The Relationship Between Physical Activity, Concentration, and Academic Achievement in High School Students. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 18, n. 1, p. 1187–1196, 2026. DOI: 10.26858/cpjok.v18i1.562. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/562. Acesso em: 25 may. 2026.