RT Journal Article T1 Evaluation of Physical Activity, Sedentary Patterns, and Lifestyle Behavior in Spanish Preschool Children from the CORALS Cohort A1 Jurado Castro, José Manuel A1 Pastor Villaescusa, Belén A1 Castro-Collado, Cristina A1 Gil Campos, Mercedes A1 Leis Trabazo, María Rosaura A1 Babío, Nancy A1 Moreno, Luis A. A1 Navas-Carretero, Santiago A1 Portolés, Olga A1 Moreira Echeverría, Ana A1 Salas-Salvado, Jordi A1 Miguel Etayo, Pilar de A1 Flores Rojas, Katherine A1 Vázquez Cobela, Rocío A1 Valero Sales, Julia K1 Child K1 24-h movement K1 Lifestyle K1 Physical activity K1 Sedentary behavior AB Background Physical activity (PA) and sedentary lifestyle are recognized as modifiable risk factors for non-communicable diseases. Healthy habits in early childhood tend to persist throughout life. This study aims to evaluate the physical activity and sedentary behavior patterns in a cohort of Spanish preschool children using device-based measures, and compare these patterns by sex. This study analyzed a sample of 643 preschoolers aged 3–6 years with valid accelerometry data from the Childhood Obesity Risk Assessment Longitudinal Study (CORALS) cohort (NCT06317883; May 30, 2024).Results 67% of preschoolers met the international PA recommendations, with 72.1 min of moderate-vigorous PA(MVPA) per day. Boys exhibited higher levels of MVPA than girls, and MVPA increased with age in both groups. Sedentary time was higher on weekends, and boys spent more time watching TV than girls. Involvement in extracurricularsports was reported by 67.5% of children, with boys showing a greater engagement in outdoor activities.Conclusions A relevant proportion of Spanish preschool children meet the international PA recommendations, with variations based on sex, age, and day of the week, reflecting global trends at this stage of life. Future interven‑tions should address sex-specific preferences and age-related changes to enhance the effectiveness of promoting active lifestyles in this population. PB Springer Open SN 2199-1170 YR 2025 FD 2025-06-09 LK https://hdl.handle.net/10347/45080 UL https://hdl.handle.net/10347/45080 LA eng NO Jurado-Castro, J. M., Pastor-Villaescusa, B., Castro-Collado, C., Gil-Campos, M., Leis, R., Babio, N., Moreno, L. A., Navas-Carretero, S., Portolés, O., Echeverría, A. M., De La Torre-Aguilar, M. J., Picáns-Leis, R., Salas-Salvadó, J., de Miguel-Etayo, P., Flores-Rojas, K., Vázquez-Cobela, R., Sales, J. V., Miguel-Berges, M. L., Izquierdo-López, I., Gómez-Martínez, C., … CORAL Study investigators (2025). Evaluation of Physical Activity, Sedentary Patterns, and Lifestyle Behavior in Spanish Preschool Children from the CORALS Cohort. Sports medicine - open, 11(1), 71. https://doi.org/10.1186/s40798-025-00865-2 NO Funds for the establishment of the CORALS cohort in the first year of the study (2019) were provided by an agreement between the Danone Institute from Spain and the CIBEROBN. The CORALS study is partially supported by the Generalitat Valenciana (PROMETEO 21/2021) and the Department of Education, Gobierno de Navarra (0000-RES1-2020-000338). DS Minerva RD 27 abr 2026