Iván Rodríguez1,2,3,4, Lysien Zambrano4,5, Carlos Manterola3,6,7. 1. Escuela de Kinesiología, Facultad de Ciencias de la Salud, Universidad San Sebastián, Concepción, 4030000, Chile. ivan.rodriguez@uss.cl. 2. Carrera de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Concepción, 4030000, Chile. 3. Programa de Doctorado en Ciencias Médicas, Universidad de la Frontera, Temuco, 4780000, Chile. 4. Programa de Doutorado em Farmacologia, Departamento de Fisiologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, 04023, Brasil. 5. Departamento de Morfología, Facultad de Ciencias Médicas, Universidad Nacional Autónoma de Honduras (UNAH), 11101, Honduras. 6. Departamento de Cirugía, Universidad de la Frontera, Temuco, 4780000, Chile. 7. Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Providencia, 7500000, Chile.
Abstract
INTRODUCTION: Physiological parameters used to measure exercise intensity are oxygen uptake and heart rate. However, perceived exertion (PE) is a scale that has also been frequently applied. The objective of this study is to establish the criterion-related validity of PE scales in children during an incremental exercise test. METHODS: Seven electronic databases were used. Studies aimed at assessing criterion-related validity of PE scales in healthy children during an incremental exercise test were included. Correlation coefficients were transformed into z-values and assessed in a meta-analysis by means of a fixed effects model if I2 was below 50% or a random effects model, if it was above 50%. RESULTS: wenty-five articles that studied 1418 children (boys: 49.2%) met the inclusion criteria. Children's average age was 10.5 years old. Exercise modalities included bike, running and stepping exercises. The weighted correlation coefficient was 0.835 (95% confidence interval: 0.762-0.887) and 0.874 (95% confidence interval: 0.794-0.924) for heart rate and oxygen uptake as reference criteria. The production paradigm and scales that had not been adapted to children showed the lowest measurement performance (p < 0.05). CONCLUSION: Measuring PE could be valid in healthy children during an incremental exercise test. Child-specific rating scales showed a better performance than those that had not been adapted to this population. Further studies with better methodological quality should be conducted in order to confirm these results. Sociedad Argentina de Pediatría.
INTRODUCTION: Physiological parameters used to measure exercise intensity are oxygen uptake and heart rate. However, perceived exertion (PE) is a scale that has also been frequently applied. The objective of this study is to establish the criterion-related validity of PE scales in children during an incremental exercise test. METHODS: Seven electronic databases were used. Studies aimed at assessing criterion-related validity of PE scales in healthy children during an incremental exercise test were included. Correlation coefficients were transformed into z-values and assessed in a meta-analysis by means of a fixed effects model if I2 was below 50% or a random effects model, if it was above 50%. RESULTS: wenty-five articles that studied 1418 children (boys: 49.2%) met the inclusion criteria. Children's average age was 10.5 years old. Exercise modalities included bike, running and stepping exercises. The weighted correlation coefficient was 0.835 (95% confidence interval: 0.762-0.887) and 0.874 (95% confidence interval: 0.794-0.924) for heart rate and oxygen uptake as reference criteria. The production paradigm and scales that had not been adapted to children showed the lowest measurement performance (p < 0.05). CONCLUSION: Measuring PE could be valid in healthy children during an incremental exercise test. Child-specific rating scales showed a better performance than those that had not been adapted to this population. Further studies with better methodological quality should be conducted in order to confirm these results. Sociedad Argentina de Pediatría.
Authors: Pedro Delgado-Floody; Miguel Espinoza-Silva; Felipe García-Pinillos; Pedro Latorre-Román Journal: Eur J Pediatr Date: 2018-04-21 Impact factor: 3.183