CI - DGS - Artigos Científicos
Permanent URI for this collection
Browse
Browsing CI - DGS - Artigos Científicos by Subject "Alimentação"
Now showing 1 - 6 of 6
Results Per Page
Sort Options
- Association between sodium excretion and hydration status by Free Water Reserve: a cross-sectional analysis in adolescentsPublication . Gonçalves, Carla; Abreu, Sandra; Padrão, Patrícia; Pinho, Olívia; Graça, Pedro; Breda, João; Santos, Rute; Moreira, PedroBackground: Excessive sodium intake is excreted through urine and could affect hydration status. This study aims to describe hydration status in adolescents and to assess the association between hydration status by free water reserve (FWR) and urinary sodium excretion. Methods: Two hundred participants (118 girls), aged 13–18 years completed the study. Median urinary sodium excretion was measured in one 24-hour collection and was used as a proxy for sodium intake. FWR (measured urine volume minus the obligatory urine volume) was used for characterization of hydration status, and linear regression models were used to evaluate the association between urinary sodium excretion and FWR, adjusted for water and energy intake in boys and carbohydrate, fiber, and water intake in girls. Results: The participants median urinary sodium excretion was 3645.5 mg/d for boys and 2702.5 mg/d for girls (p < 0.001). Median FWR was positive in both sex groups; however, 40.2 % of boys and 31.4 % of girls (p = 0.195) were at risk of hypo-hydration status. Linear regression models showed that urinary sodium excretion was a significant predictor of FWR for both sexes (Crude Model β = 0.114, p = 0.003 for boys and β = 0.160, p < 0.001 for girls; Adjusted Model β = 0.120, p = 0.002 for boys and β = 0.142, p < 0.001 for girls). Conclusions: Nearly one third of subjects were at risk of hypo-hydration. Higher sodium excretion was associated with a better hydration status obtained by FWR. However, as the majority of subjects consume sodium above recommendations, preventive measures to promote better hydration status should focus in increasing the level of total water intake.
- Beverages intake and hydration status in adolescentsPublication . Gonçalves, C.; Padrão, P.; Abreu, S.; Graça, P.; Moreira, P.Introduction: Type and quantity of beverages intake among adolescents may influence their hydration status. Objective: To evaluate the association between hydration status assessed by Free Water Reserve (FWR) and consumption of 5 types of beverages (water, milk, soft drinks, fruit juices and hot beverages). Conclusions: In this sample of participants, euhydrated adolescents ingest more water and hot beverages than those at risk of hypo-hydration.
- Contributos para uma estratégia de promoção da alimentação saudável e sustentável em PortugalPublication . Graça, Pedro; Torres, DuartePretende-se neste breve texto, refletir sobre as estratégias adotadas nos últimos anos para assegurar um adequado estado nutricional das populações. São tidas em consideração as preocupações iniciais e as atuais para garantir uma produção alimentar sustentável e uma alimentação saudável num mundo com uma população em crescimento contínuo e com recursos naturais limitados. Entende-se neste texto como um dos objetivos de uma política alimentar e nutricional garantir a segurança alimentar das populações (food security), ou seja, “uma situação em que todas as pessoas, em qualquer momento, têm acesso físico, social e económico a alimentos suficientes, seguros e nutricionalmente adequados, que permitem satisfazer as suas necessidades nutricionais e as preferências alimentares para uma vida ativa e saudável”.
- Dia Mundial da Saúde 2015 : os alimentos seguros e a segurança alimentar no centro das atençõesPublication . Graça, PedroAs questões relacionadas com a alimentação e nutrição assumem atualmente um papel preponderante na sociedade à medida que o excesso de peso e doenças associadas (cardiovasculares, oncológicas, osteoarticulares, respiratórias, diabetes) coincidem pela primeira vez na história com a fome. Esta possibilidade da existência conjunta de insegurança alimentar e obesidade nas mesmas populações é um fenómeno novo e em crescimento acelerado, em particular quando as populações têm acesso a alimentos com elevado valor energético, baratos, acessíveis e de muito baixo valor nutricional.
- O ensino da comunicação na formação universitária em ciências da Nutrição: momento atual e sua evolução até aos dias de hojePublication . Graça, Pedro; Gregório, Maria João; Barros, Renata; Padrão, PatríciaO percurso da crescente integração das ciências da comunicação no ensino das Ciências da Nutrição reflete a importância de dotar os nutricionistas de competências comunicacionais capazes de influenciar os comportamentos dos indivíduos e populações para escolhas alimentares mais conscientes e saudáveis. O presente texto pretende contextualizar a evolução da integração da área das ciências da comunicação no ensino das Ciências da Nutrição, tendo como caso de estudo as unidades curriculares de Comunicação e de Projeto de Comunicação, do 1º ciclo de estudos em Ciências da Nutrição da FCNAUP. Estas duas unidades curriculares, no âmbito das ciências da comunicação, são complementares, atuando de forma concertada. Face aos atuais desafios da comunicação na área da nutrição, as metodologias de ensino utilizadas nestas unidades curriculares têm procurado promover a realização de atividades pedagógicas muito diversificadas e em contexto real. Pretende-se que os futuros nutricionistas sejam capazes de utilizar formatos de comunicação e modelos de educação alimentar inovadores e, ao mesmo tempo, apelativos, com o objetivo final de tornarem a sua intervenção cada vez mais eficaz do ponto de vista da tomada de consciência para a mudança de comportamentos alimentares por parte da população.
- Inequities in energy-balance related behaviours and family environmental determinants in European children: baseline results of the prospective EPHE evaluation studyPublication . Mantziki, Krystallia; Vassilopoulos, Achilleas; Borys, Jean-Michel; Plessis, Hugues Du; Gregório, Maria João; Graça, Pedro; et alBACKGROUND:Tackling inequalities in overweight, obesity and related determinants has become a top priority for the European research and policy agendas. Although it has been established that such inequalities accumulate from early childhood onward, they have not been studied extensively in children. The current article discusses the results of an explorative analysis for the identification of inequalities in behaviours and their determinants between groups with high and low socio-economic status. METHODS: This study is part of the Epode for the Promotion of Health Equity (EPHE) evaluation study, the overall aim of which is to assess the impact and sustainability of EPODE methodology to diminish inequalities in childhood obesity and overweight. Seven community-based programmes from different European countries (Belgium, Bulgaria, France, Greece, Portugal, Romania, The Netherlands) participate in the EPHE study. In each of the communities, children aged 6-8 years participated, resulting in a total sample of 1266 children and their families. A parental self-administrated questionnaire was disseminated in order to assess the socio-economic status of the household, selected energy balance-related behaviours (1. fruit and vegetable consumption; 2. soft drink/ fruit juices and water consumption; 3. screen time and 4. sleep duration) of the children and associated family environmental determinants. The Mann-Whitney U test and Pearson's chi-square test were used to test differences between the low and high education groups. The country-specific median was chosen as the cut-off point to determine the educational level, given the different average educational level in every country. RESULTS: Children with mothers of relatively high educational level consumed fruits and vegetables more frequently than their peers of low socio-economic status. The latter group of children had a higher intake of fruit juices and/or soft drinks and had higher screen time. Parental rules and home availability were consistently different between the two socio-economic groups in our study in all countries. However we did not find a common pattern for all behaviours and the variability across the countries was large. CONCLUSIONS: Our findings are indicative of socio-economic inequalities in our samples, although the variability across the countries was large. The effectiveness of interventions aimed at chancing parental rules and behaviour on health inequalities should be studied.