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Background and Study Aim: Despite recognised benefits of regular physical activity for health, the percentage of individuals linking with a physical activity practice sufficient to confer health benefits is low. The aim of current work is knowledge about effects of an extension of the motivation trans-contextual model application, specifically in the prediction of life satisfaction by veteran judo athletes. Material and Methods: It was used a sample of 99 Portuguese veteran judo athletes of both genders, aged between 30 and 76 years (M = 42.61 ±9.75), where through questionnaires were measured: basic psychological needs satisfaction, motivation, planned behaviour variables and life satisfaction. Results: The structural equations model showed that autonomy perception positively and significantly predicts autonomous motivation. In its turn it positively and significantly predicts intentions. Conclusions: Life satisfaction is positively and significantly predicted by intentions. Results authorise to emphasise the importance of fostering autonomy, since this will favour autonomous motivation, promoting a higher behavioural control over the practitioners’ intentions, thus generating a higher life satisfaction.

The main objective of this study is to know motivational variables and healthy lifestyles which predict the intention to be physically active, using the Self-Determination Theory (Deci & Ryan, 1985). Several authors (Fernández-Ozcorta, Almagro, & Saenz-López, 2015) showed students who have satisfied their basic psychological needs (BPN) and more self-determined motivation will have a greater intention to remain physically assets in the future. The sample consisted of 187 Spanish students in physical education classes (87 boys and 100 girls), belonging to three schools of Secondary Education of Badajoz, aged between 13 and 23 years, average age 15.5 years (SD = 1.70). We used perceived Locus Scale Causality in Physical Education (PLOC Scale), Scale measuring basic psychological needs (BPNES), Questionnaire Healthy Lifestyles (EVS), and scale of measurement of intentionality to be physically active (MIFA). We used analysis of reliability or internal consistency of the items and a regression analysis using the method of introducing block.

In our work we will focus on correlation between variables of lifestyle related to health and motivation ones, using the theoretical psychological needs (BPN) and autonomous motivation, which contributed to an explanation of variance in healthy behaviors, such as physical activity and sport participation.