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- Effects of school-based interventions on motivation towards physical activity in children and adolescents: A systematic review and meta-analysisPublication . Kelso, Anne; Linder, Stephanie; Reimers, Anne K.; Klug, Stefanie J.; Alesi, Marianna; Scifo, Lidia; Borrego, Carla Chicau; Monteiro, Diogo; Demetriou, YolandaIntroduction: Assuming that motivation is the key to initiate and sustain beneficial health behaviors, the aim of this systematic review was to analyze the effects of school-based physical activity interventions on a variety of motivational outcomes towards PA in school-aged children and adolescents. Methods: A comprehensive literature search was carried out in six electronic databases to identify randomized controlled trials and quasi-experimental trials examining the effects of PA interventions implemented during the regular school day, e.g., during physical education lessons or lunch breaks. Primary outcomes of interest were students’ motivation, basic psychological needs, goal orientation, enjoyment, and motivational teaching climate in physical education. Meta-analyses were conducted for these outcomes using Comprehensive Meta-analysis software. Secondarily, intervention effects on students’ PA behaviors were examined and the findings summarized narratively. Methodological quality of studies was evaluated using the Cochrane Collaboration’s tool for assessing risk of bias for randomized trials; certainty of evidence on outcome level was evaluated using the GRADE approach. Results: In total, 57 studies carried out between 2001 and 2018 were included in this review. Sixteen individual meta analyses were performed and revealed significant pooled effects for the outcomes enjoyment (g = 0.310), perceived autonomy (g = 0.152), identified regulation (g = 0.378), intrinsic motivation (g = 0.419), selfdetermination index (g = 0.672), task/mastery climate (g = 0.254), ego/performance climate (g = − 0.438), autonomy supportive climate (g = 0.262), task goal orientation (g = 1.370), ego goal orientation (g = − 0.188). The narrative data synthesis indicated an increase in students’ PA behavior. The overall risk of bias was high across all studies and certainty of evidence of meta-analyzed outcomes ranged from very low to moderate. Moderate certainty of evidence was found for ego/performance climate and ego goal orientation. Conclusions: Meta-analyses suggest that school-based PA interventions may be effective in increasing a variety of motivational outcomes. However, the certainty of evidence was limited in the majority of outcomes. Further research is needed to identify effective intervention strategies that increase students’ motivation towards PA
- Effects of school-based interventions on motivation towards physical activity in children and adolescents: protocol for a systematic reviewPublication . Demetriou, Yolanda; Reimers, Anne K; Alesi, Marianna; Scifo, Lidia; Borrego, Carla Chicau; Monteiro, Diogo; Kelso, AnneBackground: Recent studies have observed low levels of physical activity in children and adolescents worldwide. Physical activity interventions are increasingly carried out to counteract this development. The school environment is an ideal setting for such interventions to take place as large numbers of children and adolescents can be addressed. With the assumption that motivation is the key to initiate and sustain beneficial health behaviors, theory-based intervention studies apply motivational strategies to increase students’ participation in physical activity. The main objective of this systematic review will be to analyze the effects of school-based physical activity interventions on a variety of motivational outcomes towards physical activity in school-aged children and adolescents. Methods: Comprehensive literature searches will be conducted in multiple electronic databases, including MEDLINE, Scopus, PsycINFO, ERIC, PSYNDEX, Physical Education Index, and SPORTDiscus. We will include randomized controlled trials (RCTs) and quasi-experimental studies examining the effects of school-based physical activity interventions (e.g., physical activity components during school lessons including physical education, or during morning, lunch and afternoon breaks). Primarily extracurricular physical activity interventions will not be considered. The primary outcomes will be students’ motivation, basic psychological needs, goal orientation, enjoyment, and motivational teaching climate in physical education. Secondary outcomes will be the students’ physical activity behaviors in-class, during school, and in leisure time. Only peer-reviewed articles published in English will be considered. Three reviewers will independently screen all citations and full-text articles, and two reviewers will abstract data. The quality of the included studies will be assessed with the Cochrane Collaboration’s tool for assessing risk of bias for RCTs and the GRADE methodology will be used to assess the certainty of the body of retreived evidence. Discussion: In order to increase and maintain physical activity levels in children and adolescents, motivation towards physical activity should be sustained. It is anticipated that the results of this systematic review will provide information as to which strategies implemented in the school setting are effective in increasing students’ motivation towards physical activity, and hence increase their physical activity during school and after-school hours.