 One hundred eighty one adolescents were enrolled and randomized in the three groups of the study, by the same professional teacher of physical education who conducted the program. One hundred fifty remained the end of the program and the 6-months follow up and were included in the analysis. None of the subjects had an organic cause for hisher obesity and none received any medication, which would interfere with growth or weight control e.g. corticosteroids, thyroid hormone. 