Effects of programmed physical activity on body composition in post-pubertal schoolchildren
To assess body composition modifications in post-pubertal schoolchildren after practice of a physical activity program during one school year. The sample consisted of 386 students aged between 15 and 17 years and divided into two groups: the study group (SG) comprised 195 students and the control gr...
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Published in | Jornal de pediatria Vol. 91; no. 2; pp. 122 - 129 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Brazil
Elsevier Editora Ltda
01.03.2015
Sociedade Brasileira de Pediatria Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | To assess body composition modifications in post-pubertal schoolchildren after practice of a physical activity program during one school year.
The sample consisted of 386 students aged between 15 and 17 years and divided into two groups: the study group (SG) comprised 195 students and the control group (CG), 191. The SG was submitted to a physical activity program and the CG attended conventional physical education classes. Body composition was assessed using body mass index (BMI), percentage of body fat (%BF), fat mass (FM), and lean mass (LM).
A positive effect of the physical activity program on body composition in the SG (p<0.001) was observed, as well as on the interaction time x group in all the variables analyzed in both genders. A reduction in %BF (mean of differences = -5.58%) and waist circumference (-2.33cm), as well as an increase in LM (+2.05kg) were observed in the SG for both genders, whereas the opposite was observed in the CG.
The practice of programmed physical activity promotes significant reduction of body fat in post-pubertal schoolchildren.
Verificar as modificações da composição corporal de escolares pós-púberes após a prática da atividade física programada durante um ano letivo.
Amostra composta de 386 alunos, divididos em dois grupos: estudo 195 e controle 191, com idade entre 15 e 17 anos, o grupo estudo (GE) submetido à atividade física programada e o grupo controle (GC) a aulas convencionais de educação física. A composição corporal foi avaliada pelo índice de massa corporal (IMC), percentual de gordura (%G) e massa gorda (MG) e magra (MM).
Foi possível observar um efeito positivo do programa de atividade física sobre a composição corporal no GE (p<0,001) do grupo e da interação tempo x grupo em todas as variáveis analisadas em ambos os sexos. Foi observadas reduções na %G (média das diferenças = -5,58%) e no perímetro da cintura (-2,33cm), aumento da MM (+2,05kg) no GE em ambos os sexos, o contrário foi observado no GC.
A prática de atividade física programada promove redução significativa de gordura corporal em escolares pós-púberes. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-News-1 ObjectType-Feature-3 content type line 23 |
ISSN: | 0021-7557 1678-4782 1678-4782 |
DOI: | 10.1016/j.jped.2014.06.004 |