Tabriz University of Medical Sciences Health Promotion Perspectives 2228-6497 12 3 2022 12 10 The pandemic of childhood obesity: Challenges and possibilities from physical activity 229 230 10.34172/hpp.2022.29 EN Alejandro Almonacid-Fierro https://orcid.org/0000-0002-8328-017X Javier González-Almonacid https://orcid.org/0000-0001-9555-1240 LETTER 10.34172/hpp.2022.29 2022 08 23 2022 08 25