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- 저자 : Maillane-Vanegas (검색결과 3 건)
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Isabella Neto Exupério,Ricardo Ribeiro Agostinete,André Oliveira Werneck,Santiago Maillane-Vanegas,Rafael Luiz-de-Marco,Eduardo D.L. Mesquita,Han C.G. Kemper,Rômulo Araújo Fernandes 대한골대사학회 2019 대한골대사학회지 Vol.26 No.2
Background: To compare bone density accrual and markers of bone geometry and formation between female adolescents engaged and not engaged in artistic gymnastics (AGs). Methods: This was a 12-month longitudinal study involving 20 female adolescents, including 10 controls and 10 gymnasts (AGs) aged 11 to 16 years. At baseline, the gymnasts had a minimum of 12 months of practice, and the controls reported no participation in any organized sport. Bone mineral density (BMD) was measured in the lower limbs, upper limbs, spine, and whole body. In addition, BMD and geometrical properties of the femur were assessed. As a bone formation marker, osteocalcin level was measured. Results: Femoral aspects were increased in the gymnasts by 19% (P=0.009), 14% (P=0.047), and 10% (P=0.046) in the Ward’s triangle, trochanter, and the overall bone, respectively, than in the control girls. Geometrical parameters, bone accrual, and osteocalcin levels were similar in both groups. The weekly training load explained 30.8% of all bone gains on the lower limbs and affected the density on parts of the femur. Conclusions: The gymnasts, after a 12-month follow-up, demonstrated a higher BMD in the Ward’s triangle and whole femur than the controls, as well as an improvement in femur density. These changes were mainly due to the weekly training load. Lastly, the gymnasts had significant bone accrual (after 12 months) in the upper limbs, lower limbs, and whole body.
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Prolonged Practice of Swimming Is Negatively Related to Bone Mineral Density Gains in Adolescents
Marcelo R. Ribeiro-dos-Santos,Kyle R. Lynch,Ricardo R. Agostinete,Santiago Maillane-Vanegas,Bruna Turi-Lynch,Igor H. Ito,Rafael Luiz-de-Marco,Mario A. Rodrigues-Junior,Rômulo A. Fernandes 대한골대사학회 2016 대한골대사학회지 Vol.23 No.3
Background: The practice of swimming in “hypogravity” conditions has potential to decrease bone formation because it decreases the time engaged in weight-bearing activities usually observed in the daily activities of adolescents. Therefore, adolescents competing in national levels would be more exposed to these deleterious effects, because they are engaged in long routines of training during most part of the year. To analyze the effect of swimming on bone mineral density (BMD) gain among adolescents engaged in national level competitions during a 9-month period. Methods: Fifty-five adolescents; the control group contained 29 adolescents and the swimming group was composed of 26 athletes. During the cohort study, BMD, body fat (BF) and fat free mass (FFM) were assessed using a dual-energy x-ray absorptiometry scanner. Body weight was measured with an electronic scale, and height was assessed using a stadiometer. Results: During the follow-up, swimmers presented higher gains in FFM (Control 2.35 kg vs. Swimming 5.14 kg; large effect size [eta-squared (ES-r)=0.168]) and BMD-Spine (Swimming 0.087 g/cm2 vs. Control 0.049 g/cm2 ; large effect size [ES-r=0.167]) compared to control group. Male swimmers gained more FFM (Male 10.63% vs. Female 3.39%) and BMD- Spine (Male 8.47% vs. Female 4.32%) than females. Longer participation in swimming negatively affected gains in upper limbs among males (r=-0.438 [-0.693 to -0.085]), and in spine among females (r=-0.651 [-0.908 to -0.036]). Conclusions: Over a 9-month follow-up, BMD and FFM gains were more evident in male swimmers, while longer engagement in swimming negatively affected BMD gains, independently of sex.
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Track and Field Practice and Bone Outcomes among Adolescents: A Pilot Study (ABCD-Growth Study)
Yuri da Silva Ventura Faustino-da-Silva,Ricardo Ribeiro Agostinete,André Oliveira Werneck,Santiago Maillane-Vanegas,Kyle Robinson Lynch,Isabella Neto Exupério,Igor Hideki Ito,Romulo Araújo Fernandes 대한골대사학회 2018 대한골대사학회지 Vol.25 No.1
Background: Osteoporosis is considered a public health problem with high worldwide prevalence. One approach to prevention is through the promotion of physical activity, especially exercise, during adolescence. Methods: This study compared bone variables in different body segments in adolescents according to participation in track and field. The study included 34 adolescents (22 boys), of whom 17 were track and field athletes and 17 were control subjects. Bone mineral density (BMD, g/cm2) and bone mineral content (BMC, g) were analyzed using dual energy X-ray absorptiometry (total body stratified by body segments). Peak height velocity was used to estimate somatic maturation. Results: Athletes had higher BMD (P=0.003) and BMC (P=0.011) values in the lower limbs and higher whole body BMD (P=0.025) than the control group. However, when adjusted for confounding factors, the difference was not maintained. The groups had similar lean soft tissue values (P=0.094). Training overload was positively correlated with BMD in the upper limbs (r=0.504; 95% confidence interval, 0.031-0.793). Although track and field athletes had higher BMD and BMC values in the lower limbs, these differences were not significant when adjusted for confounding factors. Conclusions: Track and field participation in adolescence appears to influence BMD and BMC in lower limbs, and fat-free mass seems to mediate this effect. Also, higher training loads were found to be positive for bone health in upper limbs.
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