Association between sleep-related breathing disorders and academic performance among children from Concepción, Chile.

The objective of this study was to establish an association between academic performance in Math, Language Arts, and Science and the presence of sleep-related breathing disorders (SRBDs) among healthy schoolchildren from the city of Concepción, Chile. Healthy children were defined as those without comorbidities. Outcome measures of interest included the analysis of academic performance in Math, Language Arts, and Science and the presence of SRBD assessed using the Pediatric Sleep Questionnaire.

Effect of abdominal muscle training on respiratory muscle strength and forced expiratory flows in sedentary, healthy adolescents.

Introduction: Respiratory muscle training is the most commonly used method to revert respiratory muscle weakness; however, the effect of protocols based on non-respiratory maneuvers has not been adequately studied in the pediatric population. The objective of this study was to establish the effect of abdominal muscle training on respiratory muscle strength and forced expiratory flows in healthy adolescents.

Methods: This was a quasi-experiment.

[Reference values for the 6-minutes walking test in healthy Chilean children].

Background: The 6-minutes walking test (6WT) is the ideal submaximal test for the evaluation and follow-up of patients with chronic respiratory diseases. There are no reference values (RV) for Chilean children using the American Thoracic Society guidelines.

Aim: To generate 6WT reference values for Chilean children aged 6 to 14 years.