Omar Fernández

Omar Fernández
University of Santiago, Chile | USACH · Escuela de Ciencias en Actividad Física, el Deporte y la Salud

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11
Publications
2,292
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171
Citations
Citations since 2017
11 Research Items
171 Citations
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20172018201920202021202220230102030405060
20172018201920202021202220230102030405060

Publications

Publications (11)
Article
Full-text available
Background: Physical activity and sedentary behavior are related with psycho-social variables among youth, however its relationship with bullying victimization is unclear. The aim of the study was to clarify the associations between physical activity and sedentary behaviors with bullying victimization among children and adolescents. Methods: Two i...
Article
Full-text available
Background: Self-regulation comprises a series of important competencies, such as the ability to control inner states or responses toward thoughts, attention, emotions, or even performance. The relationship between self-regulation and different healthy lifestyle behaviors among children has not been examined in depth to date. The aim of this study...
Article
Full-text available
Background/Objective The aim of the study was to explore the differences between physical activity and/or screen time levels on cognitive (Life satisfaction LS) and affective (Positive affect, PA and Negative affect NA) components of subjective well-being (SWB) in children. Method This cross-sectional study enrolled 1,540 children (1,040 boys, 8–1...
Article
Full-text available
The aim of the study was two‐fold: (i) to examine the association between health‐related physical fitness and attention capacity in Latin‐American children and adolescents with overweight and obesity; and (ii) to test whether body composition outcomes are moderators of this association. A cross‐sectional design was used to study 201 overweight/obes...
Article
Objectives The aim of the present study was to test a before-school physical activity intervention (Active-Start intervention) on blood pressure in children and examine whether sedentary time moderates the effect of the intervention on blood pressure. Design Randomized controlled trial. Methods The Active-Start intervention comprising 170 childre...
Article
Full-text available
The aim of the study was three-fold: (i) to test a before-school physical activity intervention (Active-Start) on academic performance, selective attention and concentration capacity; (ii) to test the effect of the Active-Start intervention on anthropometry, body composition and physical fitness parameters; and (iii) whether the physical fitness co...
Article
Full-text available
Background/Objective: To test the effectiveness of an 8-week before-school physical activity program to reduce bullying victimization among a group of socially disadvantaged children in the Active-Start study. Method: A non-blinded randomized controlled trial was conducted in three public schools classified as highly vulnerable and located in a dep...
Article
Objective: The aim of the study was to examine the combined associations between handgrip strength and adherence to a Mediterranean diet with blood pressure (BP) in Chilean children. Research Methods & Procedures: This cross-sectional study enrolled 1,140 children (794 boys and 346 girls) aged 8–12 years old. Handgrip strength was measured using a...
Article
Garcia-Hermoso, A, Cofre-Bolados, C, Andrade-Schnettler, R, Ceballos-Ceballos, R, Fernández-Vergara, O, Vegas-Heredia, ED, Ramírez-Vélez, R, and Izquierdo, M. Normative reference values for handgrip strength in Chilean children at 8-12 years old using the empirical distribution and the lambda, mu, and sigma statistical methods. J Strength Cond Res...
Article
The aim of this study was two-fold: (1) to provide sex- and age-specific handgrip reference standards for Chilean children aged 8-12 years; and (2) to compare the levels of handgrip strength of Chilean children with those of children from other countries. This cross-sectional study enrolled 2,026 schoolchildren (boys n=1,334 and girls n=692, mean a...

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Project (1)
Project
a) determinar los patrones del modo de desplazamiento y su evolución respecto a la etapa del liceo/colegio, b) conocer características descriptivas del desplazamiento activo tales como el tiempo de desplazamiento o la distancia, c) indagar en las barreras del desplazamiento activo y, d) conocer variables asociadas al desplazamiento activo como el ingreso socioeconómico, lugar de residencia, el nivel de actividad física, el nivel de condición física y calidad de vida, y variables antropométricas.