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Para evaluar el estilo de vida de las personas es importante el desarrollo de un cuestionario que se pueda aplicar a cualquier población. El objetivo principal fue adaptar y validar al contexto español el cuestionario de Estilos de Vida Saludables (EVS), y posteriormente dotar al cuestionario de validez concurrente por medio de un análisis de correlación con las variables de los niveles de motivación autodeterminada hacia la práctica deportiva. La muestra total del estudio estuvo compuesta por 812 personas entre los 14 y los 88 años (29.5±21.7). Cinco ítems evaluaron cada uno de los factores relacionados con un EVS: consumo de tabaco, hábitos de descanso, respeto al horario de las comidas, y mantener una alimentación equilibrada. Los resultados globales del modelo indicaron un ajuste óptimo, así como una buena validez concurrente. Este estudio ha proporcionado una escala válida y fiable para evaluar el estilo de vida saludable de la población española. Esta escala se considera de gran utilidad para su aplicación en diferentes centros, tanto escolares como deportivos, para, una vez aplicados, orientar a la población hacia un estilo de vida saludable.

The objective of this study was to analyse the effectiveness of two intervention programs: a physical exercise program with strategies to support the three basic psychological needs (autonomy, competence and relatedness); and a physical exercise program with nutritional education in order to improve the lifestyles of adult and elderly women who practiced functional maintenance. The Self-Determination Theory was applied as the theoretical framework. A sample of 135 women aged between 40 and 88 years (59.66 ± 10.76) who enrolled in a 12-week functional maintenance program and attended 24 exercise classes took part in the study. A quasi-experimental study was performed where strategies to support the three basic psychological needs were applied to one group and strategies for the improvement of eating habits were applied to the other group. No strategy was applied to the control group. The main results showed na improvement in experimental groups I and II when compared to the control group regarding the variables of autonomy, competence, intrinsic regulation, identified regulation, introjected regulation, external regulation and eating habits, after the application of the intervention programs. The conclusion is that both intervention programs were successful with this project's participants and that it is crucial to promote such intervention programs in functional maintenance classes, as they foster healthy lifestyles among participants.

The aim of this study was to translate and validate in Spanish the Questionnaire of the Transtheoretical Model of Change of Physical Exercise, of Prochaska and DiClemente (1983), and also to make adaptations and modifications as needed. The sample was composed of 812 people, aged between 14 and 88 years (29.5+21.7) was used. Confirmative factorial analysis, analysis of internal consistency and of predictive validity were carried out. After the confirmative factorial analysis, the Questionnaire of the Theoretical Model of Change of Physical Exercise showed acceptable results (x2/g.1=4,3, CFI=0,92, IFI= 0.92, TLI = 0.90, RMSEA = 0.06, SRMR = 0,05). Similarly, internal consistency obtained from the respective dimensions showed values above .70. A positive and significant prediction of the most active stages of the Transtheoretical Model (action and maintenance) was found on the ‘intention to be physically active’. This study has enabled the provision of a valid and reliable.