Examinando por Autor "Migueles, Jairo H."

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    Association of sedentary behavior with brain structure and intelligence in children with overweight or obesity: The activebrains project
    (MDPI, 2024-04) Zavala-Crichton, Juan Pablo; Esteban-Cornejo, Irene; Solis-Urra, Patricio; Mora-Gonzalez, José; Cadenas-Sanchez, Cristina; Rodriguez-Ayllon, María; Migueles, Jairo H.; Molina-Garcia, Pablo; Verdejo-Roman, Juan; Kramer, Arthur F.; Hillman, Charles H.; Erickson, Kirk I.; Catena, Andrés; Ortega, Francisco B.
    We investigated the associations of different sedentary behaviors (SB) with gray matter volume and we tested whether SB related to gray matter volume is associated with intelligence. Methods: 99 children with overweight or obesity aged 8–11 years participated in this cross-sectional study. SB was measured using the Youth Activity Profile-Spain questionnaire. T1-weighted images were acquired with a 3.0 T Magnetom Tim Trio system. Intelligence was assessed with the Kaufman Brief Test. Whole-brain voxel-wise multiple regression models were used to test the associations of each SB with gray matter volume. Results: Watching TV was associated with lower gray matter. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
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    Study protocol and rationale of the "cogni-action project" a cross-sectional and randomized controlled trial about physical activity, brain health, cognition, and educational achievement in schoolchildren
    (BioMed Central Ltd, 2019-07-26) Solis-Urra, Patricio; Olivares-Arancibia, Jorge; Suarez-Cadenas, Ernesto; Sanchez-Martinez, Javier; Rodríguez-Rodríguez, Fernando; Ortega, Francisco B.; Esteban-Cornejo, Irene; Cadenas-Sanchez, Cristina; Castro-Piñero, Jose; Veloz, Alejandro; Chabert, Steren; Saradangani, Kabir P.; Zavala-Crichton, Juan Pablo; Migueles, Jairo H.; Mora-Gonzalez, Jose; Quiroz-Escobar, Milton; Almonte-Espinoza, Diego; Urzúa, Alfonso; Dragicevic, Constantino D.; Astudillo, Aland; Méndez-Gassibe, Eduardo; Riquelme-Uribe, Daniel; Azagra, Marcela Jarpa; Cristi-Montero, Carlos
    Background: Education and health are crucial topics for public policies as both largely determine the future wellbeing of the society. Currently, several studies recognize that physical activity (PA) benefits brain health in children. However, most of these studies have not been carried out in developing countries or lack the transference into the education field. The Cogni-Action Project is divided into two stages, a cross-sectional study and a crossover-randomized trial. The aim of the first part is to establish the associations of PA, sedentarism, and physical fitness with brain structure and function, cognitive performance and academic achievement in Chilean schoolchildren (10-13 years-old). The aim of the second part is to determinate the acute effects of three PA protocols on neuroelectric indices during a working memory and a reading task. Methods: PA and sedentarism will be self-reported and objectively-assessed with accelerometers in a representative subsample, whilst physical fitness will be evaluated through the ALPHA fitness test battery. Brain structure and function will be assessed by magnetic resonance imaging (MRI) in a randomized subsample. Cognitive performance will be assessed through the NeuroCognitive Performance Test, and academic achievement by school grades. In the second part 32 adolescents (12-13 year-old) will be cross-over randomized to these condition (i) "Moderate-Intensity Continuous Training" (MICT), (ii) "Cooperative High-Intensity Interval Training" (C-HIIT), and (iii) Sedentary condition. Neuroelectric indices will be measures by electroencephalogram (EEG) and eye-tracking, working memory by n-back task and reading comprehension by a reading task. Discussion: The main strength of this project is that, to our knowledge, this is the first study analysing the potential association of PA, sedentarism, and physical fitness on brain structure and function, cognitive performance, and academic achievement in a developing country, which presents an important sociocultural gap. For this purpose, this project will use advanced technologies in neuroimaging (MRI), electrophysiology (EEG), and eye-tracking, as well as objective and quality measurements of several physical and cognitive health outcomes. Trial registration: ClinicalTrials.gov identifier: NCT03894241 Date of register: March 28, 2019. Retrospectively Registered. © 2019 The Author(s).