Comparación de la actividad física por género y grasa corporal en escolares mexicanos
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Abstract
Nuestro objetivo fue comparar la intensidad de actividad física mediante acelerómetros
y monitores de frecuencia cardiaca durante la clase de educación
física y el recreo en estudiantes de tercero y cuarto grado de primaria de acuerdo
al género y porcentaje de grasa corporal. La intensidad de la actividad física se
evaluó con acelerómetros ActiGraph-GT9X y monitores de frecuencia cardiaca
Polar-bluetooth en 28 niños y 26 niñas durante 8 clases de educación física y
recreo, se clasificó el porcentaje de grasa como normal o alto mediante análisis
de impedancia bioeléctrica utilizando el equipo Inbody-720. La igualdad de
la varianza calculada con t-Student reportó una P-Valor menor a α≤0.005 con
diferencias significativas en clases de educación física entre los promedios de
la actividad física moderada a vigorosa (hombres: 0,003; mujeres: 0,001) y la
frecuencia cardiaca lat/min (hombres: 0,001, mujeres: 0,000) en participantes
con porcentaje de grasa normal en comparación con alta. La intensidad durante
el recreo fue mayor que en educación física y con actividad física moderada a
vigorosa inferior al 50%, por lo anterior es importante retroalimentar constructivamente
la manera de impartir la educación física mediante capacitación con
estrategias didácticas para involucrar en mayor actividad física a escolares con
obesidad.
Our aim was to compare the intensity of physical activity using accelerometers and heart rate monitor during physical education class and recess in students of third and fourth grade of primary education according to gender and body fat percentage. Method: To determine the intensity of physical activity accelerometers ActiGraph-GT9X and heart rate monitors Polar-bluetooth were used, in 28 boys and 26 girls during 8 physical education classes and 8 recess, to determine the percentage of body fat as normal or high bioelectrical impedance analysis was performed using the Inbody-720 equipment. The equality of variance was calculated using the Student t test for independent samples resulting a P-value less than α≤0.005 with significant differences in physical education classes between the averages of moderate to vigorous physical activity (men: 0.003; women: 0.001) and heart rate beats/min (men: 0.001; women: 0.000) in participants with normal body fat compared to high. The intensity of physical activity during recess was higher in relation to physical education classes and with a moderate to vigorous physical activity less than 50% of time class, due, is important a feedback for teachers in strategies for involving students with increased risk of obesity in moderate to vigorous physical activity.
Our aim was to compare the intensity of physical activity using accelerometers and heart rate monitor during physical education class and recess in students of third and fourth grade of primary education according to gender and body fat percentage. Method: To determine the intensity of physical activity accelerometers ActiGraph-GT9X and heart rate monitors Polar-bluetooth were used, in 28 boys and 26 girls during 8 physical education classes and 8 recess, to determine the percentage of body fat as normal or high bioelectrical impedance analysis was performed using the Inbody-720 equipment. The equality of variance was calculated using the Student t test for independent samples resulting a P-value less than α≤0.005 with significant differences in physical education classes between the averages of moderate to vigorous physical activity (men: 0.003; women: 0.001) and heart rate beats/min (men: 0.001; women: 0.000) in participants with normal body fat compared to high. The intensity of physical activity during recess was higher in relation to physical education classes and with a moderate to vigorous physical activity less than 50% of time class, due, is important a feedback for teachers in strategies for involving students with increased risk of obesity in moderate to vigorous physical activity.
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Bibliographic citation
Hall López, J. A., Ochoa Martínez, P. Y., Meza, F., Sáenz-López Buñuel, P. (2019). Comparación de la actividad física por género y grasa corporal en escolares mexicanos. Revista Iberoamericana de Ciencias de La Actividad Física Y El Deporte, 8(1), 1. DOI: https://doi.org/10.24310/riccafd.2019.v8i1.5763













