Impact of Martial Arts (Judo, Karate, and Kung Fu) on Bone Mineral Density Gains in Adolescents of Both Genders: 9-Month Follow-Up

Autor(es)

Ito, Igor H. ^[1] ; Kemper, Han C. G. ^[2] ; Agostinete, Ricardo R. ^{[3, 1]} ; Lynch, Kyle R. ^[4] ; Christofaro, Diego G. D. ^{[3, 4]} ; Ronque, Enio R. ^[5] ; Fernandes, Romulo A. ^{[3, 4]}

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Dept Phys Educ, Lab InVest Exercise LIVE, Presidente Prudente, SP - Brazil

^[2] Vrije Univ Amsterdam Med Ctr, EMGO Inst Hlth & Care Res, Dept Occupat Hlth, Amsterdam - Netherlands

^[3] Sao Paulo State Univ UNESP, Dept Phys Therapy, Postgard Program Phys Therapy, Presidente Prudente, SP - Brazil

^[4] Sao Paulo State Univ UNESP, Inst Biosci, Postgrad Program Kinesiol, Rio Claro, SP - Brazil

^[5] Londrina State Univ UEL, Ctr Phys Educ & Sports, Postgrad Program Phys Educ, Londrina, Parana - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PEDIATRIC EXERCISE SCIENCE; v. 29, n. 4, SI, p. 496-503, NOV 2017.
• Citações Web of Science: 4

Resumo

Purpose: To compare bone mineral density (BMD) gains in adolescents of both genders stratified according to different martial art styles in a 9-month follow-up study. Methods: The longitudinal study consisted of 29 adolescents of both genders and age between 11 and 17 years stratified into a control group (not engaged in any sport) and 50 fighters (kung fu/karate, n = 29; judo, n = 21). All 79 subjects underwent anthropometric measures (weight, height, leg length, and height set) and dual-energy X-ray absorptiometry (BMD, in g/cm(2)) at 2 moments, baseline and 9 months later. Maturity offset (age at peak height velocity), lean soft tissue, chronological age, and resistance training were treated as covariates. Results: Male judoists presented higher gains in BMD-spine {[}0.098 g/cm(2) (95% confidence interval, 0.068-0.128)] than control group {[}0.040 g/cm(2) (95% confidence interval, 0.011-0.069)] (post hoc test with P = .030). There was no effect of martial art on BMD gains among girls. Independently of gender, in all multivariate models, lean soft tissue constituted the most relevant covariate. Conclusions: Judo practice in adolescents affected the bone accrual significantly after 9-month follow-up compared with controls, mainly in boys. (AU)

• Processo FAPESP: 13/06963-5 - Prática de diferentes modalidades esportivas e a aquisição de massa óssea em adolescentes: coorte de 09 meses
• Beneficiário: Ricardo Ribeiro Agostinete
• Linha de fomento: Bolsas no Brasil - Iniciação Científica