physical fitness. The quality of life was analyzed among adolescents aged 15–17 in a comprehensive school (n = 139), a separate analysis was conducted among schoolchildren systematically engaged in physical activity, including sports sections (n = 61).
