Navegando por Palavras-chave "suplementação"

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    Consumo de suplementos por jovens freqüentadores de academias de ginástica em São Paulo
    (Sociedade Brasileira de Medicina do Exercício e do Esporte, 2008-12-01) Hirschbruch, Marcia Daskal [UNIFESP]; Fisberg, Mauro [UNIFESP]; Mochizuki, Luis; Recomendo - Assessoria em Nutrição e Qualidade de Vida; Universidade Federal de São Paulo (UNIFESP); Universidade de São Paulo (USP)
    The concern with physical appearance and aesthetics in fitness centers can lead to an indiscriminate use of supplements. A questionnaire was used to investigate factors relating to supplement use among 201 young users of fitness centers in the city of São Paulo, Brazil. Supplement use was reported by 61.2% (n = 23) of the sample. Men use more supplements than women (p < 0.001) and adolescents tend to use them more than young adults (p = 0.07). The supplements most used by this group are sports drinks (12%); high-calorie gainers (12%), amino acids (10%), proteins (10%) and creatine (8%). The supplements are taken trough own initiative (42.8%) and trainers' recommendation (27.5%). Those who have been exercising for a longer time, go more often to the fitness centers, and devote more time to exercise/week are significantly more involved in supplement use. The presence of user friends (p = 0.03) and/or a user at home (p = 0.01) also influences on the use of supplements. Supplement use is a widespread, common practice at fitness centers, whose environment favors their use.
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    A suplementação de glutamina é benéfica em crianças com doenças graves?
    (Pontifícia Universidade Católica de Campinas, 2005-02-01) Pacífico, Stefânia Lucizani; Leite, Heitor Pons; Carvalho, Werther Brunow de [UNIFESP]; Hospital do Servidor Público Estadual Unidade de Terapia Intensiva; Universidade Federal de São Paulo (UNIFESP)
    Although there have been several randomized trials, conducted with critically ill adults, reporting the benefits of glutamine supplementation, there is scarce information on the role of glutamine in the treatment outcome of critically ill children. Our objective was to evaluate existing studies on the effect of glutamine supplementation, aiming at verifying the clinical benefits of such supplementation for critically ill children. A computerized search was conducted to select prospective, randomized, clinical trials of critically ill children, published between 1992 and 2003. Studies were included if, besides presenting the characteristics already mentioned, they evaluated the effects of parenteral and the enteral glutamine supplementing vs. those of standard care. The variables on clinical outcomes were: time to achieve full enteral nutrition, hospital length of stay, complication rates, and mortality. Three bibliographic databases were searched: Medline, LILACS and Cochrane Library. Search terms included: glutamine, critically ill, trauma, sepsis, burned, injured, bone marrow transplantation, intensive care, and mechanic ventilation. Initial screening resulted in 33 original articles; of these potentially eligible articles, only 7 fulfilled the inclusion criteria. Length of hospital stay, mortality rate, and hospital costs were not different for patients receiving glutamine-supplemented nutrition, when compared to those receiving non-supplemented diet. Glutamine was associated with reduction in the time necessary to achieve full enteral feeding and parenteral nutrition. There is no evidence to support the routine use of either parenteral or enteral glutamine supplement when treating critically ill children. The small number of patients, heterogeneity with respect to the studied groups, routes of administration, and confounding effects of concomitant diseases, all limit the inferences we can make from the results.
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    A suplementação de L-carnitina não promove alterações na taxa metabólica de repouso e na utilização dos substratos energéticos em indivíduos ativos
    (Sociedade Brasileira de Endocrinologia e Metabologia, 2010-02-01) Coelho, Christianne De Faria; Mota, João Felipe [UNIFESP]; Ravagnani, Fabrício César De Paula; Burini, Roberto Carlos; Universidade de São Paulo (USP); Universidade para o Desenvolvimento do Estado e da Região do Pantanal; Universidade Federal de São Paulo (UNIFESP); Universidade São Francisco Departamento de Nutrição; Universidade Federal do Mato Grosso do Sul; Universidade Católica Dom Bosco; Universidade Estadual Paulista (UNESP)
    PURPOSE: To investigate the effects of L-carnitine supplementation, over thirty days, on the resting metabolic rate (RMR) and oxidation of free fatty acids (FFA) under rested or exercised conditions. SUBJECTS AND METHODS: Twenty-one overweight active volunteers (40 to 58 years old) were randomized into two groups: supplemented (GS; N = 11; 1,8 g/day of L-carnitine) or placebo (GP; N = 10; maltodextrin). Caloric intake, anthropometry, RMR, VO2max, respiratory exchange ratio and plasma FFA were measured. RESULTS: No significant changes were found in the caloric intake (-244,66 vs. -126,00 kcal/day), body composition (-0.07 vs. -0.17 kg/m²), RMR (0.06 vs. -0.02 kcal/day), respiratory exchange ratio at rest (3.69 vs. -1.01) and exercise (0.01 vs. -0.01) or VO2max (0.50 vs. 1.25 mL/kg/min) between GS and GP. Plasma FFA levels were increased under resting conditions only in the GP group (0.27), but no significant changes were observed before or after physical activity in any of the groups. CONCLUSION: Supplementation with L-carnitine caused no changes in the variables analyzed in this study.