Resumo

CERVELLO, E. et al. Exercise, psychological well-being, sleep quality and situational motivation in physical education students. CPD [online]. 2014, vol.14, n.3, pp.31-38. ISSN 1989-5879.

The aim of this study was to determine how the exposure to different intensities of acute physical activity, caused changes in psychological well-being (subjective vitality and affective state), sleep quality and situational intrinsic motivation in adolescent students on physical education classes. 120 students (50 boys and 70 girls) aged between 16 and 20 years, completed different questionnaires to measure these variables. The results showed direct and positive associations between subjective vitality, positive affect state and the quality of sleep and significant differences, increasing situational intrinsic motivation and decreasing post-session negative affect when comparing light and vigorous intensities. Almost all dimensions of psychological well-being improved when comparing the pre-intervention and post intervention situations, regardless of physical activity intensity. Contrary to our hypothesis, sleep quality did not improve by practice of physical activity. The main conclusion is that the acute exercise, regardless of intensity, improves well-being and that vigorous physical activity is causing major motivational changes, must take this into account when designing physical activity programs for adolescents.

Palavras-chave : Exercise; well-being; quality of sleep; motivation.

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