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Updated: Mar 1, 2026

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
Published on: June 20, 2025
[Physical activity, obesity and self-esteem in chilean schoolchildren]
Félix Zurita-Ortega1, Manuel Castro-Sánchez2, Sonia Rodríguez-Fernández3
1Departamento Didáctica de la Expresión Corporal, Universidad de Granada, España, felixzo@ugr.es.
Background:
Obesity is a worldwide epidemic disease and a problem for the Chilean society.
Aim:
To analyze the relationship between physical condition, body mass index (BMI), level of physical activity and self-esteem. Material ad Methods: Questionnaires to assess self-esteem (Rosemberg scale) and levels of physical activity (Physical Activity Questionnaire for older Children, PAQ-C) were answered by 515 children aged 10.5 ± 0.5 years from 27 schools of Santiago de Chile. BMI was calculated. Course-Navette test was carried out, vertical jump and hand dynamometry were measured. For statistical analysis, structural equations were used.
Results:
An acceptable goodness of fit for the models was found. There was a positive relationship between BMI and hand dynamometry, as well as a negative relationship between BMI and maximal oxygen consumption, jumping ability, physical activity and self-esteem. Finally, self-esteem was positively related to physical activity engagement.
Conclusions:
In these children, self-esteem was related to physical activity variables.
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