RESUMO
La inactividad física, cada vez más frecuente entre los niños y las niñas, está asociada a diferentes problemas de salud, entre ellos, la dinapenia pediátrica, caracterizada por bajos niveles de aptitud muscular. Esto suscita la necesidad de implantar programas de Entrenamiento de Fuerza Pediátrico (EFP) para mejorar la salud en esta población. Este trabajo tiene como principal objetivo realizar una revisión sistemática sobre las principales investigaciones que abordaron los efectos de un programa de EFP sobre diferentes parámetros de salud en niños y niñas de 6 a 13 años. Se ha seguido el protocolo PRISMA utilizándose 5 bases de datos (Web of Science, Scopus, Sportdiscus, PubMed y ERIC). Los resultados obtuvieron un total de 587 artículos, de los cuales 13 cumplieron los criterios de inclusión y exclusión. Tras el análisis de los 13 artículos, los resultados muestran que el efecto de las intervenciones de EFP en niños mostró mejoras sustanciales en diferentes parámetros antropométricos (composición corporal, IMC, circunferencia de la cintura y densidad mineral ósea), y en menor medida en variables fisiológicas (presión arterial y perfil lipídico) y psicológicas (autoconcepto y autoestima). Se concluye que los programas de EFP parecen establecerse como un tratamiento no farmacológico adecuado para mejorar determinados parámetros de salud antropométricos, precisando más investigación para determinar el efecto sobre variables fisiológicas y psicológicas. (AU)
Physical inactivity, increasingly common among children, is associated with different health problems, including pediatric dynapenia, characterized by low levels of muscle fitness. This raises the need to implement Pediatric Resistance Training (PRT) programs to improve health in this population. The main objective of this work is to investigate the efficacy of PRT-based interventions on different health parameters in boys and girls aged 6 to 13 years. The PRISMA protocol has been followed, using a total of 5 databases (Web of Science, Scopus, Sportdiscus, PubMed and ERIC). The results obtained a total of 587 articles were obtained, of which 13 met the inclusion and exclusion criteria. Following the analysis of the 13 articles, the results show that the effect of PRT interventions in children showed substantial improvements in different anthropometric parameters (body composition, BMI, waist circumference and bone mineral density), and to a lesser extent in physiological (blood pressure and lipid profile) and psychological (self-concept and self-esteem) variables. It is concluded that PRT programs seem to be established as a suitable non-pharmacological treatment to improve certain anthropometric health parameters, with further research needed to determine the effect on physiological and psychological variables. (AU)
Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Treinamento Resistido , Atividade Motora , CriançaRESUMO
Much of the evidence examining temporal trends in fitness among youth has found a decrease in measures of muscular strength and muscular power over recent decades. The aim of this study was to examine trends in lower body muscular power in Spanish boys over 47 years. In 1969 140 boys (10-11 years; body mass index = 19.24, SD = 2.91 kg/m2) and in 2016, 113 boys (10-11 years; body mass index = 19.20, SD = 3.15 kg/m2) were recruited. Lower body power was assessed using the vertical jump (VJ) and standing long jump (SLJ) tests. Significant differences and a large effect size were shown between groups in the SLJ (p = 0.001; d = 0.94) and the VJ (p = 0.001; d = 0.66). SLJ data in 1969 were higher (1.52 m, SD = 0.19) when compared to the 2016 data (1.34 m, SD = 0.18). The VJ performance of the 1969 sample was also higher (25.95 cm; SD = 6.58) than the 2016 sample (21.56 cm; SD = 4.72). SLJ and VJ performance of the 2016 group decreased 11.8% and 16.9%, respectively. There were no significant differences between groups in body mass index. The results indicate a secular decline in lower body muscular power in 10-11-year-old Spanish boys with no significant changes in body mass index over the 47-year study period.
