The post-communist bloc countries (e.g. the Czech Republic) appear to have a tendency to replicate the “negative” health trends that had been previously witnessed in economically developed Western countries: a decrease in PA and an increase of overweight and obesity PUBLIKACE 1. Indeed, Central and Eastern European countries could learn from such “negative” Western European and global experiences PUBLIKACE 2. The adolescent population represents one of the most physically active subpopulations PUBLIKACE 3.