An intelligent model to decode students' behavioral states in physical education using back propagation neural network and Hidden Markov Model.

This paper highlights the need for intelligent analysis of students' behavioral states in physical education tasks. The hand-ring inertial data is used to identify students' motion sequence states. First, statistical feature extraction is performed based on the acceleration and angular velocity data collected from the bracelet. After completing the filtering and noise reduction of the data, we perform feature extraction by Back Propagation Neural Network (BPNN) and use the sliding window method for analysis. Finally, the classification capability of the model sequence is enhanced by the Hidden Markov Model (HMM). The experimental results indicate that the classification accuracy of student action sequences in physical education exceeds 96% after optimization by the HMM method. This provides intelligent means and new ideas for future student state recognition in physical education and teaching reform.

Was it a HIIT? A process evaluation of a school-based high-intensity interval training intervention.

BACKGROUND: Despite a growing body of research investigating high-intensity interval training (HIIT) in schools, there are limited process evaluations investigating their implementation. This is concerning because process evaluations are important for appropriately interpreting outcome findings and augmenting intervention design. This manuscript presents a process evaluation of Making a HIIT, a school-based HIIT intervention. METHODS: The Making a HIIT intervention spanned 8 weeks and was completed at three schools in Greater Brisbane, Australia. Ten classes (intervention group) completed 10-min teacher-led HIIT workouts at the beginning of health and physical education (HPE) lessons, and five classes (control group) continued with regular HPE lessons. The mixed methods evaluation was guided by the Framework for Effective Implementation by Durlak and DuPre. RESULTS: Program reach: Ten schools were contacted to successfully recruit three schools, from which 79% of eligible students (n = 308, x ¯ age: 13.0 ± 0.6 years, 148 girls) provided consent. Dosage: The average number of HIIT workouts provided was 10 ± 3 and the average number attended by students was 6 ± 2. Fidelity: During HIIT workouts, the percentage of time students spent at ≥ 80% of maximum heart rate (HRmax) was 55% (interquartile range (IQR): 29%-76%). Monitoring of the control group: During lessons, the intervention and control groups spent 32% (IQR: 12%-54%) and 28% (IQR: 13%-46%) of their HPE lesson at ≥ 80% of HRmax, respectively. Responsiveness: On average, students rated their enjoyment of HIIT workouts as 3.3 ± 1.1 (neutral) on a 5-point scale. Quality: Teachers found the HIIT workouts simple to implement but provided insights into the time implications of integrating them into their lessons; elements that helped facilitate their implementation; and their use within the classroom. Differentiation: Making a HIIT involved students and teachers in the co-design of HIIT workouts. Adaption: Workouts were modified due to location and weather, the complexity of exercises, and time constraints. CONCLUSION: The comprehensive evaluation of Making a HIIT provides important insights into the implementation of school-based HIIT, including encouragings findings for student enjoyment and fidelity and recommendations for improving dosage that should be considered when developing future interventions. TRIAL REGISTRATION: ACTRN, ACTRN12622000534785 , Registered 5 April 2022 - Retrospectively registered.

A Roadmap for Sustainable Community-Engaged Partnerships in Athletic Training and Using a Traveling Athletic Training Camp as an Implementation Strategy.

Improving access to athletic trainers and increasing diversity in the profession have been major goals of the Strategic Alliance, with a particular interest in the secondary school setting. Within many marginalized communities, individuals are often faced with a lack of resources, high rates of poverty, and limited access to health care. This social and economic climate often extends to inequitable athletic training services and patterns of disparate health. Widely used and recognized strategies to cultivate diversity and address health inequities include community-engaged partnerships; however, these approaches are not well implemented across the athletic training discipline. Successful community-engaged partnerships link communities and universities, and they are rooted in intentionality to address intermediate and long-term health equity outcomes. Athletic training professionals and scholars frequently encounter gaps in resources and process-oriented methods to participate in community-engaged efforts that could include a roadmap or pathway to follow. To bridge this gap, our aims were 2-fold: (1) to disseminate a roadmap for building sustainable community-engaged partnerships in athletic training with the intent of promoting diversity, equity, inclusion, and social justice across athletic training education, research, and professional service and (2) to demonstrate how the roadmap can be implemented using a community-based athletic training education camp as an example. Implementation of the athletic training camp using the roadmap took place at secondary schools where community-engaged partnerships have been established throughout a geographic region known as the Alabama Black Belt, a region burdened with poor health outcomes, limited athletic trainer presence, and lower quality of life, exacerbated by racial and socioeconomic inequalities. Implementing this roadmap as a strategy to build sustainable community-engaged partnerships offers an innovative, interactive, and effective approach to addressing community needs by exposing secondary school students to the athletic training profession, advancing equitable athletic training research practices, and upholding and promoting the principles of diversity, equity, inclusion, and social justice in athletic training education.

Gender inequality in table tennis: an analysis of women coaches in certification courses

Abstract Aim: This study aimed to investigate the presence of women coaches in table tennis certification courses carried out by national and international federations. Methods: We carried out an analysis on documents extracted from the official websites of the Brazilian Table Tennis Confederation (CBTM) and the International Table Tennis Federation (ITTF). Those documents presented the certificated coaches by each organization. We also collected information about the location of the coach according to the five macro-regions of Brazil. Results: We found a greater frequency of men (89.3%) compared to women (10.7%) in ITTF courses and, in Brazil, we also found a higher rate of men (83.7%) compared to women (16.3%) certified by CBTM. We found no increase in women's participation in ITFF courses over the years. In both national and international courses, most of the women coaches (international = 36%; national = 46.4%) were from the Southeast, while few women coaches were found in the Northeast and North. Conclusion: The findings of our study reveal that the training process of table tennis coaches is still mostly occupied by men. We also found a discrepancy between the macro-regions of the country where most women coaches are from the Southeast. CBTM managed to almost double the women's representation among coaches (from 10.7% to 16%) due to the policy that has been adopted in an attempt to increase the number of women in the sport. We highlight the importance of gender equality policies to improve women coaches' participation in table tennis.

Effects of a School-Based Intervention on Motivation for Out-of-School Physical Activity Participation.

Purpose: We tested the effects of an autonomy-supportive intervention in physical education (PE) on high-school students' autonomous motivation in PE, and their autonomous motivation, intentions, and physical activity (PA) behavior in a leisure time guided by the trans-contextual model. Method: PE classes in two schools were assigned to receive either an autonomy-supportive intervention and/or a control intervention via random allocation by the school. The PE teacher of the school assigned to the autonomy-supportive intervention was trained to provide autonomy support while the PE teacher of the school assigned to the control intervention received no training. Students (N = 256) in all classes completed measures of perceived teacher autonomy support, autonomous motivation in PE and leisure time, and beliefs, intentions, and PA in leisure time before and immediately after the intervention. Results: Results revealed direct effects of the autonomy-supportive intervention on changes in perceived autonomy support. However, there were no direct intervention effects on change in intentions and PA behavior. The intervention also had indirect effects on changes in autonomous motivation in PE and leisure time. Additionally, change in perceived autonomy support had direct effects on change in autonomous motivation in PE and indirect effects on change in leisure-time autonomous motivation. Changes in autonomous motivation in leisure time had direct effects on changes in beliefs and indirect effects on changes in intentions and PA behavior through changes in beliefs. Conclusion: The study provides valuable information on the effect of autonomous supportive climate on students' beliefs toward PA in PE lessons and in their leisure time outside of school.

Does Motivation in Physical Education Have an Impact on Out-of-School Physical Activity over Time? A Longitudinal Approach.

Previous research based on the trans-contextual model proposes that autonomous motivation in physical education (PE) is transferable to an out-of-school leisure-time (LT) context. However, only cross-sectional and unidirectional analyses have been conducted. The present study used a longitudinal design assessing N = 1681 students (M = 14.68 years) on two occasions, measuring the following constructs: perceived need for support in PE, motivational regulation during PE and LT, attitude, subjective norm, perceived behavioral control, intention, and physical activity behavior. Findings based on mixed effect models revealed that autonomy, competence, and relatedness support of the PE teacher were positively related to autonomous motivation. Moreover, similar motivational regulation types were found to significantly cross-lag across contexts. Through longitudinal mediation analyses, further support for the impact of autonomous motivation on physical activity, mediated by intention, attitude, and perceived behavioral control, was found. Suggestions for educational stakeholders regarding how to promote students' autonomous motivation are provided.

Development of the Physical Literacy Environmental Assessment (PLEA) tool.

Physical literacy is becoming increasingly popular in sport, recreation, physical education and physical activity settings and programming. We developed an environmental assessment tool to evaluate the extent child and youth activity programs implement physical literacy across four domains: environment, programming, leaders and staff, and values and goals. The Physical Literacy Environmental Assessment (PLEA) tool was developed in 3 phases. First, the PLEA tool was created, content validity established, and physical literacy leaders were consulted. In the second phase, the PLEA tool was completed and tested by 83 child and youth programs and it was validated with individual physical literacy assessments completed on children in programs that scored in the top 10% and bottom 10% on the PLEA tool. Third, a National consultation was conducted, and program leaders provided feedback on the PLEA tool. In Phase 1, the PLEA tool was modified and shortened from 41 to 29 indicators, based on feedback from physical literacy content leaders. In Phase 2, participants in programs that scored in the top 10% had significantly higher scores on the upper body object control domain of PLAYfun (p = 0.018), and significantly higher PLAYself scores (p = 0.04) than participants in programs that scored in the bottom 10%. In Phase 3, over 80% of program leaders identified the PLEA tool was useful, and relevant to their areas of practice. The completed PLEA tool is a 20-item environmental assessment tool to evaluate to what degree child and youth programming implement physical literacy across four domains: environment, programming, leaders and staff, and values and goals. The application and validity of the PLEA tool beyond child and youth physical education, sport, dance and recreation sectors, such as in early years programs, should be investigated.

Canadian Assessment of Physical Literacy in grades 7-9 (12-16 years): Preliminary validity and descriptive results.

Background: The Canadian Assessment of Physical Literacy (CAPL) accurately and reliably assesses the physical literacy level of young children. However, in preliminary analyses ceiling effects were noted among 183 older children. The purposes of this study were to assess the validity of a modified CAPL designed for older children (CAPL 789) and to offer descriptive results.Methods: CAPL 789 assessed the physical literacy of Canadian children in grades 7-9. Data were collected from schools and recreation facilities in the provinces of Alberta and Ontario (Canada), yielding a new sample of 245 participants (129 girls, 13.7 ± 0.9 years). Descriptive statistics were calculated for all CAPL domains. Age and gender effects were examined to support the validity.Results: Physical competence score (/32) increased with age (F = 4.90, p < 0.05), the means in grades 7-9 being 18.9 ± 3.2, 20.9 ± 4.4 and 21.2 ± 3.4, respectively. Girls scored significantly higher (t = -2.29, p < 0.05) than boys (6.6 ± 1.2 vs 6.3 ± 1.3) in the knowledge assessment (/10).Conclusion: The CAPL 789 was feasible among children from grades 7-9. Additional research is required to establish the psychometric properties in children 12 to 16 years.

Effectiveness of a school-based physical activity intervention on adiposity, fitness and blood pressure: MOVI-KIDS study.

OBJECTIVE: To test a physical activity intervention (MOVI-KIDS) on obesity indicators, physical fitness and blood pressure (BP) in children. METHODS: A crossover randomised cluster trial was conducted, which comprised 1434 children (4-7 years old) from 21 schools in the provinces of Cuenca and Ciudad Real in the Castilla-La Mancha region of Spain. The intervention consisted of three 60 min sessions/week on weekdays between October 2013 and May 2014. Changes in anthropometric variables, physical fitness and BP parameters were measured. The analyses used were mixed regression models to adjust for baseline covariates under cluster randomisation. RESULTS: There was no significant improvement in overweight/obesity with the intervention compared with the control group in both sexes. Further, the intervention did not alter other adiposity indicators or BP parameters. Improvements in cardiorespiratory fitness were seen in girls (1.19; 95% CI 0.31 to 2.08; p=0.008), but not in boys. Finally, there was an improvement in velocity/agility in both girls (-2.51 s; 95% CI -3.98 to -1.05; p=0.001) and boys (-2.35 s; 95% CI -3.71 to -0.98; p=0.001), and in muscular strength in both girls (0.66; 95% CI 0.03 to 1.28; p=0.038) and boys (1.26; 95% CI 0.03 to 1.28; p<0.001). CONCLUSION: MOVI-KIDS was not successful in reducing the adiposity and maintained BP levels at previous healthy values in children. The intervention, however, showed significant improvements in cardiorespiratory fitness in girls, and muscular strength and velocity/agility in boys and girls. TRIAL REGISTRATION NUMBER: NCT01971840; Post-results.

Evidences of construct validity, criteria and validation of the motor competence assessment batery of tests in preschoolers / Evidências de validade de construto, critério e fidedignidade da motor competence assessment em pré-escolares

ABSTRACT The literature has evidenced the need for validation studies of motor tests to assess motor competence (MC). Luz et al (2016) proposed a battery of tests, that is, the Motor Competence Assessment (MCA) to evaluate MC in Portuguese children and adolescents. The purpose of the present study was to investigate the evidences of this MCA validity in a sample of Brazilian preschoolers, in addition to assess the correlation between the MC results obtained through MCA and the Test of Gross Motor Development-2 (TGMD-2). 251 male and female preschool-age children from six reference Centers in Early Childhood Education in the city of João Pessoa-PB participated in study. Data were collected by using MCA and TGMD-2. The results of the Confirmatory Factor Analysis (CFA) showed two models, one of them with appropriate adjustment indexes. The interclass correlation coefficients ranged between 0.77 and 0.96, which indicates an excellent reliability; the correlation between MCA and TGMD-2 was significant with a moderate magnitude (r = 0.57, p <0.01). The structure of three latent variables of the MC construct in the MCA was confirmed by the CFA. However, a two-dimensional model is suggested. MCA and TGMD-2 seemed to measure similar aspects of MC. Reliability enabled us to conclude that the MCA protocol applied to preschoolers maintains temporal stability.

RESUMO A literatura tem evidenciado a necessidade de estudos de validação de testes motores para avaliação da competência motora (CM). Assim, Luz e colaboradores propuseram uma bateria de testes Motor Competence Assessment (MCA) para avaliação da CM em crianças e adolescentes portugueses. Objetivou-se investigar as evidências de validade da MCA em uma amostra de pré-escolares brasileiros e testar a correlação entre resultados da CM avaliados com a MCA e o Test of Gross Motor Development -2 (TGMD-2). Participaram 251 pré-escolares de ambos os sexos, de seis Centros de Referência em Educação Infantil de João Pessoa-PB. Os dados foram coletados por meio da MCA e do TGMD-2. Os resultados da análise fatorial confirmatória (AFC) mostraram dois modelos, um com índices de ajuste adequados; Os coeficientes de correlação interclasse variaram entre 0,77 e 0,96, indicando confiabilidade excelente; a correlação entre a MCA e o TGMD-2 foi significante com magnitude moderada (r = 0,57, p<0,01). A estrutura de três variáveis latentes do construto CM na MCA foi confirmada pela AFC. Entretanto, sugere-se um modelo bidimensional. A MCA e o TGMD-2 parecem medir aspectos semelhantes da CM. A confiabilidade permitiu concluir que o protocolo da MCA aplicado a pré-escolares mantém estabilidade temporal.

The image of physical education teachers held by students from two universities / A imagem dos professores de educação física de alunos de duas universidades

ABSTRACT This study analyses the image that students of initial physical education teacher education (PETE) from two different universities (University of Alicante- UA, Spain, and Central University of Ecuador-UCE) have of physical education teachers. This qualitative and comparative study uses a metaphorical approach. Qualitative methodology was used to analyse the participating students metaphors in order to explore whether or not they suit the current learning and teaching perspectives in the field of Physical Education, and whether the images conveyed any differences between universities due to the influence of the context in the Physical Education teacher image and in gender stereotypes. A total of 190 students participated in the study (n= 105 men; n= 85 women). The software AQUAD 7 was used to process the data. The results showed that there were no obvious gender differences that keep women away from physical activity. As well as not excessive differences due to the different context of the participants.

RESUMO Este estudo analisa a imagem que alunos de educação inicial de professores de educação física de duas universidades diferentes (Universidade de Alicante - UA, Espanha e Universidade Central do Equador - UCE) possuem professores de educação física. Este estudo qualitativo e comparativo utiliza uma abordagem metafórica. A metodologia qualitativa foi utilizada para analisar as metáforas dos alunos participantes, a fim de explorar se elas se adequam ou não às perspectivas atuais de aprendizagem e ensino no campo da Educação Física, e se as imagens transmitiram alguma diferença entre as universidades devido à influência do contexto na imagem do professor de Educação Física e nos estereótipos de gênero. Um total de 190 alunos participaram do estudo (n= 105 homens; n= 85 mulheres). O software AQUAD 7 foi utilizado para processar os dados. Os resultados mostraram que não havia diferenças de gênero óbvias que afastassem as mulheres da atividade física. Assim como não há diferenças excessivas devido ao contexto diferente dos participantes.

Estratégias de resistência e empoderamento de treinadoras portuguesas / Strategies of resistance and empowerment of portuguese women coaches in sports

RESUMO Considerando que a participação das mulheres no esporte tem evidenciado desigualdade e assimetria de gênero nas várias funções e âmbitos de atuação, esta pesquisa tem como objetivo analisar como a hegemonia dos homens na função de treinador é negociada e contestada por mulheres que ocupam esta posição. Para tanto, foram entrevistadas 37 treinadoras portuguesas que atuam em esporte individuais e coletivos. Os resultados indicam que a presença no cargo de treinadora não garante uma contestação a esta hegemonia. O caráter generificado atribuído à esta ocupação promove situações discriminatórias que exigem das mulheres ações de empoderamento e agência para que possam modificar estruturas que tendem a perpetuar sua sub-representação.

ABSTRACT The participation of women in sports is the subject of analysis of several studies that continuously evidence inequality and asymmetry in relation to men in the different spheres of activity within this field. The objective of this study is to comprehend male hegemony as coaches and how it is accepted and/or contested in the sports environment by identifying attitudes that incorporate this male dominance or that contradict and resist it. The sample of this study is composed of interviews with 37 Portuguese female coaches in both individual and team sports. The results indicate that the presence of women in leadership positions in sports, such as of head coach, does not ensure in itself an objection to male hegemony. It becomes necessary that women incorporate the concept of "agency" in order to identify and implement strategies that resist and consequently change the patriarchal structures that perpetuate the underrepresentation of women in coaching sports.

Teacher self-efficacy and its sources in physical education teaching training experiences / Desenvolvimento da autoeficácia docente durante o estágio supervisionado na formação inicial em educação física

ABSTRACT During initial training, aspiring teachers should learn how to deal with the high cognitive, emotional and behavioral demands generated by teaching. At the same time, they need to develop and strengthen their personal belief that they will be capable of handling said challenges. In the physical education context, these demands can be even more challenging, given the environment and conditions in which classes are taught. This study aimed to analyze teacher self-efficacy belief as to teaching physical education, and its construction from situations experienced during school-based teacher training. A total of 87 future teachers (54% women; average age = 21.8) from a public university in the state of São Paulo completed a sociodemographic questionnaire and the Teachers' Sense of Efficacy Scale (Tschannen-Moran & Woolfolk Hoy, 2001). To describe sources of teacher self-efficacy, reflective portfolios composed as the final product of a supervised internship were analyzed. The student teachers showed moderate to high self-efficacy belief, which was primarily supported by teaching experiences and verbal persuasions. The relevance of teacher self-efficacy for teacher training, particularly in physical education early training processes, is discussed.

RESUMO Na formação inicial, futuros professores deveriam aprender a como lidar com a elevada demanda cognitiva, emocional e comportamental decorrente do ensino. Ao mesmo tempo, precisam desenvolver e fortalecer a crença pessoal de que serão capazes de lidar com esses desafios. No contexto da educação física, essas demandas podem ser ainda mais desafiadoras dado o ambiente e as condições em que as aulas são ministradas. Este estudo teve por objetivo analisar a crença de autoeficácia docente para ensinar educação física e sua constituição a partir das experiências vividas durante a realização das disciplinas de estágio curricular supervisionado. 87 futuros professores (54% mulheres; idade média = 21,8) de uma universidade pública do interior do estado de São Paulo responderam a um questionário sociodemográfico, escala de autoeficácia docente e de fontes de autoeficácia docente. Para descrever as fontes de autoeficácia foram analisados os portfólios reflexivos produzidos como produto final do estágio supervisionado. Os futuros professores demonstraram moderada a elevada crença de autoeficácia, que foram sustentadas basicamente por experiências diretas de ensino e persuasões verbais. A relevância da autoeficácia docente para a formação dos professores, em particular, nos processos de formação inicial em educação física são discutidas.

Jogos escolares da rede pública do estado da bahia: análise das edições 2009 a 2017 / Bahia state public schools championship: analysis of editions from 2009 to 2017

RESUMO A partir da análise documental de 210 relatórios dos Jogos Escolares da Rede Pública da Bahia (JERP), este estudo teve por objetivo descrever a evolução histórica do JERP de 2009 a 2017, considerando as modalidades comuns e inovadoras ofertadas, número de escolares, número de escolas, número de professores e recursos financeiros descentralizados. Verificamos que as modalidades inovadoras foram numericamente superiores às modalidades comuns e apresentaram maior diversificação das práticas esportivas; o número de escolares, escolas e professores na primeira etapa dos jogos (dentro das escolas) foi superior a terceira etapa (regional), além de aumentar ao longo dos anos em ambas as etapas; e que o valor financeiro descentralizado tendeu a crescer no período histórico analisado. Concluímos que o JERP se apresenta como uma oportunidade dos alunos vivenciarem diferentes modalidades esportivas, entretanto esta oportunidade é ressaltada apenas na primeira etapa. Em relação aos recursos financeiros descentralizados para o JERP, parece não haver planejamento prévio com relação a proporção destes recursos e a proporção de escolares participantes deste programa. Sugerimos maior concentração de recursos em competições locais do que estaduais, uma vez que atendem mais crianças e jovens e favorecem a valorização da diversificação de modalidades e respeito à cultura esportiva local.

ABSTRACT Based on the documentary analysis of 210 reports of the Scholars Games of the Bahia State Public System (JERP), this study aimed to describe the historical evolution of the JERP from 2009 to 2017 considering the common and innovative modalities offered, number of school children, number of schools , number of teachers and decentralized financial resources. It was verified that the innovative modalities were numerically superior to the common modalities and presented a greater diversification of the sports practices; the number of students, schools, and teachers in the games' first stage (inside of the schools) was superior to the third stage (regional), besides increase over the years in both stages; and that the decentralized financial value tended to grow in the historical period analyzed. It is concluded that the JERP presents itself as an opportunity for students to experience different sports modalities, however this opportunity is highlighted only in the first stage. Regarding the decentralized financial resources for the JERP, there seems to be no prior planning regarding the proportion of these resources and the proportion of students participating in this program. We suggest a higher concentration of resources in local rather than state competitions, since the local competitions serve more children and young people and support the modalities diversification and respect to the local sports culture.

Elementary school physical activity opportunities and physical fitness of students: A statewide cross-sectional study of schools.

BACKGROUND: Using a cross-sectional design, we assessed the relationship between the time schools provide for physical activity and the proportion of students achieving a healthy aerobic capacity or body mass index. METHODS: In 2013-2014, physical education and grade-level teachers from 905 of 1,244 Georgia elementary schools provided survey data about the frequency and duration of physical activity opportunities offered before, during, and after school. Log-binomial models related the weekly physical activity minutes provided by schools to the proportion of children in the FitnessGram healthy fitness zone for aerobic capacity or body mass index while adjusting for school characteristics and demographics. RESULTS: During-school physical activity time was not associated with student fitness, but schools with before-school physical activity programs had a moderately higher prevalence of healthy aerobic capacity (prevalence ratio among girls: 1.06; 99% confidence interval: 1.00-1.13; prevalence ratio among boys: 1.03; 99% confidence interval: 0.99-1.08). Each additional 30 minutes of recess per week was associated with no more than a 3%-higher proportion of students with healthy body mass indexes (prevalence ratio among girls: 1.01; 99% confidence interval: 1.00-1.03; prevalence ratio among boys: 1.01; 99% confidence interval: 0.99-1.03). CONCLUSIONS: The amount of physical activity time provided by schools is not strongly associated with school-aggregated student fitness. Future studies should be designed to assess the importance of school-based physical activity time on student fitness, relative to physical activity type and quality.

Are school-based physical activity interventions effective and equitable? A meta-analysis of cluster randomized controlled trials with accelerometer-assessed activity.

The prevalence of childhood obesity is increasing at epidemic rates globally, with widening inequalities between advantaged and disadvantaged groups. Despite the promise of schools as a universal context to access and influence all children, the potential of school-based interventions to positively impact children's physical activity behaviour, and obesity risk, remains uncertain. We searched six electronic databases to February 2017 for cluster randomized trials of school-based physical activity interventions. Following data extraction, authors were sent re-analysis requests. For each trial, a mean change score from baseline to follow-up was calculated for daily minutes of accelerometer-assessed moderate-to-vigorous physical activity (MVPA), for the main effect, by gender, and by socio-economic position (SEP). Twenty-five trials met the inclusion criteria; 17 trials provided relevant data for inclusion in the meta-analyses. The pooled main effect for daily minutes of MVPA was nonexistent and nonsignificant. There was no evidence of differential effectiveness by gender or SEP. This review provides the strongest evidence to date that current school-based efforts do not positively impact young people's physical activity across the full day, with no difference in effect across gender and SEP. Further assessment and maximization of implementation fidelity is required before it can be concluded that these interventions have no contribution to make.

Children's Improvement of a Motor Response during Backward Falls through the Implementation of a Safe Fall Program.

The World Health Organization has warned that, in children, the second cause of death from unintentional injuries are falls. The objective of this study was to analyze the motor response of primary schoolchildren when a backwards fall occurs. These analyses occurred before and after interventions of the Safe Fall program, which aims to teach safe and protected ways of backward falling. A quasi-experimental research design was used, with a sample of 122 Spanish (Sevillian) schoolchildren in the 10⁻12 age bracket. The INFOSECA ad-hoc observation scale was used for data collection: this scale registers 5 essential physical reactions throughout the process of a safe and protected backwards fall. After that, a number of descriptive, correlational and contrast statistics were applied. The value used in the McNemar test to establish statistical significance was p < 0.05. Results showed that over 85% of students had developed the competence to correctly perform all five physical motions that allow for a safer backward fall. The teaching of safe and protected techniques for falling backwards in child population in Primary Education is possible through the implementation of the Safe Fall program in Physical Education classes, which can help making falls safer, diminishing the risk and severity of the injuries they cause.

The Effect of Organized Versus Supervised Recess on Elementary School Children's Participation, Physical Activity, Play, and Social Behavior: A Cluster Randomized Controlled Trial.

BACKGROUND: Recess strategies that increase children's physical activity and contribute to the daily 60 minutes of moderate to vigorous physical activity (MVPA) are recommended. METHODS: A cluster randomized trial was conducted to examine the effect of supervised versus organized recess on children's participation, physical activity, play, and social behavior. In supervised recess, children were free to play, and physical education (PE) teachers ensured safety. In organized recess, PE teachers provided challenging tasks. Data were collected using systematic observation. Children (N = 281; 8-10 y) from 14 schools received a 6-day parkour unit in PE and three opportunities to participate in a 20-minute parkour recess. Schools were randomized over a supervised and organized parkour recess condition. RESULTS: The majority of children participated in parkour recess (range = 56%-85%), with more boys participating in all 3 organized versus supervised recess sessions (57% vs 35%, P = .01). Boys spent more time in MVPA during organized recess (79% vs 71%, P = .02). Boys and girls spent more time in activity games during organized recess (59% vs 46%, P = .01; 59% vs 47%, P = .001). CONCLUSION: Organized recess attracted more children and made the largest contribution to daily MVPA.

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.

Еvaluation of health status of children attending primary schools with different organization of physical education lessons

Background: The mandatory swimming lesson in primary schools, equipped with swimming pools, was introduced without studying of its health-saving effectiveness. Objective: The purpose of this study was to evaluate the health status of pupils studying in schools with different organization of physical education lessons. Materials and Methods: Cross-sectional study was organized in two schools with different organization of physical education lessons. The experimental group (E) consisted of 408 children of 1­4 year of study (210 girls and 198 boys) who during one of the lessons of physical education were engaged in swimming in the school basin. Control group (C) consisted of 279 primary school children (210 girls and 156 boys) from a neighboring educational institution where all physical education lessons were organized in the gym. The health status was evaluated using classical method of complex assessment of the state of health with the subsequent assignment of each child to one of the health groups. Results: In result of evaluation of state of health there was established that among pupils from E group the proportion of boys with harmonious anthropometric parameters is higher (p<0.05), children from this group are stronger than C group (p<0.05). The prevalence of diseases of the musculoskeletal system and the eyes among pupils in E group was lower comparing to the C group (p<0.01). In the E group percentage of pupils assigned to health group I was significantly higher and lower for the II (children with some morpho-functional abnormalities) comparing to the C group. Conclusion: Organization of one mandatory swimming lesson per week in primary school has positive effect on health status of children.