AptidÃo fÃsica relacionada à saÃde e densidade mineral Ãssea em adolescentes

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The aim of this study was to investigate the relationship between physical fitness related to health (PFRH) and bone mineral density (BMD) in adolescents. 144 adolescents (65-boys and 79-girls) aged 15-18 years and IV-V Tannerâs stages were evaluated. Run/walk one mile, curl-ups, push-ups, sit and reach, body weight, height and BMI were measured. BMD in total body, lumbar spine, proximal femur (femoral neck and total hip), lean body mass and body fat were measured with dual energy X-ray absorptiometry (Lunar DPX-IQ). Pearsonâs correlation and stepwise multiple regression analysis were used (p≤0,05). Body weight and lean body mass are the factors that correlated most consistently with BMD of all sites for both sex and beyond these; abdominal muscular fitness and BMI had also presented a consistency in male. Abdominal muscular fitness and lean body mass could explain a variability from 18-43% to BMD of male while body weight, lean body mass and abdominal and upper body muscular fitness could explain 15-28% for female. The data suggest that muscular contraction and lean body mass contribute more than high-impact supported by skeleton for BMD of males adolescents and simultaneous increase of high-impact supported by skeleton and muscular fitness and lean body mass can be more beneficial for BMD of female.

ASSUNTO(S)

educacao fisica aptidÃo fÃsica relacionada à saÃde bone mineral density densidade mineral Ãssea aptidÃo fÃsica; educaÃÃo fÃsica; adolescentes saÃde - qualidade de vida physical fitness related to health adolescentes adolescents

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