O esporte e suas implicações na saúde óssea de atletas adolescentes

Silva, Carla Cristiane da; Teixeira, Altamir Santos; Goldberg, Tamara Beres Lederer

doi:10.1590/s1517-86922003000600007

Cited by 27 publications

(36 citation statements)

References 26 publications

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“…Outra limitação presente no estudo foi a impossibilidade de controlar a regulação hormonal nos grupos avaliados, tendo em vista que a mesma é um fator que pode alterar o pico de massa óssea durante a prática desportiva (20) . Porém, como medida para atenuar essa limitação, participaram do estudo somente garotas dos mesmos estágios de maturação sexual (IV-V); também, não foi relatada pelas participantes a presença de qualquer distúrbio menstrual, aumentando a confiabilidade dos dados.…”

Section: Resultsunclassified

Influência do voleibol na densidade mineral ossea de adolescentes do sexo feminino

Mesquita

Fonseca

França

2008

Rev Bras Med Esporte

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RESUMOSabe-se que esportes com grandes cargas mecânicas e maior impacto do corpo com o solo resultam em maior massa óssea do que atividades em que o peso do corpo é pouco solicitado. Apesar de o voleibol estar entre os esportes considerados de alto impacto, existem poucos estudos que relacionam sua prática ao desenvolvimento da densidade mineral óssea (DMO). Portanto, o presente estudo teve como objetivo comparar a DMO entre garotas participantes de equipes de treinamento de voleibol e de garotas participantes de atividade física escolar. Foram avaliadas 60 voluntárias com idade entre 13 e 17 anos. Elas foram divididas em grupo voleibol (GV) -composto pelas praticantes de voleibol -e grupo controle (GC). Foram mensurados massa corporal, estatura, consumo de cálcio, DMO do corpo inteiro, da cabeça, do colo do fêmur e do triângulo de Wards e estágio de maturação sexual. Foi utilizado o teste t para amostras independentes, para comparar a diferença entre as médias dos dois grupos (p < 0,05). Os resultados mostraram que a DMO do corpo inteiro (1,174 ± 0,065), colo do fêmur (1,164 ± 0,096) e triangulo de Wards (1,111 ± 0,138) do GV é significativamente maior que a DMO do GC (corpo inteiro: 1,083 ± 0,082; colo do fêmur: 0,998 ± 0,142; triangulo de Wards: 0,944 ± 0,178). Porém, a DMO da cabeça não apresentou nenhuma diferença significativa entre os dois grupos. Portanto, a prática de voleibol apresenta-se como importante esporte para a aquisição de massa óssea durante o final da adolescência e a DMO da cabeça como um possível padrão interno de controle da amostra.Palavras-chave: massa óssea, esporte, adolescência. ABSTRACTSeveral studies have shown that high impact weight-bearing sports are more beneficial than non-weightbearing ones. Despite being considered a high impact sport, few studies relate it with bone mineral density (BMD) development. Therefore, the aim of this study was to compare BMD between female volleyball players and 60 volunteer girls aged 13-17-y who participated in this study. They were classified in Volleyball Group (VG) -who were practicing volleyball -and Control Group (CG). Body mass, height, calcium uptake, total body, head, femoral neck and Wards Triangle BMD and sexual maturation were measured. Differences between groups were analyzed by t-test for independent samples (p < 0.05). The VG was statistically higher in total body (1.174 ± 0.065), femoral neck (1.164 ± 0.096) and Wards triangle (1.111 ± 0.138) BMD than CG (total body: 1.083 ± 0.082; femoral neck: 0.998 ± 0.142; Wards triangle: 0.944 ± 0.178); however, head BMD was not different between groups. Therefore, volleyball practice is an important sport to promote bone mass acquisition during adolescence and head BMD became a possible internal standard for selection of bias control. Os fatores genéticos são os principais responsáveis pela variação da massa óssea, pois estudos realizados com pares de pais e filhos (2) e com gêmeos (5) demonstraram que a hereditariedade é responsável por variação de 60 a 80% na determinação da massa óssea. A...

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Section: Resultsunclassified

Influência do voleibol na densidade mineral ossea de adolescentes do sexo feminino

Mesquita

Fonseca

França

2008

Rev Bras Med Esporte

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“…From a preventive point-of-view, physical inactivity in the early years of life has been associated as being harmful to health in adulthood, a crucial period of life for the development of several non-communicable diseases 9,11 . Childhood and adolescence are stages of the human development during which the bone mass is determined and, therefore, sports participation during these periods could improve bone mass accrual and, hence, prevent osteoporosis in adulthood 12,13 . In addition, scientific literature indicates that children and adolescents that are physically active tend to remain active throughout adulthood 14,15 .…”

Section: Introductionmentioning

confidence: 99%

Physical activity during the early years of life and osteoporosis in adulthood: study among users of the Brazilian National Health System

Turi

Codogno

Lynch

et al. 2016

Motriz: rev. educ. fis.

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-The objectives of this study were to analyze the association between osteoporosis and current/early physical activity and also to identify whether early sport participation, osteoporosis, age and sex are somehow connected. The study sample included 963 participants. Osteoporosis was diagnosed through medical records. Physical activity in current and the early years of life, age, sex and economic condition were assessed through questionnaires. Abdominal obesity was identified by waist circumference. Results showed that osteoporosis was associated with female sex and higher age. Participants that were active in adulthood had 47% lower chance of osteoporosis (odds ration [OR] = 0.53[0.30-0.93]). Adults that were active in childhood and adolescence had a lower chance of osteoporosis only in the crude model (OR = 0.38[0.22-0.64]). Women that were inactive in their youth were almost five times more likely to have osteoporosis when compared to men under the same conditions (OR = 4.80[2.46-9.37]). A lack of sports participation in the early years of life seems to be associated with osteoporosis, age and sex.

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“…Moreover, the search for a physical appearance model set by the media also makes adolescents look for physical and/or sports activities with high intensity and training volume 2 . Due to the dominance of cerebral impulses and lower sensation to movement exertion, children present higher motor activity than adults 3 , besides higher baseline metabolism mediated by the intensive growth and differentiation processes 4 , increasing the need for vitamins, minerals and nutrients, especially proteins 5 .…”

Section: Introductionmentioning

confidence: 99%

Efeito do treinamento físico sobre o perfil metabólico e ósseo de ratos recém-desmamados

Arantes¹,

Bertolini²,

Leme³

et al. 2013

Rev Bras Med Esporte

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Introduction: The practice of moderate-intensity exercise can reduce the risk of infections and improve metabolic aspects of the person. Objective: To investigate the effects of aerobic physical training on endocrine and metabolic aspects, bone and immune systems. Methods: Twenty Wistar rats were divided in two groups: sedentary (SG) and trained group (TG). Training program consisted in swimming, 6 weeks, supporting a workload corresponding to 5% of body weight. At the end of the experiment, were performed counting total and differential leukocyte count and hematocrit. After training period, were analyzed glucose, total protein, triglycerides, cholesterol, liver and muscle samples for the determination of the levels of glycogen, and determination of the tibia length and bone area. All dependent variables were analyzed by one-way analysis of variance (ANOVA) and a significance level of P < 0.05 was used for all comparisons. Results: Hematocrit (%) analyzed showed a significant difference, with higher values for TG (54.63 ± 1.41) than for the SG (49.5 ± 1.65). The total leukocyte count was not significantly different, as there was no difference in the differential count. Total cholesterol showed significant decrease in TG (TG = 68.27 ± 13.71 mg/dL; SG = 94.44 ± 28.09), the total protein levels also showed significant reduction (TG = 7.3 ± 0.40 g/dL; SG = 7.74 ± 0.36 g/dL) glucose levels and triglyceride showed no significant differences. The bone length showed significant difference (TG = 40±0.14 mm; SG = 42.10 ± 0.12mm). Tibial area showed a lower value for TG (1.53 ± 0.12cm²) than for SG (1.67 ± 0.18cm²); however, the difference was not statistically significant. Conclusion: It can be concluded that aerobic exercise training is able to produce some unique physiological changes in young rats. There is also the need to prescribe exercises that meet the particular maturational stage of development.

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O esporte e suas implicações na saúde óssea de atletas adolescentes

Cited by 27 publications

References 26 publications

Influência do voleibol na densidade mineral ossea de adolescentes do sexo feminino

Influência do voleibol na densidade mineral ossea de adolescentes do sexo feminino

Physical activity during the early years of life and osteoporosis in adulthood: study among users of the Brazilian National Health System

Efeito do treinamento físico sobre o perfil metabólico e ósseo de ratos recém-desmamados

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