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Background: Translation into practice of effective physical activity interventions in primary care is difficult, due to a complex interaction of implementation determinants. We aimed to identify implementation barriers and facilitators of four primary care interventions: physical activity assessment, counselling, prescription, and referral. Methods: A systematic review of qualitative, quantitative and mixed-methods studies published since 2016 was conducted. The "Tailored Implementation for Chronic Diseases" (TICD) framework was adapted to extract and synthesize barriers and facilitators. Results: Sixty-two studies met the inclusion criteria. Barriers (n = 56) and facilitators (n = 55) were identified across seven domains, related to characteristics of the intervention, individual factors of the implementers and receivers, organizational factors, and political and social determinants. The five most frequently reported determinants were: professionals' knowledge and skills; intervention feasibility/compatibility with primary health care routine; interventions' cost and financial incentives; tools and materials; and professionals' cognitions and attitudes. "Social, political and legal factors" domain was the least reported. Physical activity counselling, prescription, and referral were influenced by determinants belonging to all the seven domains. Conclusion: The implementation of physical activity interventions in primary care is influenced by a broader range of determinants. Barriers and facilitators related with health professionals, intervention characteristics, and available resources were the most frequently reported. A deep understanding of the local context, with particularly emphasis on these determinants, should be considered when preparing an intervention implementation, in order to contribute for designing tailored implementation strategies and optimize the interventions' effectiveness. [ABSTRACT FROM AUTHOR]

The European Fans in Training (EuroFIT) program integrated need-supportive motivational strategies from Self-Determination Theory (SDT) in the design of a healthy lifestyle program delivered to overweight or obese male football fans (n = 1113; mean age of 45.9 [SD = 9.0] years old and BMI of 33.2 kg/m2 [SD = 4.6]) in professional football club settings in the UK, Portugal, Norway and the Netherlands. With a critical realist approach, we developed a structured thematic framework analysis based on Self-Determination Theory (SDT) to investigate the process of change in men who participated in the EuroFIT randomized controlled trial (RCT). We examined whether men's experiences of the social context of EuroFIT, and whether their engagement with the program's motivational strategies supported or frustrated their basic psychological needs while attempting to change their lifestyle behaviours. We found that men in all countries perceived the social contexts of the EuroFIT program as mostly needs-supportive, and that they found engagement with most of the program components helpful in supporting their psychological needs when initiating health behaviour changes. However, some of the program elements in the EuroFIT program were perceived as needs-frustrating by some participants and need-supportive by others. Implications for the use of need-supportive motivational strategies in designing future lifestyle interventions in sport settings to promote health behaviour change among male football fans are discussed. • The EuroFIT program used motivational strategies from Self-Determination Theory. • Men perceived the social contexts of EuroFIT as mostly needs-supportive. • Men's changes were supported through a toolbox of self-regulatory skills. • Being with 'other-men-like-me' supported perceptions of relatedness. • Use of competition fostered controlling motives towards PA adoption for some. [ABSTRACT FROM AUTHOR]

Background: Sleep, sedentary behaviour and physical activity are constituent parts of a 24h period and there are several questionnaires to measure these movement behaviours, the objective was to systematically review the literature on content and measurement properties of self- and proxy-reported questionnaires measuring movement behaviours in adults and older adults. Methods: The databases PubMed, CINAHL, PsycINFO and SPORTDiscus were systematically searched until April 2021. Articles were included if: the questionnaires were design for adults and older adults; the sample size for validity studies had at least 50 participants; at least, both validity and test-retest reliability results of questionnaire that were developed specifically to measure the amount of sleep, sedentary behaviour or physical activity, or their combination were reported; and articles had to be written in English, Spanish, French, Portuguese, German, Italian or Chinese. Findings and conclusions: Data extraction, results, studies' quality, and risk of bias were evaluated using the Consensus-based Standards for the selection of health Measurement INstruments (COSMIN) guidelines. Fifty-five articles were included in this review, describing 60 questionnaires. None of the questionnaires showed adequate criterion validity and adequate reliability, simultaneously; 68.3% showed adequate content validity. The risk of bias for criterion validity and reliability were very low in 72.2% and 23.6% of the studies, respectively. Existing questionnaires have insufficient measurement properties and frequent methodologic limitations, and none was developed considering the 24h movement behaviour paradigm. The lack of valid and reliable questionnaires assessing 24h movement behaviours in an integrated way, precludes accurate monitoring and surveillance systems of 24h movement behaviours. [ABSTRACT FROM AUTHOR]