This study investigated the effects of maturity status on knee extensor torque and vastus lateralis architecture of young soccer players. Thirty-four males aged 13-18 years were divided into two groups: pubescent (PUB, n = 15) and postpubescent (POSP, n = 19). Torque by angle interaction was established for absolute [F(2.649, 84.771) = 9.066, p < 0.05] and relative to body mass [F(2.704, 86.533) = 4.050, p < 0.05] isometric torque with the POSP group showing greater values. Muscle volume torque-angle relationship was similar between groups. Absolute, relative to body mass, and relative to muscle volume concentric and eccentric torque-velocity relationship showed a nonsignificant interaction but a significant group effect in favour the POSP group for absolute and concentric torque relative to body mass. Torque-angle and torque-velocity relationship normalized by body mass allometric exponents showed a non-significant interactions and group effects. Muscle thickness (3.6 ± 0.6 vs. 3.8 ± 0.6 cm), fascicle length (8.3 ± 1.4 vs. 8.9 ± 1.6 cm) and pennation angle (15.0 ± 2.3 vs. 14.3 ± 3.2 degrees) was similar between PUB and POSP groups, respectively. Maturity status did not show a significant effect on muscle architecture and on isometric and dynamic torques when allometrically normalized.

No abstract

RESUMOObjetivo: Avaliar a influência da intervenção fisioterapêutica na qualidade de vida e na evolução clínico funcional de mulheres submetidas ao tratamento do câncer de mama. Materiais e Métodos: Estudo quase-experimental do tipo antes e depois, composto por treinamento de força e flexibilidade, em 10 mulheres submetidas a tratamentos cirúrgico e adjuvante, com duração de oito semanas. Para avaliação da qualidade de vida utilizou-se o questionário WHOQOL-bref. A avaliação clínico funcional foi composta por avaliação: da amplitude de movimento (ADM) de ombro mensurada por meio de goniometria; da força muscular de flexão, extensão e abdução de ombro avaliada com uma repetição máxima; da dor ao repouso e ao movimento; da sensibilidade; e de edema através da perimetria. Resultados: Não houve variação percentual nas respostas do questionário de qualidade de vida. Na avaliação inicial, as pacientes tinham força muscular e ADM menor no membro superior homolateral à cirurgia e ao final não foi encontrada essa diferença, ocorrendo ganho de força e ADM em ambos os membros. No teste de sensibilidade foi relatado paresia na região cirúrgica e não houve melhora. Após o tratamento houve diminuição de 40% no relato dor forte ao movimentar o braço e na avaliação da dor ao repouso inicialmente 50% referiram dor forte e, após, todas dor fraca. Não houve formação de linfedema. Conclusão: A aplicação do protocolo de exercícios auxiliou na melhora dos parâmetros clínicos funcionais, exceto a paresia, e não ocorreu declínio da qualidade de vida. Palavras

No abstract

Introduction: High levels of physical fitness established in childhood and adolescence have been associated with positive effects on cardiometabolic risk factors (CMRF), persisting into adulthood. Conversely, high rates of a sedentary lifestyle, overweight, and obesity in this period have been considered a public health problem, because these conditions tend to worsen in adulthood, increasing the incidence of chronic diseases, deterioration of CMRF, and consequently increasing comorbidities and mortality. Objective: To verify the effect of cardiorespiratory fitness (CRF) and body mass index (BMI) on CMRF in children and adolescents. Methods: The sample was composed of 49 schoolchildren of both sexes aged 10-17 years. Anthropometric assessments, CRF test, muscle strength test, and blood pressure (BP) measurement were performed. Participants were allocated into groups according to BMI (eutrophic, overweight, obese) and CRF (low-fit, normal-fit, and high-fit) levels. Results: Obese individuals had lower CRF values compared to eutrophic and overweight groups. The cardiometabolic risk (CMRP) was significantly higher in the obese group when compared to the normal group, but without difference in relation to the overweight group. The Hight-fit group had lower CMRF values compared to the Low-fit group. Conclusions: Higher BMI and CRF values had negative and positive effects on CMRF and CMRP in schoolchildren, respectively. Overweight or obese schoolchildren with low fitness levels constitute an unfavorable cardiometabolic health risk profile.