RESUMO
The aim of this study was to investigate the effect of Hibiscus sabdariffa tea on energy expenditure, satiety response and food intake. This is an open-label, crossover, randomized clinical trial that comprised 21 subjects (11 women, 10 men). The individuals were evaluated at acute moments (fasting and after eating standardized breakfast accompanied by water or H. sabdariffa tea). Resting energy expenditure was measured by indirect calorimetry, subjective satiety responses were evaluated with a visual analogue scale and food intake was assessed by using food records. The volunteers who drank the H. sabdariffa tea had lower perception of hunger (p = 0.002) and greater feeling of satiety (p = 0.01) and fullness (p = 0.009) compared to control. Men who ingested the H. sabdariffa tea had an increase in nitrogen energy expenditure (water: 1501 ± 290.7 kcal, H. sabdariffa tea: 1619 ± 288.9 kcal; p = 0.029). In comparison to control, men presented less perception of hunger (p = 0.003) and desire to eat (p = 0.016), increased satiety (p = 0.021) and fullness (p = 0.01), and women oxidized more fat (p = 0.034) when they drank H. sabdariffa tea. There was no difference between treatments regarding the energy and macronutrient intake from the first meal and throughout the day (p > 0.05) for all participants. The H. sabdariffa tea only affected energy expenditure and satiety responses in men. Clinical trial registry: ReBEC Platform of the Brazilian Clinical Trials Registry (https://ensaiosclinicos.gov.br/) - RBR-5HZ86T. Novelty: H. sabdariffa tea promoted an increase in energy expenditure and caused less perception of hunger/desire to eat in men. H. sabdariffa tea intake increased postprandial fat oxidation in women.
Assuntos
Hibiscus , Resposta de Saciedade , Estudos Cross-Over , Ingestão de Energia , Feminino , Hibiscus/química , Humanos , Masculino , Refeições , Chá , TermogêneseRESUMO
Falar de emergência significa que houve algo inesperado e contingente que obrigou todo o mundo a responder à questão: e agora, o que fazer? Mas na resposta, isto é, no modo de tratarou de lidar com isso que aconteceu,não há apenas um fazer mas também um ou vários dizeres; daí que importe interrogar o que é este dizer, esta língua que usamos, é abusada ou nos abusa, conforme o caso, mas que por vezes implica igualmente uma certa torção que importa não perder de vista na prática analítica, pois é ela, porventura, a bússola que nos orienta
Parler d'urgence signifie qu'il s'est passé quelque chose d'inattendu et de contingent qui a obligé tout le monde à répondre à la question : et maintenant, que faire ? Mais dans la réponse, c'est-à-dire dans la façon dont nous traitons ou nous occupons de ce qui s'est passé, il n'y a pas seulement une chose à faire, mais aussi une ou plusieurs choses à dire; c'est pourquoi il est important dese demander ce qu'est ce dicton, ce langage que nous utilisons, qui est malmené ou qui nous abuse, selon le cas, mais qui implique aussi parfois une certaine torsion qu'il est important de ne pas perdre de vue dans la pratique analytique, car c'est peut-être la boussole qui nous guide
Speaking of emergency means that there was something unexpected and contingent that forced everyone to answer the following question: what are we to do now? But in the answer to this question, in the way we address or deal with what has happened, there are not only things to do, but also one or more things to say; that is why it is important to ask what this saying is, this language that we use, abuse or abuses us, as the case may be, but italso sometimes implies a certain twist that we must not lose sight of in analytical practice, since it might be the compass that guides us
Assuntos
Psicanálise , Teoria Psicanalítica , Terapêutica , Emergências , IdiomaRESUMO
The aim of this study was to compare the effects of 2 different exercise intensities on postprandial lipemia, oxidative stress markers, and endothelial function after a high-fat meal (HFM). Eleven young men completed 2-day trials in 3 conditions: rest, moderate-intensity exercise (MI-Exercise) and heavy-intensity exercise (HI-Exercise). Subjects performed an exercise bout or no exercise (Rest) on the evening of day 1. On the morning of day 2, an HFM was provided. Blood was sampled at fasting (0 h) and every hour from 1 to 5 h during the postprandial period for triacylglycerol (TAG), thiobarbituric acid reactive substance (TBARS), and nitrite/nitrate (NOx) concentrations. Flow-mediated dilatation (FMD) was also analyzed. TAG concentrations were reduced in exercise conditions compared with Rest during the postprandial period (P < 0.004). TAG incremental area under the curve (iAUC) was smaller after HI-Exercise compared with Rest (P = 0.012). TBARS concentrations were reduced in MI-Exercise compared with Rest (P < 0.041). FMD was higher in exercise conditions than Rest at 0 h (P < 0.02) and NOx concentrations were enhanced in MI-Exercise compared with Rest at 0 h (P < 0.01). These results suggest that acute exercise can reduce lipemia after an HFM. However, HI-Exercise showed to be more effective in reducing iAUC TAG, which might suggest higher protection against postprandial TAG enhancement. Conversely, MI-Exercise can be beneficial to attenuate the susceptibility of oxidative damage induced by an HFM and to increase endothelial function in the fasted state compared with Rest.