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Vera Ramos, Eliana V. Carraça, Teresa Paiva, and Fátima Baptista

The aim of this study was to identify the best predictor of sleep quality (SQ) among physical behavior or capacity-related variables, namely physical activity, sedentary time, fitness, and physical function (activities of daily living) of independent elders using a representative sample of Portuguese aged 65 years and older (N = 437). SQ and activities of daily living were evaluated by a questionnaire, sedentary time, and physical activity through accelerometry, and physical fitness by means of the Senior Fitness Test. The logistic regression analysis revealed that activities of daily living measured by the Composite Physical Function was the only explanatory variable discriminating between poor SQ and good SQ. Receiver operating characteristic analysis showed that the best trade-off between sensitivity and specificity to discriminate older adults with poor SQ and good SQ was 20 points in the Composite Physical Function (sensitivity = 57.9%; specificity = 60.9%; area under the curve = 0.600, 95% confidence interval [0.536, 0.665], p = .003). Better physical function seems to be associated with better SQ in independent elders.

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David Sánchez-Oliva, Antonio L. Palmeira, Eliana V. Carraça, Pedro J. Teixeira, David Markland, and Marlene N. Silva

Background: Using self-determination theory as a framework, the aim of this study was 2-fold: (1) identify different profiles of motivational strategies used by exercise professionals and (2) examine associations of these motivational profiles with work-related variables: measures, perceived job pressures, need satisfaction/frustration, and perceived exercisers’ motivation. Methods: Participants were 366 exercise professionals (193 males; experience = 7.7 [5.8] y) currently working in health and fitness settings. Results: Latent profile analysis identified a 3-profile model: (1) most need-supportive and least controlling (NS+; n = 225), (2) less need-supportive and slightly controlling (NS−; n = 42), and (3) most controlling and slightly need-supportive (mixed; n = 99). Professionals working less than 20 hours per week, more experienced, and female were more likely to integrate NS+, which was also associated with higher levels of work-related need satisfaction and clients’ perceived self-determination, and lower levels of job pressures and need-frustration. Conversely, NS− displayed the most maladaptive pattern of associations. Conclusions: The present findings highlight the importance of analyzing the correlates of different professional profiles, namely to help health and fitness organizations to provide high-quality motivational practices within an appropriate environment both for professionals and clients.