Hypoglycaemic effect of resveratrol in streptozotocin-induced diabetic rats is impaired when supplemented in association with leucine.

Studies have shown synergistic and independent effects of leucine and resveratrol (RSV) as possible therapeutic agents to ameliorate metabolic disorders. Thus, the objective of this study was to investigate the effects of supplementation with leucine and RSV, alone and in combination, on metabolic changes in white adipose tissue of neonatally STZ-induced diabetic rats. After weaning, the rats were treated with trans-resveratrol (0.6 mg/kg/dose) and/or leucine (1.35 mg/kg/dose) administered orally. The animals were euthanized at age 16 weeks for blood analyses. Subcutaneous (SC), periepididymal (PE) and retroperitoneal (RP) fat pads were weighed. Adipocytes from PE and RP pads were isolated for morphometric analysis. Long-term supplementation with RSV promoted adiposity recovery, prevented hypoinsulinemia and improved the metabolic profile of the diabetic rats. However, some of these effects were impaired when RSV was associated with leucine. The diabetic rats supplemented with leucine alone showed no significant improvement in metabolic disorders.

Surfe é estilo de vida: motivação para a prática em mulheres jovens / Surf is lifestyle: motivation to practice in young women

Com a popularização cada vez mais notória do surfe, a procura pela modalidade aumentou abruptamente e o esporte ganhou os mais diversos adeptos. As mulheres vem mostrando interesse pela modalidade e é cada vez mais frequente a presença das mesmas no ambiente do surfe. O objetivo do presente estudo foi analisar os aspectos motivacionais envolvidos com a aderência e permanência a prática de surfe em mulheres jovens. A pesquisa foi feita com 20 mulheres que iniciaram ou realizam a prática através de serviços oferecidos por escolinhas de surfe, por no mínimo seis meses. Para a análise dos dados, foi utilizado o questionário "Inventário de Motivação à Prática Regular de Atividade Física" - IMPRAF-54 e um questionário estruturado, elaborado pelos autores, com questões sobre características motivacionais específicas da modalidade surfe. Os resultados da pesquisa mostram que o prazer, o bem estar e a qualidade de vida são os principais fatores para a aderência e permanência no esporte. Observa-se que a competitividade foi à dimensão motivacional menos citada no estudo. Podemos concluir que a procura pelo surfe se dá pela felicidade, liberdade e bem estar que a prática dessa modalidade acarreta para os praticantes.

With the increasingly notorious popularization of surfing, the demand for sport increased sharply and the sport has gained the most diverse practitioners. Women has been showing interest in sport and is increasingly frequent presence in surf environment. The aim of this study was to analyze the motivational aspects involved with begin and stay the practice of surfing in young women. The survey was conducted with 20 women who start or perform the practice through services offered by surf schools for at least six months. For data analysis, we used the questionnaire "Inventory Motivation to Regular Physical Activity" - IMPRAF-54 and a structured questionnaire developed by the authors, with questions about specific motivational characteristics of surfing mode. The survey results show that pleasure, well-being and quality of life are the main factors for grip and stay in the sport. It is observed that competitiveness was the motivational dimension less cited in the study. We can conclude that demand for surfing is by happiness, freedom and well-being that practice this modality entails for practitioners.