Faculty of Sport Sciences;
Waseda University;
Tokorozawa;
Japan;
Graduate School of Education;
Okayama University;
Okayama;
Japan;
Graduate School of Sport Sciences;
Waseda University;
Tokorozawa;
Japan;
Sonan Junior High School;
Okayama;
Japan;
Public; Health; Physical; Activity; Adolescents; Ecological; Model; Structural; Equation; Modeling;