The Effectiveness of High-Intensity Interval Training on Sprint Speed Performance among Elementary School Students in Rural Areas: A Quasi-Experimental Study. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga, [S. l.], v. 18, n. 2, p. 2845–2866, 2026. DOI: 10.26858/cpjok.v18i2.774. Disponível em: https://competitor.idjournal.eu/index.php/competitor/article/view/774. Acesso em: 25 may. 2026.