a b s t r a c tObjective: Evaluate the cardiorespiratory fitness (CRF) and the body mass index (BMI) of schoolchildren according to the cutoff points established by the Fitnessgram ® . Just as determine the influence of BMI on CRF in children and propose an equation for predicting VO 2 max from the body composition. Method: The sample consisted of 288 students of basic level of public education in the city of AracajuSergipe -Brazil, aged between 10 and 14 years, of these, 142 were female. To evaluate the CRF the 20-m shuttle run test was chosen. The results of the variable were classified in accordance with the criteria established by the Fitnessgram ® . Results: It was evidenced that the cardiorespiratory fitness on males was higher than females. Relative to BMI, there were no differences between the groups, while more than 80% of the entire sample behaved within criteria established by the Fitnessgram ® . On the other hand, 57% of the female group presented VO 2 max below criterion. It was confirmed an inverse relationship between VO 2 max and BMI on children and adolescents. Conclusion: The students in this study showed adequate levels of body composition and CRF below the area related to health, according to the criteria of the Fitnessgram ® . The proposition of a linear regression equation to estimate VO 2 max without exercise pointed out an inverse relationship between both variables.Palabras clave: Aptitud cardiorrespiratoria Composición corporal Índice de masa corporal Fitnessgram ® Escolares r e s u m e n Objetivo: Evaluar la aptitud cardiorrespiratoria y el índice de masa corporal (IMC) de escolares mediante los puntos de corte establecidos por la batería internacional de test Fitnessgram ® . Así como determinar la influencia del IMC en la aptitud cardiorrespiratoria (CRF) en niños y proponer una ecuación de predicción del VO 2 máx a partir de la composición corporal. Método: La muestra estuvo conformada por 288 estudiantes de nivel básico de la educación pública de la ciudad de Aracaju-Sergipe-Brasil, de edades comprendidas entre 10-14 años, de los cuales, 142 eran mujeres. Para evaluar el CRF fue utilizada la prueba de 20-m shuttle run test (PCN). Los resultados de la variable se clasificaron de acuerdo con los criterios de aplicación establecidos por el test internacional Fitnessgram ® . Resultados: Se evidenció que la CRF en varones fue mayor que en las mujeres. Relativo al IMC, no hubo diferencias entre los grupos, mientras que más de 80% de toda la muestra se comportó dentro de los criterios establecidos por la Fitnessgram ® . Por otro lado, el 57% del grupo femenino presentó VO 2 máx por debajo de los niveles. Se confirmó una relación inversa entre el VO 2 máx y el IMC en niños y adolescentes. Conclusión: Los escolares, en este estudio, mostraron niveles adecuados de composición corporal y CRF por debajo del área relacionada con la salud de acuerdo con los criterios de Fitnessgram
Background: One of the difficulties in maintaining long-term adherence to exercise is the distance from home to the place of exercise.
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