SORIANO-FÉRRIZ, Beatriz; ALACID, Fernando. FLEXIBILITY PROGRAMS AND EXERCISES WITHIN PHYSICAL EDUCATION CLASSES, IN SCHOOLCHILDREN, AND THEIR EFFECT ON THE IMPROVEMENT OF HAMSTRING EXTENSIBILITY: A SYSTEMATIC REVIEW. MHSalud: Revista en Ciencias del Movimiento Humano y Salud, [S. l.], v. 15, n. 1, p. 1–11, 2018. DOI: 10.15359/mhs.15-1.1. Disponível em: https://www.revistas.una.ac.cr/index.php/mhsalud/article/view/10729.. Acesso em: 11 apr. 2025.