The impact of different types of physical activity on total and regional bone mineral density in young Brazilian athletes

Autor(es)

Silva, Carla C. ^[1] ; Goldberg, Tamara B. L. ^[2] ; Teixeira, Altamir S. ; Dalmas, Jose C. ^[3]

Afiliação do(s) autor(es)

^[1] Univ N Parana UENP, Jacarezinho - Brazil

^[2] Sao Paulo State Univ UNESP, Dept Pediat, Fac Med Botucatu, BR-18607918 Botucatu, SP - Brazil

^[3] State Univ Londrina UEL, Londrina - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF SPORTS SCIENCES; v. 29, n. 3, p. 227-234, 2011.
• Citações Web of Science: 25
• Assunto(s): Adolescentes Estresse mecânico Densidade óssea Exercício físico Corredores

Resumo

Bone turnover is affected by exercise throughout the lifespan, especially during childhood and adolescence. The objective of this study was to investigate the impact of different sports on total and regional bone mineral density in male Brazilian adolescent athletes. Forty-six adolescents aged 10-18 years participated in the study: 12 swimmers, 10 tennis players, 10soccer players, and 14 sedentary individuals. The athletes had engaged in physical activities for more than 10h per week in the previous 6 months. Bone mineral density of the lumbar spine (L1-L4), left proximal femur region, and whole body was evaluated by dual-energy X-ray absorptiometry. Results showed higher mean values in the proximal femur region of tennis and soccer players (1.02 +/- 0.18; 0.96 +/- 0.16, respectively) than swimmers and controls (0.91 +/- 0.14 and 0.87 +/- 0.06, respectively) (P0.05). In relation to the impact of sporting activities based on bone age determination, we observed significant differences in bone mineral density at all evaluated sites at the end of puberty (16-18 years) compared with 10-12 years, with increases of 78% in the lumbar spine, 47% in the proximal femur, and 38% in the whole body. (AU)

• Processo FAPESP: 07/07731-0 - Densidade e conteúdo mineral ósseo de adolescentes saudáveis do sexo feminino na faixa etária de 10 a 20 anos e suas relações com marcadores ósseos de formação e reabsorção
• Beneficiário: Tamara Beres Lederer Goldberg
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 04/07007-1 - Marcadores bioquímicos de remodelação óssea e densidade mineral óssea em adolescentes atletas vinculados a várias modalidades esportivas
• Beneficiário: Tamara Beres Lederer Goldberg
• Modalidade de apoio: Auxílio à Pesquisa - Regular