Propriedades psicométricas da versão brasileira do Exercise Motivations Inventory (EMI-2)

Abstract

Resumo: O objetivo do estudo foi validar as propriedades psicométricas da versão brasileira do Exercise Motivations Inventory (EMI-2).Foram realizadas a tradução para o português da versão original e a retrotradução para o inglês. Após discretas modificações apontadas nos processos de tradução, a versão traduzida do EMI-2 apresentou equivalências semântica, idiomática, cultural e conceitual. Para identificação das propriedades psicométricas, a versão final do EMI-2 traduzida foi administrada em amostra de 2380 universitários de ambos os sexos. A adequação da versão traduzida com 44 itens distribuídos em 10 fatores foi testada e a validade confirmatória foi assumida para a amostra selecionada. Os resultados mostraram aceitáveis coeficientes alfa de Cronbach (entre 0,738 e 0,918) e 78,4% dos itens apresentaram substancial índice de concordância kappa (≥ 0, 61%) em réplicas de aplicação do questionário. Concluindo, a tradução, a adaptação transcultural e as qualidades psicométricas do EMI-2 foram satisfatórias, o que viabiliza sua aplicação em estudos no Brasil. Palavras-chave: Motivação. Exercício físico. Validação. Psicometria. Psychometric properties of the Brazilian version of the Exercise Motivations Inventory (EMI-2) Abstract: This study aims to validate the psychometric properties of the Brazilian version of the Exercise Motivations Inventory (EMI-2).The original version was translated into Portuguese and back-translated into English. After minor changes identified in the translation process, the Portuguese version of the EMI-2 showed semantic, idiomatic, cultural and conceptual equivalences. The final version of the translated EMI-2 was administered in sample of 2380 university of both sexes to identify the psychometric properties. The adequacy of the translated version with 44 items distributed among 10 factors was tested, and construct confirmatory validity for the selected sample was assumed. The results showed Cronbach's alpha coefficient acceptable (.738 to .918) and 78.4% of items had substantial kappa index of agreement (≥ 61%) when the application of the questionnaire was repeated. In conclusion, the translation, cross-cultural adaptation and psychometric qualities of the EMI-2 were satisfactory, thus enabling its application in studies in Brazil.

Exercise motives in a sample of Brazilian university students

“…The information about exercise motives was obtained by applying the Exercise Motivations Inventory (EMI-2), translated, adapted and validated for use in the young Brazilian population (Guedes, Legnani, & Legnani, 2012), with additional questions about socio-demographic indicators, including self-reported body weight and height measurements.…”

“…Taking into consideration the fact that the sampling plan involved clusters, the sampling design effect was defined at 1.5, so that the minimum sample was initially expected to include 2,200 university students. However, the definite sample used in the treatment of information was comprised of 2,380 students (1,213 women and 1,167 men), 45% of whom were aged < 19 years, 38% between 20 and 24 years, 10% between 25 and 29 years and the remaining 7% > 30 years.The information about exercise motives was obtained by applying the Exercise Motivations Inventory (EMI-2), translated, adapted and validated for use in the young Brazilian population (Guedes, Legnani, & Legnani, 2012), with additional questions about socio-demographic indicators, including self-reported body weight and height measurements.The translated version of the EMI-2 is comprised of 44 items, grouped into ten motivational factors, representing a wide range of exercise motives defined a priori and validated with confirmatory factorial analysis resources: leisure/wellbeing, stress management, social recognition, affiliation, competition, health rehabilitation, disease prevention, body weight management, physical appearance, and physical fitness. Following its design, participants respond to the 44 items of the inventory with the heading "Personally, I practice (or could practice) physical exercise….," using the Likert scale of six points (0 = "completely disagree" to 5 = "completely agree").…”

Motives, Motivation and Exercise Behavioral Regulations in CrossFit and Resistance Training Participants

“…The EMI-2 assessed exercise participation motives (participatory motives, referring to the ''why'' of goal pursuit). The original questionnaire were translated and validated to Portuguese language (Guede, Legnani, & Legnani, 2012) and contains a total of 44 items, grouped in 10 subscales: enjoyment and well-being (6 items), stress management (4 items), social recognition (4 items), affiliation (4 items), competition (5 items), health pressures (3 items), ill-health avoidance (6 items), weight management (4 items), appearance (4 item), and strength and endurance (4 items). The responses of each question are made on a 6-point Likert-type scaleranging from 0 (not at all true for me) to 5 (very true for me).…”

Motivos para a prática de exercício físico em universitários e fatores associados

“…brasileira (GUEDES, LEGNANI & LEGNANI, 2011), com questões adicionais relacionadas ao sexo, à idade e aos indicadores direcionados à determinação da classe econômica familiar. Os procedimentos para definição da classe econômica familiar acompanharam diretrizes propostas pela ASSOCIAÇÃO NACIONAL DE EMPRESAS DE PESQUISA -ABEP (2008), envolvendo informações relatadas quanto à posse de utensílios domésticos e grau de instrução de membros da família.…”