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This systematic review and meta-analysis aimed to evaluate the effectiveness of interventions through Physical Education (PE) exercises on bone mineral content (BMC) and density (BMD) of children and adolescents. The research was conducted using the online electronic databases PubMed, Science Direct, Web of Science and Scopus (March 2021). The analysis was restricted to school-based studies that examined the effect of PE interventions on BMC and BMD in schoolchildren (<18 years-old). Standardized mean differences (SMD) with 95% confidence interval (CI) and random effects models were calculated. The heterogeneity and inconsistency of the studies was estimated using Cochran's Q-statistic and I 2 , respectively. Twenty-two studies with 2,556 participants were selected. PE interventions were associated with a significant increase in BMC (SMD=1.348; 95%CI, 1.053-1.643) and BMD (SMD=0.640; 95%CI, 0.417-0.862). Femoral neck subgroup analysis indicate an increase in BMC for boys (SMD=1.527; 95%CI, 0.990-2.065) and girls (SMD=1.27; 95%CI, 0.782-1.767), and in BMD for boys (SMD= 0.518; 95%CI, 0.064-0.972) and girls (SMD=0.817; 95%CI, 0.349-1.284). Finally, increases are reported in the lumbar spine BMC for boys (SMD=1.860; 95%CI, 1.018-2.700) and girls (SMD=1.275; 95%CI, 0.782-1.767). This meta-analysis provides insights into the effectiveness of interventions aimed at including physical exercise in PE on bone mass, suggesting that increasing the proportion of curriculum time allocated to PE may improve students' BMD and BMC, especially in the femoral neck and lumbar spine.

Introduction: Hosting mega-sport events can be an important political strategy for promoting the sport. Brazil had a decade with different mega-sport events, so we want to highlight how many Brazilian young people have been practicing sports throughout this period. Methods: This secular trend was attended by over 37,000 young people during January 2007 and December 2018. This data is part of a project aimed at mapping physical fitness, growth indicators and sports practice of young Brazilians. Data were described using descriptive statistics techniques. Results: The girls' sport practice was always smaller than boys, despite the decrease in the practice of the boys in 2012. We note a substantial upsurge in the years before the Olympic Games. Especially in Brazil, the years before Rio's Olympic Games happened the men's soccer world cup and men's confederations cup. In this year's we note a substantial upsurge in sports practice. However, soccer, futsal (boys) and volleyball (girls) are the most practiced sports. Implications: From these results, the strategies for promoting sports can be revaluated. Understanding which sports are the most and least practiced by children is a first step towards directing policies for the promotion and democratization of sports, regardless of the sport.

Since 1994, the Projeto Esporte Brasil (PROESP-Br) battery tests has been used to evaluate health- and skill-related physical fitness among aged 6-17 Brazilian schoolchildren. The aim of this study was to delineate the Brazilian children and youth’s physical fitness profile from a systematic review over studies that used the PROESP-Br proposal. The search was carried at PubMed, ScienceDirect, Lilacs, SciELO and Google Scholar. Original studies published between 1994 and 2017 about physical fitness (health and/or motor performance) with schoolchildren (children and/or adolescents) that used the PROESP-Br battery test were included. A total of 13.582 participants  were evaluated to health-related fitness and 276 to skill-related fitness from 18 included studies. The methodological quality was evaluated using the Newcastle-Ottawa quality assessment scale adapted version. The results show that 27-30% of youngsters are at health “risk zone” for Body Mass Index (BMI), 70% for cardiorespiratory fitness (CRF), 50% and 65% for flexibility (FLEX) and muscular strength (MST), respectively. The data concerning skill-related fitness were inconsistent. In summary, the results suggest that Brazilian children and adolescents have low cardiovascular health level (BMI/CRF), mainly regarding CRF, and low muscle health level (FLEX/MST). We emphasize that the lack of studies regarding skill-related fitness, make it impossible to describe the profile of the components of this construct.

RESUMO: a inclusão de alunos com deficiência é prevista em lei e manter boas estruturas físicas e pedagógicas na escola é um ponto fundamental para que o acesso possa acontecer. A Educação Física faz parte desta inclusão e pode proporcionar grandes melhoras na qualidade de vida de alunos com deficiência. Este estudo teve como objetivo compreender as percepções do aluno com deficiência a respeito das aulas de Educação Física. Para isso foi realizada uma pesquisa de natureza qualitativa utilizando para coleta de dados uma entrevista semiestruturada a qual foi gravada, transcrita e posteriormente analisada. A amostra foi constituída de 20 alunos com deficiência matriculados em escolas regulares da cidade de Santos Dumont -MG. A partir das entrevistas, destacou-se a percepção do aluno com deficiência a respeito da Educação Física escolar; o entendimento deles quanto ao conceito de qualidade de vida; as melhoras proporcionadas na qualidade de vida através da Educação Física; as facilidades e as dificuldades nas aulas; e as questões concernentes à relação aluno/professor e aluno/aluno. Os resultados dessa pesquisa podem auxiliar a comunidade escolar e o professor de Educação Física a melhorarem a inclusão nas escolas regulares. Além disso, as percepções dos alunos com deficiência sobre as aulas podem ajudar o professor na busca de um ambiente melhor com aulas que atendam a todos e proporcionem uma melhor qualidade de vida. PALAVRAS-CHAVE:Educação Especial. Educação Física. Pessoas com Deficiência. Qualidade de Vida. ABSTRACT:The inclusion of disabled students is based on the law and the adaptation of physical and pedagogical structure at school represents a key point in order to make the access happen. Physical education is a part of the social inclusion and can provide great improvements in quality of life of students with disabilities. This research aimed to verify the perception of the student with disabilities on physical education classes. Therefore, a qualitative research was carried out, using a semi structured interview to 1 http://dx