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Authors
Advisor(s)
Abstract(s)
O aumento da prevalência de pré-obesidade e obesidade infantil na maioria dos países europeus, tem levado à necessidade de conceber intervenções efetivas no sentido de reverter esta situação. O objetivo do presente trabalho foi avaliar a eficácia da abordagem em consulta de nutrição com a aplicação de um protocolo comportamental no tratamento de excesso de peso infantil. A população em estudo foi constituída por crianças e adolescentes com idades compreendidas entre os seis e os dezoito anos e com percentil de Índice de Massa Corporal (IMC) igual ou superior a 85. As crianças e adolescentes que foram intervencionadas com a aplicação de um contrato comportamental, pertenceram ao grupo de intervenção (GI) e aquelas que não receberam este método pertenceram ao grupo controlo (GC). Os dados analisados basearam-se na evolução do z-score IMC e composição corporal (Massa Gorda e Massa Isenta de Gordura) com intervenção aos seis e aos doze meses. Foram incluídas, 18 crianças e adolescentes no GI e seis no GC com intervenção até aos seis meses, e 35 crianças e adolescentes no GI e 55 no GC com intervenção até aos 12 meses. No final da intervenção de seis e doze meses, o GI diminuiu significativamente o z-score de IMC, já o GC apenas diminuiu z-score de IMC com significado estatístico após 12 meses. Relativamente à evolução da composição corporal, verificou-se que o GI diminuiu de forma significativa o Índice de Massa Gorda (IMG) (p = 0,002), ao contrário do GC (p = 0,707) após 12 meses. Não se verificou diferença significativa na evolução do Índice de Massa Isenta de Gordura nos dois grupos em estudo. Conclui-se que o método em estudo é mais eficaz na diminuição do z-score de IMC e na melhoria do IMG aos 12 meses quando comparado com uma intervenção padrão para tratamento de excesso de peso infantil.
ABSTRACT - The increase in the prevalence of pre-obesity and childhood obesity in most European countries has led to the need to devise effective interventions to reverse this situation. The aim of this study was to evaluate the efficacy of the approach in nutrition consultation with the application of a behavioral protocol in the treatment of overweight children. The study population consisted of children and adolescents aged between six and eighteen years old and with a body mass index (BMI) percentile equal to or greater than 85. The children and adolescents who were intervened with the application of a behavioral contract belonged to the intervention group (IG) and those who did not receive this method belonged to the control group (CG). The analyzed data were based on the evolution of the BMI z-score and body composition (fat mass and free fat mass) with intervention at six and twelve months. Eighteen children and adolescents were included in the IG and six in the CG, with intervention up to six months, and 35 children and adolescents in the IG and 55 in the CG with intervention up to 12 months. At the end of the intervention of six and twelve months, the IG significantly decreased the BMI z-score, the CG only decreased the BMI z-score with statistical significance after 12 months. Regarding the evolution of body composition, it was found that the IG significantly decreased the Fat Mass Index (FMI) (p = 0,002), as opposed to the CG (p = 0,707) after 12 months. There was no significant difference in the evolution of the fat-free mass index in the two groups under study. It is concluded that the method under study is more effective in decreasing the BMI z-score and in improving the FMI at 12 months when compared with a standard intervention for the treatment of overweight children.
ABSTRACT - The increase in the prevalence of pre-obesity and childhood obesity in most European countries has led to the need to devise effective interventions to reverse this situation. The aim of this study was to evaluate the efficacy of the approach in nutrition consultation with the application of a behavioral protocol in the treatment of overweight children. The study population consisted of children and adolescents aged between six and eighteen years old and with a body mass index (BMI) percentile equal to or greater than 85. The children and adolescents who were intervened with the application of a behavioral contract belonged to the intervention group (IG) and those who did not receive this method belonged to the control group (CG). The analyzed data were based on the evolution of the BMI z-score and body composition (fat mass and free fat mass) with intervention at six and twelve months. Eighteen children and adolescents were included in the IG and six in the CG, with intervention up to six months, and 35 children and adolescents in the IG and 55 in the CG with intervention up to 12 months. At the end of the intervention of six and twelve months, the IG significantly decreased the BMI z-score, the CG only decreased the BMI z-score with statistical significance after 12 months. Regarding the evolution of body composition, it was found that the IG significantly decreased the Fat Mass Index (FMI) (p = 0,002), as opposed to the CG (p = 0,707) after 12 months. There was no significant difference in the evolution of the fat-free mass index in the two groups under study. It is concluded that the method under study is more effective in decreasing the BMI z-score and in improving the FMI at 12 months when compared with a standard intervention for the treatment of overweight children.
Description
Mestrado em Nutrição Clínica
Keywords
Nutrição Intervenção nutritional Protocolo comportamental Excesso de peso Criança Adolescente Nutrition Nutritional intervention Behavioral protocol Overweight Children Adolescent
Citation
Cabral VM. Intervenção nutricional em crianças e adolescentes com excesso de peso: avaliação da eficácia da abordagem em consulta com a aplicação de um protocolo comportamental [dissertation]. Lisboa: Escola Superior de Tecnologia da Saúde de Lisboa/Instituto Politécnico de Lisboa; Faculdade de Medicina/Universidade de Lisboa; 2019.
Publisher
Instituto Politécnico de Lisboa, Escola Superior de Tecnologia da Saúde de Lisboa