Liliana Granja*, Milton Severo*, Ana Paula Alves‡, Elisabete Ramos*, Carla Lopes*
*Serviço de Higiene e Epidemiologia, Faculdade de Medicina da Universidade do Porto; ‡Centro de Saúde de Ermesinde, Portugal
Resumo
Este estudo pretendeu avaliar o efeito de duas metodologias de educação alimentar (software interactivo e sessões alimentares) no consumo e no conhecimento das recomendações de fruta e vegetais (F&V) em adolescentes. Foram avaliados 161 estudantes (idade mediana =14 anos), pertencentes a 3 grupos seleccionados aleatoriamente: no primeiro grupo aplicou-se uma sessão com software interactivo, o segundo recebeu cinco sessões de educação alimentar e o terceiro grupo não foi sujeito a qualquer intervenção. Usou-se um questionário auto-aplicado para avaliação da ingestão de F&V e dos conhecimentos sobre as recomendações, em dois momentos separados de dois meses. Foi observado um aumento médio de 0,74 e 0,55 porções na ingestão total de F&V no grupo 1 e 2, respectivamente. Contudo, estes aumentos não foram significativamente diferentes dos encontrados no grupo controlo (0,20) nem suficientes para alterar significativamente a proporção de indivíduos com um consumo superior a 5 porções F&V/dia. A proporção de alunos com conhecimentos sobre a ingestão recomendada de F&V aumentou significativamente nos grupos sujeitos a intervenção, quando comparados com o grupo controlo. As intervenções tiveram maior impacto no aumento dos conhecimentos do que no consumo de F&V.
Palavras-chave: educação alimentar; fruta e vegetais; adolescentes
Abstract
Effect of Two Nutrition Education Methodologies in Adolescents’ Intake and Knowledge About Recommendations of Fruit and Vegetables
]]> This study aimed to evaluate the effect of two nutrition education methodologies (interactive software and nutrition education sessions) in adolescents’ fruit and vegetables (F&V) intake and knowledge about recommendations on the intake of F&V.One hundred and sixty one students (median age=14 years) were evaluated and divided into three groups: the first group received one session with the interactive software, the second received 5 nutrition education sessions and the third was not submitted to any intervention. F&V intake and knowledge about recommendations were evaluated using a self-administered questionnaire, at baseline and two months after intervention. An increase of 0.74 and 0.55 servings on total F&V intake was found in group 1 and 2, respectively. However, these increases were not significantly different from the control group (0.20) and did not significantly change the proportion of students with total F&V intake of 5 or more servings per day. Knowledge about F&V intake recommendations increased significantly in the intervention groups, compared with the control group. The interventions were less successful in increasing F&V intake rather than knowledge about recommendations on the intake of F&V.Key-words: nutrition education; fruit and vegetables; adolescents
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REFERÊNCIAS
1 -World Health Organization (WHO). Diet, Nutrition and the Prevention of Chronic Diseases. Technical Report Series No. 797. Geneva: WHO, 1990.
[ Links ]2 - Beaglehole R, Bonita R. Public Health at the Crossroads: Achievements and Prospects. 2004. 2nd edition. Cambridge University Press. Capítulo 2: “Global health: past trends and present challenges”. p.15-53.
3 -World Health Organization (WHO). Highlights on Health in Portugal. Epidemiology, Statistics and Health Information Unit of the World Health Organization’s Regional Office for Europe, 1997.
]]> 4 - Ness AR, Powels JW. Fruit and vegetables, and cardiovascular disease: a review. Int J Epidemiol 1997;26:1-13.5 - Riboli E, Norat T. Epidemiologic evidence of the protective effect of fruit and vegetables on cancer risk. Am J Clin Nut 2003;78 (Suppl 3):559S-69.
6 - Liu RH. Health benefits of fruit and vegetables are from additive and synergistic combinations of phytochemicals. Am J Clin Nut 2003;78 (Suppl 3):517S-20.
7 - Chávez MM, Cháves A. Diet that prevents cancer: recommendations from the American Institute of Cancer Research. Int J Cancer 1998;11:85-9.
8 - Watt PAL, Welch AA, Day NE, Bingham SA. Is five a day an effective way of increasing fruit and vegetable intake?. Public Health Nutr 2003;7:257-61.
9 - World Wealth Assembly (WHA). Global strategy on diet, physical activity and health. 2004. Disponível em: http://www.who.int/gb/ebwha/pdf_files/WHA57/A57_R17-en.pdf (consultado em 15/Dez/ 2004).
10 - Havas S, Heimendinger J, Reynolds K et al. 5-A-DAY- for Better Health: a new research initiative. J Am Diet Assoc 1994;94:32-6.
11 - Ciliska D, Miles E, O’Brien M, et al. Effectiveness of Community - based interventions to increase fruit and vegetable consumption. J Nutr Educ 2000;32:341-52.
12 - Lien L, Lytle LA, Klepp KI. Stability in consumption of fruit, vegetables and sugary foods in a cohort from age 14 to 21. Prev Med 2001;33:217-26.
13 - Kelder SH, Perry CL, Klepp K-I, Lytle LA. Longitudinal tracking of adolescent smoking, physical activity, and food choice behaviours. Am J Public Health 1994;84:1121-6.
]]> 14 - Krebs-Smith SM, Heimendinger J, Patterson BH et al. Psychosocial factors associated with fruit and vegetable consumption. Am Journal Health Promotion 1995;10:98-104.15 - Guidelines for school health programs to promote lifelong healthy eating. J Sch Health 1997;67:9-26.
16 - Rodrigo CP, Aranceta J. School based nutrition education: lessons learned and new perspectives. Public Health Nutr 2001;4:131-9.
17 - Hoelscher DM, Evans A, Parcel GS, Kelder SH. Designing effective nutrition interventions for adolescents. J Am Diet Assoc 2002;102 (Suppl 3):52 S -62.
18 - Havas S, Anliker J, Damron D, Langenberg P, et al. Final results of the Maryland WIC 5-A-Day Promotion Program. Am J Public Health 1998;88:1161-7.
19 - Campbell MK, Carbone E, Morreale LH, et al. Randomized Trial of a Tailored Nutrition Education CD-ROM Pro gram for Women Receiving Food Assistance. J Nutr Educ Behav 2004;36:58-66.
20 - Baranowski T, Baranowski J, Cullen KW, et al. Squire’s Quest! Dietary outcome Evaluation of a Multimedia Game. Am J Prev Med 2003;24:52-60.
21 - Kreisel K. Evaluation of a computer-based nutrition education tool. Public Health Nutr 2003;7:271-7.
22 - Beech BM, Rice R, Myers L, Johnson C, Nicklas TA. Knowledge, attitudes, and practices related to Fruit and Vegetable consumption of high school students. J Adolesc Health 1999; 4:244-50.
23 - Bogers RP, Brug J, Assema P, Dagnelie PC. Explaining fruit and vegetables consumption: the theory of planned behaviour and misconception of personal intake levels. Appetite 2004;42:157-66.
]]> 24 - Brug J, Campbell M, Assema P. The application and impact of computer-generated personalized nutrition education: a review of the literature. Patient Educ Couns 1999; 36: 45-56.25 - Wardle J, Parmenter K, Waller J. Nutrition Knowledge and food intake. Appetite 2000;34:269-75.
26 - Lytle LA, Varnell S, Murray DM, et al. Predicting Adolescent’s Intake of Fruit and Vegetables. J Nutr Educ Behav 2003;35:170-8.
27 - Story M, Neumark-Sztainer D, French S. Individual and environmental influences on adolescents eating behaviour. J Am Diet Assoc 2002;102 (Suppl 3): 40 S -51.
28 - Shannon C, Story M, Fulkerson JA, French SA. Factors in the School Cafeteria Influencing Food Choices by High School Students. J Sch Health 2002;72:229-34.
29 - Lien N, Jacobs DR, Klepp KI. Exploring predictors of eating behaviour among adolescents by gender and socio-economic status. Public Health Nutr 2002;5:671-81.
Correspondência:
Prof.ª Carla Lopes Serviço de Higiene e Epidemiologia
Faculdade de Medicina da Universidade do Porto
]]> Alameda Prof. Hernâni Monteiro 4200 - 319 Portoe-mail: carlal@med.up.pt