LAMTIAR, R. R.; SIBARANI, E. P. Correlation of Body Mass Index with Lumbar Flexibility in Obese Students at HKBP Nommensen University Medan. Jurnal EduHealth, [S. l.], v. 13, n. 01, p. 425–430, 2022. Disponível em: https://ejournal.seaninstitute.or.id/index.php/healt/article/view/2793. Acesso em: 5 may. 2026.