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Previous issue date: 2013-01-17 / Cardiovascular diseases are the leading cause of death worldwide and its prevention and non pharmacological treatment depends on a change in life style that involves adherence to a healthy diet combined with regular physical exercise. Maintaining these habits implies a motivation to which self-efficacy is an important moderator. To establish these relationships are required precise measurements, therefore Bandura developed scales that evaluate the degree of confidence in maintaining a diet and exercise routine even in situations that may hinder the maintenance of these habits. This study aimed to translate, perform semantic adaptation and search for evidence of the psychometric scales Self-efficacy to Regulate Exercise and Self-efficacy to Regulate Eating Habits. The sample was composed of 303 participants, 113 males and 190 females that were diagnosed with at least one of the factors for the development of a cardiovascular event: obesity, high cholesterol and triglycerides, hypertension, diabetes mellitus and metabolic syndrome. The first section presents the results of the translation, adaptation and search for evidence based on internal structure and relationship with external variables of self-efficacy to regulate exercise. The Kappa test, made to determine the degree of agreement about the final version of the instrument, showed itself a good agreement between evaluators judges (k = 0500) and exploratory factor analysis presented a single factor. The scale presented a good accuracy verified by the internal consistency coefficient ( = 0.97). For analysis of predictive validity, it was considered part of the sample 75 subjects who started and finished a program of Lifestyle Change (MERC). Multiple linear regression demonstrated the predictive power of the total score of the instrument on increasing the Maximum Oxygen Consumption (VO2 max) measured at the end of the program (p> 0.05, = 1.47). Moreover, it was confirmed a quasi-experimental validity by the variability of scale scores during the program, as well as the positive and significant correlation between the initial and final scores of the instrument (p> 0.05). The second section presents the results of psychometric evidence of self-efficacy to regulate Eating Habits, whose final Portuguese version had a moderate level of agreement between evaluators judges (k = 0492). Exploratory factor analysis grouped the items into three factors that can cause a relapse compared to healthy diet: social situations, feelings and physical states and situations that trigger cravings. Excellent accuracy was found through internal consistency coefficient Cronbach's alpha ( = 0.96). It was found quasi-experimental validity using the same sample and statistical technique of the first article (p> 0.05). Bandura's instruments are valid measures to evaluate selfefficacy to regulate eating habits and exercise among Brazilians with cardiovascular risk and therefore it can be important tools in programs aimed at adherence to healthy habits. / Doen?as cardiovasculares s?o a principal causa de morte no mundo e sua preven??o e tratamento n?o medicamentoso depende de uma mudan?a no estilo que vida que envolve ades?o a uma dieta saud?vel aliada a pr?tica regular de exerc?cio f?sico. A manuten??o desses h?bitos implica em uma motiva??o para qual a auto-efic?cia constitui um importante moderador. Para estabelecer essas rela??es s?o necess?rias medidas precisas, por isso Bandura desenvolveu escalas que avaliam o grau de confian?a em manter uma dieta e rotina de exerc?cio f?sico mesmo diante de situa??es que podem dificultar a manuten??o destes h?bitos. Este estudo se prop?s a traduzir, realizar adapta??o sem?ntica e buscar evid?ncias psicom?tricas das escalas Selfefficacy to Regulate Exercise e Self-efficacy to Regulate Eating Habits. Participaram 303 sujeitos, 113 do sexo masculino e 190 do sexo feminino que foram diagnosticados com no m?nimo um dos fatores para o desenvolvimento de um evento cardiovascular: obesidade, colesterol e triglicer?deos alterados, hipertens?o, diabetes mellitus e s?ndrome metab?lica. A primeira se??o traz os resultados da tradu??o, adapta??o e busca de evid?ncias com base na estrutura interna e na rela??o com vari?veis externas da Self-efficacy to regulate exercise. O teste Kappa, realizado para verificar o grau de concord?ncia quanto ? vers?o final do instrumento, revelou uma boa concord?ncia entre os ju?zes avaliadores (k=0.500) e a an?lise fatorial explorat?ria apresentou um ?nico fator. A escala apresentou uma boa precis?o constatada atrav?s do coeficiente de consist?ncia interna alpha de Cronbach ( =0.97). Para an?lise de validade preditiva, considerou-se parte da amostra 75 sujeitos que iniciaram e terminaram um programa de Mudan?a de Estilo de Vida (MERC). A regress?o linear m?ltipla demonstrou o poder preditivo do escore total do instrumento sobre o aumento do Consumo M?ximo de Oxig?nio (VO2 m?x) medido nos participantes ao final do programa (p>0.05; =1.47). Al?m disso, foi confirmada validade quase experimental atrav?s da variabilidade dos escores da escala durante o programa, bem como a correla??o positiva e significativa entre os escores iniciais e finais do instrumento (p>0.05). O estudo apresentado na segunda se??o traz os resultados de evid?ncias psicom?tricas da Self-efficacy to regulate Eating Habits, cuja vers?o final em portugu?s teve um n?vel moderado de concord?ncia entre ju?zes avaliadores (k=0.492). A an?lise fatorial explorat?ria agrupou os itens em 3 fatores que podem provocar uma reca?da em rela??o ? dieta saud?vel: situa??es sociais; sentimentos e estados f?sicos e situa??es que provocam fissura. Uma excelente precis?o foi encontrada atrav?s do coeficiente de consist?ncia interna alpha de Cronbach ( =0.96). Foi constatado evid?ncia de validade quase experimental, utilizando a mesma amostra e t?cnica estat?stica do primeiro artigo (p>0.05). Os instrumentos de Bandura s?o medidas v?lidas para avaliar auto-efic?cia para regular h?bito alimentar e exerc?cio f?sico em brasileiros com risco cardiovascular e por isso podem ser importantes ferramentas em programas que visem ? ades?o a h?bitos saud?veis.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/832 |
| Date | 17 January 2013 |
| Creators | Boff, Raquel de Melo |
| Contributors | Oliveira, Margareth da Silva |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Psicologia, PUCRS, BR, Faculdade de Psicologia |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 2588426296948062698, 500, 600, 2599381623216554467 |
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