Mind the gap: Danish school heads' ability to implement a national physical activity school requirement.

In 2014, the Danish government introduced a wide-ranging reform of primary and lower secondary education that applied to all public schools. A distinctive feature was that it became mandatory for schools to provide an average of 45 min of daily physical activity (PA). The capacity for change of local school heads and the schools overall are considered key to fulfilling such a policy-driven requirement. The aim of this study is therefore to explore local school heads' ability to implement the stated requirement of 45 min of daily PA within their local organizational capacity for change. Eleven semi-structured interviews were conducted across 11 schools. Respondents were school staff with management responsibilities (leading teachers with school management responsibilities, deputy heads and school heads). Results indicate that local school heads are central agents in converting the Danish school requirement of 45 min of daily PA into local action. This includes their ability to advance broad aims into concrete goals, secure supportive structures and organize the implementation strategy. Heads also need to support the staff in building sufficient knowledge capacity on how to arrange and incorporate PA into their daily practice, support the widespread dissemination of this knowledge across the school and reserve work hours for such activities. Assigning local PA ambassadors was particularly highlighted as important implementation support, as they can help build and disseminate knowledge while also broadcasting the school head's strategy and focus on integrating and upholding students' PA levels.

Same, Same but Different: Comparing Program Fidelity at Early Versus Late Adopters of a Successful Long-Term School-Based Physical Activity Intervention.

Schools have been identified as a promising setting for promoting physical activity (PA). Yet, to realize changes at the population level, successful school-based PA programs need to go to scale. The Svendborgproject is an effective school-based program promoting additional physical education (PE) lessons. The aim of this study is to determine program fidelity across different school groups, representing early and late adopters of the Svendborgproject, and how these are adapting the intervention. Three different school groups were identified, covering the original intervention schools and two groups of late adopters consisting of four former control schools, and five normal schools without any previous connection to the program. A PE teacher questionnaire (n = 122) was used to determine school fidelity. The results show that, while the original intervention schools have implemented the program with the highest fidelity, all schools have implemented the program with medium to high fidelity. It is suggested that having front-runner schools achieving early success with the program both strengthens political project support and provides strategies to back late adopters' implementation of the program. Furthermore, results from the current study suggest that continual promotion of the program by school heads is less important if support is established at the structural and organizational macro level. Finally, we highlight the importance of scaling up organizational capacity when scaling up program reach to assure a workable balance between fidelity and improving the fit to specific contexts.

Physical Activity for Children and Youth with Physical Disabilities: A Case Study on Implementation in the Municipality Setting.

Children and youth with disabilities participate less in physical activity (PA) than their peers. This qualitative multiple-case study aimed to assess how municipal practices support PA implementation for these children and youth. A total of 23 interviews were conducted, which covered participants from different departments and professional positions in two municipalities. Local policy documents were included. A thematic analysis was performed, which was based on Winter's integrated implementation model and Gittell's theory on relational coordination. The study findings indicate how PA implementation for children and youth with disabilities is a complex challenge that involves several departments and agents. The study demonstrates that having an explicit policy that focuses on parasport can positively influence organisational and interorganisational behaviour, and that coordinating consultants seem to play an essential role in PA implementation. However, there is room for improvement at the municipal level in order to promote a better overall performance in terms of the support for PA participation of children and youth with disabilities.

In It for the Long Haul: RE-AIM Evaluation of a Preschool Programme Implementing and Maintaining Adult-Initiated Motor Skill Development and Physical Activity across a Two-Year Period.

Good motor skills (MS) are considered important for children's social, psychological and physical development and general physical activity (PA) levels. The Motor skill in Preschool study (MiPS) aimed to optimize children's MS through weekly PA sessions. The aim of this study is to use the RE-AIM framework to report the two-year implementation process of MiPS since the programme's initiation. Data were collected through a staff questionnaire based on the RE-AIM framework. Data were collected at three months, one year and two years after initiation. Results show that the pedagogical staff believes that the programme promotes MS in children. Implementation measures only showed medium to low fidelity concerning the core element of performing adult-initiated PA sessions with a duration of at least 45 min 4 days a week. The largest barrier was finding the time to plan these PA sessions. Still, the content of the PA sessions achieved high fidelity scores and the programme was deemed suitable for staff's everyday practice and in alignment with the stated pedagogical goals. The mandatory competence development course was highly valued as strong implementation support. It is notable that there is a large variation in the implementation among the preschools with some struggling more than others.

The Role of Local Leaders in the Implementation of Adult-Initiated Motor Skill Development and Physical Activity in Preschool-A Case Study.

Good motor skills (MS) and physical activity (PA) are considered important for children's physical, social, and psychological development. The Motor skills in PreSchool (MiPS) study-Denmark aimed to optimize children's MS through weekly PA sessions. The aim of this paper is to explore the role of local preschool leaders and their strategies in influencing the implementation of MiPS into daily practice. Leaders from all seven preschools in the project were interviewed. The results show that preschool leaders used communication (setting an agenda and dedicating speaking time to address the program at staff meetings) and reflective questioning about the pedagogic staff's current practice in relation to the program (adding focus on MS and PA) as their main course of action. Through this form of communication and reflective questioning, the preschool leaders aimed to involve the staff and heighten their sensemaking in the existing practice while also ensuring that the implementation of the program was kept in progress. In sum, future implementation of an MS and PA initiative in preschools should put emphasis on a shared responsibility between leaders and staff combined with an adaptive approach in which the existing practice is reshaped rather than just increasing the workload of the pedagogic staff.

Exploring implementation of a nationwide requirement to increase physical activity in the curriculum in Danish public schools: a mixed methods study.

BACKGROUND: In 2014, the Danish Government introduced a wide-ranging school reform that applied to all public schools in Denmark. A distinctive feature of the reform was that it became mandatory to implement an average of 45 min of daily physical activity within the curriculum. Using the RE-AIM framework as an evaluation tool, the objective of the current study was to evaluate the reach, effectiveness, adoption, implementation, and maintenance of mandatory physical activity within the curriculum at ten Danish schools. METHODS: A complementary mixed-methods approach using accelerometers, questionnaires, and semi-structured interviews was conducted. A total of 10 schools were invited to participate, including 846 students, 76 teachers, and 10 school managers on various levels. Students were invited to wear an accelerometer for seven consecutive days. Teachers were invited to participate in a questionnaire, and school managers were encouraged to take part in a semi-structured interview. RESULTS: Results showed that, on average, 45.2% of the students were active at least 45 min daily within the curriculum. Teacher and school management interest in physical activity, competencies development, and shared decision-making were identified as central factors for adoption of the requirement. Scheduling physical activity within scheduels and collaborations with external parties were found to influence implementation. Finally, internal coordination, motivated school staff, and school management priority were identified as central factors for maintenance. CONCLUSIONS: This study provides an evaluation on a nationwide physical activity requirement in Danish public schools. When introducing a wide-ranging nation-wide requirement on physical activity within the curriculum, school managers need to prioritize and support the implementation process. Teachers need to be involved in the decision processes in order to ensure motivation and local ownership. The study also highlights the benefits of an internal coordinator as well as development of a shared strategy among schools, municipalities, and other stakeholders in order to succeed with the implementation.

Organisational factors that facilitate research use in public health policy-making: a scoping review.

BACKGROUND: Although important syntheses and theoretical works exist in relation to understanding the organisational factors that facilitate research use, these contributions differ in their scope and object of study as well as their theoretical underpinnings. Therefore, from an exploratory angle, it may be useful to map out the current literature on organisational factors of research use in public health policy-making when revisiting existing theories and frameworks to gain further theoretical insights. METHODS: Herein, a scoping review technique and thematic content analysis were used to bring together findings from both synthesised and empirical studies of different types to map out the organisational factors that facilitate research use in public health policy-making. RESULTS: A total of 14 reviews and 40 empirical studies were included in the analysis. These were thematically coded and the intra-organisational factors reported as enabling research use were examined. Five main categories of organisational factors that advance research use in policy organisations - (1) individual factors, (2) the management of research integration, (3) organisational systems and infrastructures of research use, (4) institutional structures and rules for policy-making, and (5) organisational characteristics - were derived as well as 18 subcategories and a total of 64 specific factors, where 27 factors were well supported by research. CONCLUSIONS: Using a scoping review methodology, the intra-organisational factors influencing research use in policy-making (including individual factors) were systematically mapped and the theories applied in this area of research were assessed. The review findings confirm the importance of an intra-organisational perspective when exploring research use, showing that many organisational factors are critical facilitators of research use but also that many factors and mechanisms are understudied. The synthesis shows a lack of studies on politicians and the need for more theoretically founded research. Despite increased efforts to update the existing evidential and theoretical basis of research use, we still need frameworks that combine different approaches and theories to help us grasp the complex organisational mechanisms that facilitate research use in policy settings.

Implementation of a successful long-term school based physical education intervention: Exploring provider and programme characteristics.

There is an ongoing need for research focusing on how to implement physical activity programmes into a school setting. This includes documentation of the extent to which programmes are compatible with the basic views of providers and their local practices. The present study explores the Svendborgproject - a programme tripling the amount of physical education in six public schools, sustaining it for 10-years and documenting a decreased incidence of overweight, obesity and cardiovascular risk factors. The aim was to analyse provider and programme characteristics of the Svendborgproject to gain insights into providers motives for adopting, implementing, and maintaining the programme. Six school heads and six teachers were interviewed to explore how they perceived programme compatibility to their school's practice and their own role as providers. Both teachers and school heads found the additional lessons a valuable asset that fitted existing school values and priorities. Additionally, physical education teachers participated in a course providing new perspectives and teaching methods that aided the implementation of the programme. Lastly, school heads stressed that implementation fidelity was heavily dependent on the dedication of physical education teachers and on having simple programme requirements that made it clear what could be expected of the programme.

Copenhagen Consensus statement 2019: physical activity and ageing.

From 19th to 22nd November 2018, 26 researchers representing nine countries and a variety of academic disciplines met in Snekkersten, Denmark, to reach evidence-based consensus about physical activity and older adults. It was recognised that the term 'older adults' represents a highly heterogeneous population. It encompasses those that remain highly active and healthy throughout the life-course with a high intrinsic capacity to the very old and frail with low intrinsic capacity. The consensus is drawn from a wide range of research methodologies within epidemiology, medicine, physiology, neuroscience, psychology and sociology, recognising the strength and limitations of each of the methods. Much of the evidence presented in the statements is based on longitudinal associations from observational and randomised controlled intervention studies, as well as quantitative and qualitative social studies in relatively healthy community-dwelling older adults. Nevertheless, we also considered research with frail older adults and those with age-associated neurodegenerative diseases, such as Alzheimer's and Parkinson's disease, and in a few cases molecular and cellular outcome measures from animal studies. The consensus statements distinguish between physical activity and exercise. Physical activity is used as an umbrella term that includes both structured and unstructured forms of leisure, transport, domestic and work-related activities. Physical activity entails body movement that increases energy expenditure relative to rest, and is often characterised in terms of intensity from light, to moderate to vigorous. Exercise is defined as a subset of structured physical activities that are more specifically designed to improve cardiorespiratory fitness, cognitive function, flexibility balance, strength and/or power. This statement presents the consensus on the effects of physical activity on older adults' fitness, health, cognitive functioning, functional capacity, engagement, motivation, psychological well-being and social inclusion. It also covers the consensus on physical activity implementation strategies. While it is recognised that adverse events can occur during exercise, the risk can be minimised by carefully choosing the type of activity undertaken and by consultation with the individual's physician when warranted, for example, when the individual is frail, has a number of co-morbidities, or has exercise-related symptoms, such as chest pain, heart arrhythmia or dizziness. The consensus was obtained through an iterative process that began with the presentation of the state-of-the-science in each domain, followed by group and plenary discussions. Ultimately, the participants reached agreement on the 30-item consensus statements.

Report Card Grades on the Physical Activity of Children and Youth Comparing 30 Very High Human Development Index Countries.

BACKGROUND: To better understand the childhood physical inactivity crisis, Report Cards on physical activity of children and youth were prepared concurrently in 30 very high Human Development Index countries. The aim of this article was to present, describe, and compare the findings from these Report Cards. METHODS: The Report Cards were developed using a harmonized process for data gathering, assessing, and assigning grades to 10 common physical activity indicators. Descriptive statistics were calculated after converting letter grades to interval variables, and correlational analyses between the 10 common indicators were performed using Spearman's rank correlation coefficients. RESULTS: A matrix of 300 grades was obtained with substantial variations within and between countries. Low grades were observed for behavioral indicators, and higher grades were observed for sources of influence indicators, indicating a disconnect between supports and desired behaviors. CONCLUSION: This analysis summarizes the level and context of the physical activity of children and youth among very high Human Development Index countries, and provides additional evidence that the situation regarding physical activity in children and youth is very concerning. Unless a major shift to a more active lifestyle happens soon, a high rate of noncommunicable diseases can be anticipated when this generation of children reaches adulthood.

Implementation of triple the time spent on physical education in pre-school to 6th grade: A qualitative study from the programme managers' perspective.

Schools constitute an important arena for promoting physical activity. However, school-based programmes often face implementation challenges, and the identification of factors influencing the implementation process is considered important in order to secure the effectiveness of future interventions. The aim of this study was to identify factors influencing the various implementation stages during the initial years of a programme tripling the amount of physical education at the primary school level. Document analysis of publicly available programme descriptions and meeting minutes, were conducted. Document analysis was complemented by two semi-structured group interviews with main programme managers to gather in-depth programme experiences and perspectives. Results show that early involvement of schools may ensure the best possible match between programmes and the needs and resources of schools, and that an ongoing shared partnership may help programme managers address program challenges in early stages. It seems that predetermined core elements in programmes are essential. At the same time programmes must be flexible enough for adaptation to individual school contexts. Finally, the implementation of triple the amount of physical education, is supported by teachers receiving a professional development course focusing on how to organise outdoor physical education in different seasons and weather conditions.

Using the RE-AIM framework to evaluate a school-based municipal programme tripling time spent on PE.

Documenting the implementation of effective real-world programmes is considered an important step to support the translation of evidence into practice. Thus, the aim of this study was to identify factors influencing the adoption, implementation and maintenance of the Svendborgproject (SP) - an effective real-world programme comprising schools to implement triple the amount of physical education (PE) in pre-school to sixth grade in six primary schools in the municipality of Svendborg, Denmark. SP has been maintained for ten years and scaled up to all municipal schools since it was initiated in 2008. The Reach, Effectiveness, Adoption, Implementation and Maintenance framework (RE-AIM) was applied as an analytic tool through a convergent mixed method triangulation design. Results show that SP has been implemented with high fidelity and become an established part of the municipality and school identity. The successful implementation and dissemination of the programme has been enabled through the introduction of a predominantly bottom-up approach combined with simple non-negotiable requirements. The results show that this combination has led to a better fit of programmes to the individual school context while still obtaining high implementation fidelity. Finally, the early integration of research has legitimated and benefitted the programme.

Understanding and scaffolding Danish schoolteachers' motivation for using classroom-based physical activity: study protocol for a mixed methods study.

INTRODUCTION: The benefits of physical activity for children's health, both mental and physical, and its positive effects on academic achievement are well established. Research also emphasises that schools could provide a natural setting for regular physical activity. There is, however, a limited amount of knowledge about teachers' views when it comes to integrating physical activity as part of teaching. The aim of this study is to understand teachers' motivation for integrating physical activity as part of teaching and to assess their need for guidance and support. METHODS AND ANALYSIS: The study uses an explanatory sequential mixed-methods design. Schools from across Denmark are included in the sample. The design comprises two separated phases-a quantitative and qualitative phase. The quantitative phase is guided by the self-determination theory where teachers' motivation will be measured using the Work Task Motivation Scale for Teachers. The theory of scaffolding guides the qualitative phase, which consists of in-depth interviews with participants selected from the quantitative phase based on levels of motivation and on demographic information. In accordance with the study aims, the analysis of data will identify teachers' internal and external levels of motivation. The purpose of the qualitative phase is to enhance understanding of teachers' motivation and of their need for support in the use of physical activity in teaching. ETHICS AND DISSEMINATION: All relevant ethics approvals have been acquired. All participants in this study will provide written informed consent prior to data collection. All data emerging from the quantitative and qualitative phase will be anonymised for analysis. Ethics approval was requested from the Regional Committee on Health Research Ethics for Southern Denmark approval ID S-20162000-40 and the Danish Data Protection Agency approval ID 16/15491). The study was deemed not notifiable by both authorities. TRIAL REGISTRATION NUMBER: NCT02894346; Pre-results.

Contextually tailored interventions can increase evidence-informed policy-making on health-enhancing physical activity: the experiences of two Danish municipalities.

BACKGROUND: The present study aims to test out contextually tailored interventions to increase evidence-informed health-enhancing physical activity policy-making in two Danish municipalities. METHODS: The study was performed as experiments in natural settings. Based on results from a pre-intervention study defining the needs and contexts of the two settings, the interventions were developed based on logical models. The interventions aimed at increasing the use of knowledge in policy-making, primarily via strengthening intersectoral collaboration. The interventions were evaluated via pre-, post- and 12-month follow-up questionnaires and qualitative interviews were carried out prior to the intervention start. RESULTS: The use of knowledge changed in several ways. In one municipality, the use of stakeholder and target group knowledge increased whereas, in the other municipality, the use of research knowledge increased. In both municipalities, the ability to translate knowledge to local context, the political request and the organisational procedures for use of knowledge increased during the interventions. There was some variation between the two settings, which shows the importance of tailoring to context. Most of the changes were diminished at the 12-month follow-up. CONCLUSION: Contextually tailored interventions have the potential to increase evidence-informed policy-making on health-enhancing physical activity. However, this finding needs to be tested in larger samples and its sustainability must be strengthened.

What happened in the 'Move for Well-being in School': a process evaluation of a cluster randomized physical activity intervention using the RE-AIM framework.

BACKGROUND: The aim of this study was to address the gap in the translation of research into practice through an extensive process evaluation of the Move for Well-being in School programme using the RE-AIM framework. The purpose was to gain insight into the extent by which the intervention was adopted and implemented as intended and to understand how educators observed its effectiveness and maintenance. METHODS: Public schools located in seven municipalities in Denmark were invited to enroll their 4th to 6th grade classes in the project. Of these, 24 school decided to participate in the project in the school-year 2015-16 and were randomly (cluster) allocated to either intervention or control group. A process survey was completed online by school personnel at the start, at midterm, and at the end of the school year. Additionally, informal interviews and observations were conducted throughout the year. RESULTS: At the 12 intervention schools, a total of 148 educators were involved in the implementation of the programme over the school-year. More than nine out of ten educators integrated brain breaks in their lessons and practically all the physical education teachers used the physical education lesson plans. The educators delivered on average 4.5 brain breaks per week and up to 90% of the physical education teachers used the project lesson plans for at least half of their classes. Half of the educators initiated new recess activities. A total of 78%, 85% and 90% of the educators believed that the implemented recess, brain break and physical education components 'to a high degree' or 'to some degree' promoted the pupils' well-being, respectively. CONCLUSIONS: This study shows that it is possible to design a school-based PA intervention that educators largely adopt and implement. Implementation of the PA elements was stable throughout the school year and data demonstrate that educators believed in the ability of the intervention to promote well-being among the pupils. Finally, the study show that a structured intervention consisting of competence development, set goals for new practices combined with specific materials, and ongoing support, effectively reached a vast majority of all teachers in the enrolled schools with a substantial impact. TRIAL REGISTRATION: Date of registration: retrospectively registered on 24 April 2015 at Current Controlled Trials (DOI 0.1186/ ISRCTN12496336 - named: "The role of physical activity in improving the well-being of children and youth").

Influence of motor skills training on children's development evaluated in the Motor skills in PreSchool (MiPS) study-DK: study protocol for a randomized controlled trial, nested in a cohort study.

BACKGROUND: Good motor skills are considered important for children's physical, social, and psychological development, but the relationship is still poorly understood. Preschool age seems to be decisive for the development of motor skills and probably the most promising time-window in relation to preventive strategies based on improved motor skills. This research program has four overall aims: (1) investigation of the effect of a structured program aimed at improving motor skills in 3-6-year-old children on current and future motor skills, health, cognition, and wellbeing; (2) establish reference data on motor skills in 3-6-year-olds; (3) description of early development of musculoskeletal problems; and (4) establishment of a population-based cohort of 3-6-year-olds. METHODS: Over a four-year period, all preschools in a Danish municipality, Svendborg, will implement a new program aimed at optimizing children's motor skills. By introducing the program into a subset of the preschools at onset and comparing these children to another subset (control) that will not receive the intervention the first three years, it is possible to document a potential effect of the intervention. At the same time, a cohort will be established including all children attending preschools in the municipality with extensive baseline data collection: gross and fine motor skills; movement patterns; musculoskeletal complaints; physical activity; anthropometry; general wellbeing; cognitive abilities; language status; medical history; demographic background; and more. The children are aged 3-6 years at baseline. A total of 1461 children have been invited into the cohort, 368 to the intervention arm and 359 to the control arm. Follow-up time for the trial is 2.5 years. The cohort is planned to run at least until the children leave school at age 15-16 years. Longer follow-up will depend on future funding. DISCUSSION: If the results of the trial are positive, the intervention can be implemented in other similar settings with reasonable ease and at a relatively low initial cost. This is due to the extensive end-user involvement, the broad population base, and the pragmatic nature of the intervention. The cohort will provide important information about the influence of early motor skills on children's development across many domains and the potential interactions between these domains. TRIAL REGISTRATION: ISRCTN registry, ISRCTN23701994 . Registered on 13 October 2016.

Results From Denmark's 2016 Report Card on Physical Activity for Children and Youth.

BACKGROUND: The first Danish Report Card on Physical Activity (PA) for Children and Youth describes Denmark's efforts in promoting and facilitating PA and PA opportunities for children and youth. METHODS: The report card relies primarily on a synthesis of the best available research and policy strategies identified by the Report Card Research Committee consisting of a wide presentation of researchers and experts within PA health behaviors and policy development. The work was coordinated by Research and Innovation Centre for Human Movement and Learning situated at the University of Southern Denmark and the University College Lillebaelt. Nine PA indicators were graded using the Active Healthy Kids Canada Report Card development process. RESULTS: Grades from A (highest) to F (lowest) varied in Denmark as follows: 1) Overall Physical Activity (D+), 2) Organized Sport Participation (A), 3) Active Play (INC; incomplete), 4) Active Transportation (B), 5) Sedentary Behaviors (INC), 6) Family and Peers (INC), 7) School (B), 8) Community and the Built Environment (B+), and 9) Government strategies and investments (A-). CONCLUSIONS: A large proportion of children in Denmark do not meet the recommendations for PA despite the favorable investments and intensions from the government to create good facilities and promote PA.

Improving the well-being of children and youths: a randomized multicomponent, school-based, physical activity intervention.

BACKGROUND: The benefits of physical activity for the mental health and well-being of children and young people are well-established. Increased physical activity during school hours is associated with better physical, psychological and social health and well-being. Unfortunately many children and young people exercise insufficiently to benefit from positive factors like well-being. The main aim of this study is to develop, implement and evaluate a multi-component, school-based, physical activity intervention to improve psychosocial well-being among school-aged children and youths from the 4th to the 6th grade (10-13 years). METHODS: A four-phased intervention - design, pilot, RCT, evaluation - is carried out for the development, implementation and evaluation of the intervention which are guided by The Medical Research Council framework for the development of complex interventions. 24 schools have been randomized and the total study population consists of 3124 children (baseline), who are followed over a period of 9 months. Outcome measure data at the pupil level are collected using an online questionnaire at baseline and at follow-up, 9 months later with instruments for measuring primary (general physical self-worth) and secondary outcomes (self-perceived sport competences, body attractiveness, scholastic competences, social competences and global self-worth; enjoyment of PA; self-efficacy; and general well-being) that are both valid and manageable in setting-based research. The RE-AIM framework is applied as an overall instrument to guide the evaluation. DISCUSSION: The intervention focuses on the mental benefits of physical activity at school, which has been a rather neglected theme in health promotion research during recent decades. This is unfortunate as mental health has been proclaimed as one of the most important health concerns of the 21st century. Applying a cluster RCT study design, evaluating the real-world effectiveness of the intervention, this study is one of the largest physical activity intervention projects promoting psychosocial well-being among children and youths. Through a comprehensive effectiveness evaluation and a similar substantial process evaluation, this study is designed to gain knowledge on a broad variety of implementation issues and give detailed information on project delivery and challenges at the school level - among other things to better inform future practice. TRIAL REGISTRATION: Date of registration: 24 April 2015 retrospectively registered at Current Controlled Trials with study ID ISRCTN12496336.

The Copenhagen Consensus Conference 2016: children, youth, and physical activity in schools and during leisure time.

From 4 to 7 April 2016, 24 researchers from 8 countries and from a variety of academic disciplines gathered in Snekkersten, Denmark, to reach evidence-based consensus about physical activity in children and youth, that is, individuals between 6 and 18 years. Physical activity is an overarching term that consists of many structured and unstructured forms within school and out-of-school-time contexts, including organised sport, physical education, outdoor recreation, motor skill development programmes, recess, and active transportation such as biking and walking. This consensus statement presents the accord on the effects of physical activity on children's and youth's fitness, health, cognitive functioning, engagement, motivation, psychological well-being and social inclusion, as well as presenting educational and physical activity implementation strategies. The consensus was obtained through an iterative process that began with presentation of the state-of-the art in each domain followed by plenary and group discussions. Ultimately, Consensus Conference participants reached agreement on the 21-item consensus statement.