ESAV - DIA - Documentos de congressos (comunicações, posters, actas)
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- Conhecimento da População Portuguesa sobre Fibras AlimentaresPublication . Guiné, Raquel; Martinho, Célia; Correia, Ana; Gonçalves, Fernando; Abrantes, José Luís; Carvalho, RenatoAs fibras têm sido objecto de estudo nas últimas décadas e um dos temas frequentemente abordado é a relação entre fibra alimentar e os benefícios para a saúde. Este trabalho pretendeu fazer uma análise estatística do conhecimento da população portuguesa relativa às fibras alimentares. Foi realizado um inquérito por questionário entre Abril e Junho de 2011 a uma amostra de 182 indivíduos. Foram abordados temas como hábitos de consumo, conhecimento sobre fibras, meios de divulgação e informação, rotulagem dos alimentos, relação entre fibras e saúde, entre outros. Alguns dos resultados obtidos indicam que aproximadamente 70% dos inquiridos possui idade entre 18 e 40 anos, ensino universitário e vive no meio urbano. Os resultados mais relevantes indicam que por dia apenas 13% dos inquiridos comem duas refeições com legumes e/ou saladas e 9% come no mínimo 3 peças de fruta. Os cereais integrais nunca são consumidos por 41% e apenas 18% o fazem pelo menos uma vez por semana. Cerca de 35% dos inquiridos sabem qual a origem das fibras e aproximadamente 70% afirma que existe maior quantidade de fibras nas leguminosas, fruta com casca e nos alimentos integrais. A consulta dos rótulos dos alimentos revela interesse por parte de 80% dos inquiridos, sendo que, do total de respostas, apenas 10% consulta sempre o rótulo. O teor de fibras que o alimento possui não é do interesse de 43% dos inquiridos tendo em conta que esta informação nunca é consultada ou então isso é feito raramente. Um valor semelhante (39%) refere que a quantidade de fibras não é tida em conta aquando da escolha dos alimentos. A grande maioria (90%) dos inquiridos tem a noção de que a ingestão de fibras contribui para a prevenção e tratamento de doenças. Das várias doenças referidas no inquérito, as mais citadas foram a prisão de ventre (86%), obesidade (80%), doenças cardiovasculares e colesterol (7 %) e o cancro do intestino (69%). Relativamente aos meios de divulgação e informação sobre fibras alimentares, a escola (44%) e a televisão (41%) foram considerados os meios de divulgação mais adequados para incentivar o consumo, mas, na realidade, são os centros de saúde e hospitais (25%) que têm mais informação disponível. Com a realização deste trabalho foi possível concluir que o conhecimento dos inquiridos acerca de fibras alimentares é insuficiente, e que apesar de lhes ser atribuída grande importância no tratamento e prevenção de doenças, o nível de ingestão é muito baixo.
- Factors affecting the BMI in adolescents attending the 2nd and 3rd cycles in Portuguese schools from ViseuPublication . Guiné, Raquel; Fernandes, Sofia; Abrantes, José Luís; Cardoso, Ana Paula; Ferreira, ManuelaIntroduction: Many studies show that the prevalence of overweight and obesity among children is rapidly increasing and developing into a major public health problem worldwide. Objectives: To assess the Body Mass Index (BMI) in school children from 2nd and 3rd cycles in Viseu schools and identify the sociodemographic, behavioural and educational factors that are related to the BMI. Methods: This is a quantitative descriptive and explanatory study with a convenience sample of 742 students attending schools of the 2nd and 3rd cycles in Viseu. The study was carried out by means of a questionnaire, which was produced for this study and previously submitted to the approval of the competent authority (DGE) for application in school context. Results: It was found that some sociodemographic factors were associated with BMI, namely age, school year, practicing high competition sport, being federate in a sport or vegetarian diet. Regarding the educational factors associated with BMI these included only the seminars given at school by specialist in nutrition. Furthermore, a significant relation between BMI and SF was found, where SF represents the school sources of knowledge. Finally among the behavioural factors associated to BMI stood: learning in classes, playing in the open air, reading books and use of internet. Conclusions: The results reinforce the need of adolescents to practice a healthy lifestyle and the role of family and school in providing the right information to help making right food choices. Finally in the sample at study the incidence of overweight and obesity was not at all preoccupying, thus indicating that the efforts to provide a good education both at home and at school are adequate and must be carried on.
- How the population’s perceptions influence their behaviours regarding the consumption of fibre rich foodsPublication . Martinho, CAC; Correia, AC; Gonçalves, FMJ; Carvalho, Renato; Abrantes, José Luís; Guiné, RaquelThe association between dietary fibre, health benefits and healthy food has been studied in recent years. The food industry, to accompany the strong interest shown by consumers, has placed at their disposal new products, rich in dietary fibre. In order to meet this huge interest and demand for these products, this work was elaborated, which had as main objective to evaluate the degree of knowledge of the Portuguese population about fibre and its effects on health, as well as evaluating the their consumption habits in respect of fibres. To achieve this goal an inquiry was carried out by questionnaire to 182 adults. The most relevant results indicate that only 13% of the inquired eat two meals a day with vegetables and/or salads and 9% eat at least 3 pieces of fruit. Whole grains are never consumed by 41% and 18% do so at least once a week. The vast majority (90%) of respondents have the notion that fibre intake contributes to the prevention and treatment of diseases. With this work it was concluded that respondents‘ knowledge about dietary fibre is insufficient, and that although they give great importance to their role in treatment and prevention of diseases, the level of intake is too low.
- Influence of food education in eating habits in students from 2nd and 3rd cycles in viseu schoolsPublication . Fernandes, Sofia; Cardoso, Ana Paula; Abrantes, José Luís; Ferreira, Manuela; Guiné, RaquelIntroduction: Food Education as a means of promoting a healthy diet is very important nowadays, given the problems identified in the eating habits of the young’s, resulting in public health problems. The intervention strategies haven’t proved to be very effective and therefore children and young students still reveal inadequate diets and sedentary lifestyles. Objectives: Verify the level of knowledge about food and habits of the students; Analyze how the information provided by educators is sufficient to promote a healthy diet; Understand if physical activity is being neglected at the expense of the use of new technologies in relation to the maintenance of healthy habits. Methods: This is an investigation of descriptive-correlational nature based on a questionnaire. The target population of this study was the students in Viseu schools. The sample consisted of students aged between 10 and 15 years from the 5th to the 9th levels. It was randomly selected among classes belonging to each level of education. The data collected was analyzed by SPSS, using the Descriptive and Inferential Statistics. Results: The majority of students revealed a deficient knowledge about the concept of healthy diet, and the recommended dosages for the main groups of foods. Furthermore, the evaluation of the eating habits of the students showed that sometimes they prefer foods that please, like chocolate or chips, for example in disfavor of foods that promote health, such as fruits, milk or soup. Conclusions: The food education is still a challenge and a major investment must be made on this area so as to promote health and minimize the important public health problems in future generations.