Browsing by Issue Date, starting with "2013-12-04"
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- Body composition and body fat distribution are related to cardiac autonomic control in non-alcoholic fatty liver disease patientsPublication . Pimenta, Nuno; Santa-Clara, Helena; Cortez-Pinto, Helena; Silva-Nunes, José; Rosado, Maria da Lapa; Sousa, Pedro J.; Calé, Rita; Melo, Xavier; Sardinha, Luís B.; Fernhall, BoBACKGROUND/OBJECTIVES: Heart rate recovery (HRR), a cardiac autonomic control marker, was shown to be related to body composition (BC), yet this was not tested in non-alcoholic fatty liver disease (NAFLD) patients. The aim of this study was to determine if, and to what extent, markers of BC and body fat (BF) distribution are related to cardiac autonomic control in NAFLD patients. SUBJECTS/METHODS: BC was assessed with dual-energy X-ray absorptiometry in 28 NAFLD patients (19 men, 51±13 years, and 9 women, 47±13 years). BF depots ratios were calculated to assess BF distribution. Subjects’ HRR was recorded 1 (HRR1) and 2 min (HRR2) immediately after a maximum graded exercise test. RESULTS: BC and BF distribution were related to HRR; particularly weight, trunk BF and trunk BF-to-appendicular BF ratio showed a negative relation with HRR1 (r 1⁄4 0.613, r 1⁄4 0.597 and r 1⁄4 0.547, respectively, Po0.01) and HRR2 (r 1⁄4 0.484, r 1⁄4 0.446, Po0.05, and r 1⁄4 0.590, Po0.01, respectively). Age seems to be related to both HRR1 and HRR2 except when controlled for BF distribution. The preferred model in multiple regression should include trunk BF-to-appendicular BF ratio and BF to predict HRR1 (r2 1⁄4 0.549; Po0.05), and trunk BF-to-appendicular BF ratio alone to predict HRR2 (r2 1⁄4 0.430; Po0.001). CONCLUSIONS: BC and BF distribution were related to HRR in NAFLD patients. Trunk BF-to-appendicular BF ratio was the best independent predictor of HRR and therefore may be best related to cardiovascular increased risk, and possibly act as a mediator in age-related cardiac autonomic control variation.
- A interação e cooperação entre pares: uma prática em contexto de crechePublication . Arezes, Marta Lopes; Colaço, SusanaO presente relatório evidencia as experiências e aprendizagens desenvolvidas no âmbito da prática pedagógica, espelhando o caminho percorrido pelos diferentes contextos de estágio, nas valências de jardim de infância, 1º ciclo do ensino básico e creche. São relatadas as principais dificuldades e aprendizagens vividas, com uma postura crítica e reflexiva sobre a prática. Este relatório integra também uma componente investigativa cujos dados foram recolhidos em contexto de creche, num grupo multietário. Adotando uma metodologia de investigação-ação, o estudo realizado centrou-se na promoção da interação e cooperação entre pares, procurando compreender as potencialidades desta prática pedagógica, nomeadamente para o desenvolvimento das crianças. Os resultados obtidos revelaram evidências na melhoria do bem-estar e envolvimento das crianças, bem como no seu desenvolvimento, nomeadamente ao nível da linguagem e autonomia. Assim, esta estratégia poderá potencializar as vantagens dos grupos multietários e promover, consequentemente, o desenvolvimento das crianças.