Levels of inflammatory markers are differentially expressed in sickle cell anemia and sickle cell trait.

Although sickle cell anemia (SCA) is related to inflammation, the profile of inflammatory markers in sickle cell trait (SCT) is poorly studied. This is a cross-sectional study of inflammatory biomarkers carried out involving adults with SCA in steady state, SCT and controls. The SCA group had higher levels of lactato dehydrogenase, IL-1ß, IL-6, IL-10, and tumor necrosis factor alpha than the others, while the SCT group had similar levels to control group. In addition, SCA group had lower IL-8/IL-10 and soluble triggering receptor expressed on myeloid cells-1/IL-10 ratios. These findings indicate that individuals with SCT do not have a chronic inflammatory profile and reinforce that cytokines are involved in the maintenance of the inflammatory state in SCA.

Correlates of Physical Activity in Brazilian Older Adults: The National Health Survey 2019.

Engagement in physical activity (PA) depends on intrapersonal, interpersonal/cultural, organizational, physical environment and political factors. Considering that it is important to understand this phenomenon in different populational contexts, this study aimed to investigate the factors related to engagement in PA according to sociodemographic aspects, eating habits, self-rated health, activities of daily living, noncommunicable diseases, mental health and public policies in Brazilian older people. This study had a cross-sectional design and used data from the Brazilian National Health Survey, 2019. Sample size was composed of 22,726 participants, aged 60 years or older, of both sexes, and all the data were collected by interview/questionnaire. According to the adjusted logistic regression, males were more active than females (OR = 1.59 (95% CI 1.40-1.80)), and those living in northern and northeastern Brazil were more likely to be inactive when compared to the southeastern region. Moreover, those with a higher educational level and income (OR = 1.36 (1.06-1.73) and OR = 1.60 (1.22-2.11)); with healthy eating habits (OR = 1.05 (1.03-1.06)); with positive self-rated health (OR = 2.67 (95% CI 1.51-4.71)); with better functional autonomy (OR = 1.22 (1.17-1.27)); and who reported that there was some public place (square, park, closed street, beach) to go for a walk, exercise or practice sport close to their home were more likely to be active (OR = 1.49 (1.34-1.67)). Sociodemographic factors, healthy eating habits, positive self-rated health, higher functioning in activities of daily living and living close to places where PA is practiced were associated with regular engagement in PA (i.e., ≥150 min/week).

Fatores associados à aderência em programa comunitário de atividade física em uma capital brasileira / Factors associated with adherence to the physical activity program in a Brazilian capital

Este trabalho tem como objetivo analisar os fatores associados à aderência em um Programa Comu-nitário de Atividade Física de uma capital do nordeste brasileiro. Trata-se de uma coorte retrospec-tiva, de base populacional. Foram analisados 2.616 registros de participantes, relacionando tempo de adesão à dezesseis covariáveis referente a dados sociodemográficos, estilo de vida, percepção de saúde e doenças referidas por diagnóstico clínico, entre 2004 e 2009. Foi utilizado estimador de sobrevida não-paramétrico Kaplan-Meier para caracterizar o grupo e estimar a aderência e o teste de logrank para comparar as categorias de cada covariável, utilizando p ≤ 0,20. Foram inseridas no modelo final de Cox àquelas que apresentaram valor de p ≤ 0,05, determinando a Razão de Chance (OR) da ade-rência com um intervalo de confiança de 95%. As análises foram realizadas no SPSS for Windows ® versão 22. Foi observado 97,4% casos de desistência e 2,6% de censura. Mantiveram chances de aderência "grupamento etário de 35-59 anos de idade" (OR = 1,839; IC95%: 1,625 ­ 2,083), "60 anos de idade ou mais" (OR = 1,197; IC95%: 1,080 ­ 1,325) e "estresse" (OR = 1,087; IC95%: 1,004 ­ 1,178). Apresentaram menores chances de aderência indivíduos que relataram lombalgia (OR = 0,887; IC95%: 0,810 ­ 0,972) e aqueles com renda entre um e três salários mínimos mensais (OR = 0,751; IC95%: 0,596 - 0,961). Assim, verifica-se baixa aderência nos primeiros meses de participação, em que adultos, idosos e participantes com estresse apresentam maiores chances de aderência, ao contrário dos lombálgicos e indivíduos menos abastados

This study aims to analyze the factors associated with adherence to a Community Physical Activity Program in a Brazilian northeastern capital. This is a retrospective, population-based cohort. We analyzed 2,616 participant records, relating adherence time to sixteen covariates related to sociodemographic data, life-style, health perception and diseases reported by clinical diagnosis, between 2004 and 2009. Kaplan-Meier non-parametric survival estimator was used to characterize the group and estimate adherence, and the logrank test was used to compare the categories of each covariate, using p ≤ 0.20. Those with a p value ≤ 0.05 were entered into the final Cox model, determining the odds ratio (OR) of adherence with a 95% confidence interval. The analyses were performed in SPSS for Windows ® version 22. 97.4% dropout cases and 2.6% censoring cases were observed. The odds of adherence were maintained for "age group 35-59 years" (OR = 1.839; 95%CI: 1.625 - 2.083), "60 years of age or older" (OR = 1.197; 95%CI: 1.080 - 1.325) and "stress" (OR = 1.087; 95%CI: 1.004 - 1.178). Individuals who reported low back pain (OR = 0.887; 95%CI: 0.810 - 0.972) and those with income between one and three minimum wages per month (OR = 0.751; 95%CI: 0.596 - 0.961) had lower odds of adherence. Thus, there is low adherence in the first months of participation, in which adults, the elderly, and participants with stress have a higher chance of adherence, unlike those with low back pain and less affluent individuals

Daily physical activity, human development index and insomnia in a representative sample of Brazilian adolescents: a cross-sectional analysis

ABSTRACT BACKGROUND: Although there is a growing body of research pointing towards the need to investigate how different movement behaviors, such as physical activity and sleep, influence each other, the joint relationship between these factors and insomnia has been little explored among adolescents in developing countries. OBJECTIVES: To investigate the association between daily physical activity and insomnia in a national sample of Brazilian adolescents, according to the Human Development Index (HDI) of each Brazilian region. DESIGN AND SETTINGS: Cross-sectional study on 102,072 Brazilian students aged 11 to 19 years, selected from all regions of the country. METHODS: Information on insomnia and physical activity was self-reported by adolescents. RESULTS: Our analyses revealed that girls who accumulated at least 60 minutes/day of physical activity on up to three days/week were less prone to present insomnia. This pattern of association was maintained only for those who lived in high HDI regions (odds ratio, 0.87; 95% confidence interval, 0.75-0.99). For boys, there was a positive association between the number of active days and protection against insomnia, especially for those who lived in high HDI regions. CONCLUSION: Even amounts of physical activity that were lower than the weekly guidelines, were associated with better sleep quality for Brazilian adolescents, especially girls, and even for those who lived in regions with greater social and economic vulnerability.

Structure for the practice of physical activities in Brazilian schools, Human Development Index and Basic Education Development Index: contributions to the Report Card Brazil / Estrutura para a prática de atividades físicas nas escolas brasileiras, Índice de Desenvolvimento Humano e Índice de Desenvolvimento da Educação Básica: contribuições para o Report Card Brasil

ABSTRACT The purpose of this study was to identify structures for the practice of physical activities (PA) in Brazilian Schools and relate them to the Human Development Index (HDI), Basic Education Development Index (IDEB) and quality indicators from the Report Card Brazil (RCB). This is a descriptive study that used secondary data from INEP-Brazil to identify and classify structures for the practice of PA in Brazilian schools based on the presence of "schoolyards", "sports courts" and "sporting materials", organized by elementary and high schools. Data were organized by Macroeconomic Region and related to HDI, IDEB and Report Card Brazil Quality Classification Criteria. Thus, for "Elementary School", positive and significant relationship was observed between HDI and the presence of "schoolyards" (r=0.53; p=0.004), "sports courts" (r=0.855; p<0, 01) and "sporting materials"(r=0.764; p<0.01), while for IDEB, values ​​followed the same logic, associated to the presence of "schoolyards" (r=0.475; p=0.01), "sports courts" (r=0.676; p<0.01) and "sporting materials" (r=0.535; p<0.01). For "High School", relationship was observed between HDI and the presence of "sports courts" (r=0.517; p<0.01) and "sporting materials" (r=0.499; p<0.01), while for IDEB, relationship was only observed with the presence of "sporting materials" (r=0.508; p<0.01). It could be concluded that the Northern and Northeastern regions of Brazil have schools with lower presence of structure for the practice of Physical Activity and that there is positive relationship of this structure with HDI, IDEB and quality indicators of the Report Card Brazil.

RESUMO O objetivo do estudo foi identificar as estruturas para atividades físicas (AF) nas escolas brasileiras e relacioná-las ao Índice de Desenvolvimento Humano (IDH), Índice de Desenvolvimento da Educação Básica (IDEB) e indicadores de qualidade do Report Card Brasil (RCB). Trata-se de estudo descritivo que utilizou dados secundários do INEP-Brasil para a identificação e classificação da estrutura para prática de AF nas escolas brasileiras, a partir da existência de "pátio", "quadras" e "materiais esportivos", organizadas por escolas do nível "fundamental" e "médio". Os dados foram organizados por Região Macroeconômica e relacionados com os Índices IDH, IDEB e os Critérios de Classificação de Qualidade do RCB. Assim, para o "Ensino Fundamental", verificou-se relação positiva entre o IDH e a existência de "pátio" (r=0,53; p=0,004), "quadra" (r=0,855; p<0,01) e material esportivo (r=0,764; p<0,01), o IDEB também apresentou relação positiva com a existência de "pátio" (r=0,475; p=0,01), "quadra esportiva" (r=0,676; p<0,01) e "material esportivo" (r=0,535; p<0,01). Para o "Ensino Médio", verificou-se relação entre o IDH e a existência de quadras (r=0,517; p<0,01) e materiais esportivos (r=0,499; p < 0,01), enquanto para o IDEB, apenas houve relação com a existência de materiais esportivos (r=0,508; p<0,01). Conclui-se que as Regiões Norte e Nordeste possuem escolas com menores frequências de estrutura para Atividade Física e que há relação positiva desta estrutura com o IDH, IDEB e classificação de qualidade RCB.

School physical activity and mental health in school-aged Brazilian adolescents: a systematic review / Atividade física e saúde mental em adolescentes brasileiros escolarizados: uma revisão sistemática

ABSTRACT The aim of this study was to identify evidence regarding associations between School Physical Activity (PA) and Mental Health (MH) in Brazilian school-aged adolescents. This is a systematic review study. Studies were selected in Portuguese and English and identified by a systematic search in six electronic databases: PubMed, Web of Science, SPORTDiscus / Ebsco, ScIELO, ERIC, and LILACS, which comprised publications until 2019. Inclusion criteria were: studies with cohort, descriptive, cross-sectional or qualitative design; performed with children and adolescents; studies that analyzed the relationship between PA and MH; studies that investigated adolescents who practiced PA in schools; studies carried out in Brazil; and studies that reached minimum of 60% of methodological quality criteria according to STROBE. Physical education, as curricular activity in basic education, has protective effect on MH in the school setting. In addition, more than 300 min/week of PA was positively associated with MH; while associations between PA and excessive TV time; social isolation; and body weight dissatisfaction were negatively associated. School PA is positively associated with MH as it promotes physical and psychological well-being, impacting on the reduction of insomnia rates, attenuating loneliness and improving physical appearance.

RESUMO Objetivou-se identificar a evidência quanto às associações entre atividade física (AF) e saúde mental (SM) em adolescentes escolarizados brasileiros. Trata-se de um estudo de Revisão Sistemática. Os estudos foram selecionados em português e inglês e identificados por meio de uma busca sistemática em seis bases de dados eletrônicas: PubMed, Web of Science, SPORTDiscus/Ebsco, ScIELO, ERIC, e LILACS, que compreendeu publicações até o final de 2019. Os critérios de inclusão foram: estudos com um desenho de coorte, descritivo de caráter exploratório, transversal, ou qualitativos; realizados com crianças e adolescentes; estudos que analisaram a relação entre AF e SM; estudos que investigaram adolescentes que praticavam AF nas escolas; estudos realizados no Brasil e os que obtiveram a pontuação mínima estabelecida de 60% conforme os critérios da qualidade metodológica do instrumento STROBE. A Educação Física oferecida no currículo da educação básica tem um efeito protetor sobre a SM no ambiente escolar. Além disso, mais de 300 min/semana de AF foi associado positivamente com a SM. Algumas associações foram negativas entre a AF e a SM, tais como: tempo excessivo de TV; isolamento social; insatisfação com o peso corporal. A AF escolar está associada positivamente à SM por promover bem-estar físico e psicológico, impactando na redução dos índices de problema de insônia, atenuando a solidão e melhorando a aparência física.

Physical activity level in overweight adolescents at school: a systematic review / Nível de atividade física em jovens escolarizados com excesso de peso: uma revisão sistemática

Abstract - The objective of this systematic review was to identify the association between overweight/obesity and level of physical activity in Brazilian children and adolescents in the school setting. For search strategy, the main reference databases (PubMed, LILACS, SciELO, SPORTDiscus, Web of Science, ERIC) were used. Baseline searches resulted in 3,265 potentially relevant titles (2,775 titles after removal of duplicate studies); 21 studies met all inclusion criteria and were included for analysis. Studies were carried out from 2007 to 2019; 47.6% of them were conducted in Southern Brazil, and only one study had nationwide approach. Prevalence from 5.4% to 21% was identified for overweight, 3.5% to 16.9% for obesity and 11.8% to 40.1% for overweight + obesity. According to results, 64.3% of overweight, 69.8% of obese and 37.7% of young overweight people were considered insufficiently active. The non-standardization of instruments to assess levels of physical activity and the lack of information regarding other Brazilian regions were classified as important limitations. The results reinforce the increase in the prevalence of overweight in Brazilian children and adolescents, and the high prevalence of physical inactivity among them. For every ten overweight children/adolescents, six are reported to be insufficiently active.

Resumo - O objetivo desta revisão sistemática foi identificar a associação entre excesso de peso, obesidade e nível de atividade física em crianças e adolescentes brasileiros, no ambiente escolar. A busca eletrônica foi realizada nas principais bases de dados de referência (PubMed, LILACS, SciELO, SPORTDiscus, Web of Science, ERIC). A pesquisas nas bases resultaram em 3265 títulos potencialmente relevantes (2775 títulos após análise duplicada); 21 estudos preencheram todos os critérios de inclusão e foram analisados. Os estudos foram realizados entre 2007 e 2019, 47,6% deles foram realizados no sul do Brasil, e apenas uma pesquisa foi realizada a nível nacional. Foi identificado prevalências de 5,4% a 21% para sobrepeso, 3,5% a 16,9% para obesidade e 11,8% a 40,1% para excesso de peso (obesidade + sobrepeso). De acordo com os resultados, 64,3% dos jovens com sobrepeso, 69,8% dos obesos e 37,7% daqueles com excesso de peso foram considerados insuficientemente ativos. A não padronização dos instrumentos para avaliar os níveis de atividade física e a pouca representatividade de outras regiões brasileiras foram classificadas como lacunas importantes. Os resultados reforçam o aumento da prevalência de excesso de peso em crianças e adolescentes no Brasil, e a alta prevalência de inatividade física entre estes jovens. A cada dez jovens acima do peso, seis são insuficientemente ativos.

Physical activity, TV viewing, and human development index in Brazilian adolescents: Results from the National School Health Survey

Abstract Aim: This study aimed to examine the association between physical activity (PA) indicators and TV viewing as a function of the Human Development Index (HDI). Method: This cross-sectional study was based on data from the National School Health Survey, which was composed of 102,072 students (14.28±1.03; 51.3% girls). Total PA, active commuting to school (ACS) and TV viewing were assessed by questionnaires and classified through a gradual scale ranging from "F" (low) to "A+" (high). The correlation between total PA, ACS, TV viewing and HDI was verified by Spearman's Correlation and presented in rs. Results: HDI was positively associated with total PA [girls: rs = 0.572 (p < 0.001); boys: rs = 0.843 (p < 0.001)] and ACS [girls: rs = 0.433 (p < 0.001); boys: rs = 0.554 (p < 0.001)]; while a negative correlation was found between HDI and TV viewing [girls: rs = -0.330 (p < 0.001); boys: rs = -0.348 (p < 0.001)]. Conclusions: Brazilian adolescents from states with higher HDI were more active and spent more time watching TV than their counterparts from states with lower HDI.

Influence of overweight on functional capacity of physically active older women / Influência do sobrepeso na capacidade funcional de mulheres idosas fisicamente ativas

Abstract Aging comprises a dynamic and progressive process, characterized by physiological and functional changes. Among these changes, increase in body fat is considered relevant, since it can leads to impaired physical fitness and augmented cardiometabolic risks. Considering this, the objective of this study was to evaluate the influence of overweight on functional capacity of physically active older women. A field survey was performed with 24 older women who practiced physical exercise. Participants were submitted to anamnesis, anthropometric measures (i.e., body mass and height); the Senior Fitness test; sit and reach flexibility test; and handgrip strength test. Pearson's correlation test and multivariate logistic regression were used to verify the association between overweight and functional capacity. It was observed that hip flexibility (R=-0.494, p=0.014) and flexibility of the lower limbs (i.e., sit and reach test) showed negative correlation with the body mass index (R=-0.446, p=0.02); and after the multivariate logistic regression, negative correlation of lower limbs flexibility (B=-0,035, p=0,014) and the body mass index was observed. Thus, higher the body mass index among participants, lower hip flexibility they presented.

Resumo O envelhecimento compreende um processo dinâmico e progressivo. Caracteriza-se por alterações fisiológicas e funcionais, sendo a modificação na composição corporal com o acréscimo de gordura corpórea considerada relevante, podendo ocasionar comprometimento da aptidão física e alterações cardiometabólicas. O objetivo deste estudo foi avaliar a influência do sobrepeso na capacidade funcional em idosas praticantes de exercício físico. Foi realizada uma pesquisa de campo correlacional com 24 idosas praticantes de exercício físico. Todas as idosas foram submetidas a anamnese, analise antropométrica com avaliação da massa corporal e estatura, capacidade funcional com a bateria de testes de Rikli e Jones (Sênior Fitness test), flexibilidade com o banco de Wells e força de prensão manual com o teste de preensão manual. Utilizou-se o teste de correlação de Pearson e a regressão logística multivariada pelo método Stepwise para verificar a associação entre sobrepeso e capacidade funcional. Observou-se que a flexibilidade de Quadril (R=-0,494, p=0,014) e a flexibilidade dos membros inferiores pelo banco de Wells (R=-0,446, p=0,02) apresentaram forte correlação negativa com o índice de massa corporal (IMC). Após a regressão logística multivariada, percebeu-se uma forte correlação negativa com a flexibilidade do quadril (B=-0,035, p=0,014). Assim, a flexibilidade do quadril entre as idosas ativas com sobrepeso reduziu com o aumento do IMC.

What is the contribution of each physical activity domain to total physical activity in adolescents? / Qual a contribuição de cada domínio da atividade física para atividade física total em adolescentes?

Abstract The present study aimed to verify the contribution of different physical activity domains to "total physical activity" in Brazilian adolescents. This is a cross-sectional study using secondary data from the third edition of the National School Health Survey - PeNSE, 2015. The sample consisted of 100,497 adolescents of both sexes enrolled in the 9th grade of elementary schools. A linear regression model was used to verify how much each domain contributed to total physical activity, considering gender, type of municipality and region. The domain with the largest contribution to "total physical activity" regardless of sociodemographic and environmental variables was "extra-school physical activity" (R2 = 0.60), followed by "active commuting" (R2 = 0.34), and finally "Physical Education classes" (R2 = 0.23). The contribution of the different domains varied by gender, type of municipality and region, and it was concluded that "extra-school physical activity" make the greatest contribution to "total physical activity", followed by "active commuting" and "Physical Education classes". In addition, variation was observed in the contribution of domains by gender, type of municipality and region.

Resumo O presente estudo teve como objetivo verificar a contribuição dos diferentes domínios da atividade física na "atividade física total" em adolescentes brasileiros.Trata-se de estudo transversal utilizando dados secundários oriundos da terceira edição da Pesquisa Nacional de Saúde do Escolar - PeNSE, 2015. A amostra foi constituída por 100.497 adolescentes de ambos os sexos cursando o 9° ano do Ensino Fundamental. Utilizou-se um modelo de regressão linear a fim de averiguar o quanto cada domínio contribuiu para a atividade física total, considerando o sexo, tipo de município e região. O domínio que apresentou maior contribuição para "atividade física total" independentemente das variáveis sociodemográficas e ambientais foram as "atividades físicas extraescolares" (R2= 0,60), seguido do "deslocamento ativo" (R2= 0,34), e por fim as "aulas de Educação Física" (R2= 0,23). A contribuição dos diferentes domínios apresentou variações por sexo, tipo de município e região. Conclui-se que as "atividades extraescolares" apresentam a maior contribuição para a "atividade física total", seguido do "deslocamento ativo" e das "aulas de Educação Física". Além disso, verifica-se uma variação na contribuição dos domínios por sexo, tipo de município e região.

Who are the Brazilian adolescents most actives during commuting to school? a population-based study

Abstract Aims: 1) to identify the prevalence of active commuting to school (ACS) among Brazilian regions; and 2) to determine associated factors related to ACS in this population. Methods: Cross-sectional study comprising 16,493 adolescents (mean age 14.09±2.12 years). The data comes from the National School Health Survey (2015), and the information was collected by a self-reported questionnaire. Logistic regression models were performed to identify correlates of ACS. Results: Adolescents who live in the Southeast are more prone to have ACS compared to those who live in other regions. Do not have motor vehicles been positively associated with ACS [girls: 2.04 (1.72;2.42); boys 1.85(1.63;2.10)]. Those whom self-reported white was less prone to have ACS compared to their peers from other ethnicities. Those enrolled in private schools [girls: 0.43(0.34;0.54); boys (0.45(0.39;0.53)] and schools setting in rural area [girls: 0.38(0.25;0.57); boys: 0.51(0.37;71)] are less prone to show ACS. In addition, adolescents who accumulated less active time during physical education classes [girls: 0.80(0.66;0.97)] and extracurricular shifts [boys: 0.69(0.60;0.80)] were less prone to have an ACS, compared to their most active peers. Lastly, girls who spent ≤ 2 hours presented fewer odds to have an ACS [0.75(0.63;0.90)]. Conclusions: ACS was most prevalent among those who live in the Southeast region and seems to be negativity associated with the socioeconomic level. Moreover, less active adolescents during both school and leisure time may be more prone to have passive travel go/from school.

Cardiorespiratory fitness in children and adolescents / Aptidão cardiorrespiratória em crianças e adolescentes

Abstract Cardiorespiratory fitness is an important health status indicator. The purpose of this study was to verify the cardiorespiratory fitness according to age group and gender in children and adolescents from Sergipe, Brazil. It is a crosssectional study with sample consisting of 195 adolescents of both genders with mean age of 11.75 ± 3.0 years. For the characterization of participants, a questionnaire with age and gender identification designed by researchers was used. Subsequently, participants were submitted to anthropometric evaluation in order to estimate the maturational stage by means of the peak height velocity (PHV). The 20meter back-and-forth test was used to estimate cardiorespiratory fitness. Two-way ANOVA was applied with sample divided into two groups ("up to 13 years" and "above 13 years"). Polynomial contrast was used to identify the type of tendency for cardiorespiratory fitness, and simple contrast for multiple comparisons. All procedures were performed using SPSS version 22.0 software, considering 5% significance level. In the "over 13 years" group, there was a significant effect on the cardiorespiratory capacity behavior according to "gender" [F(1, 45) = 5.54, p = 0.02, r = 0.33] and "age" [F(4.45) = 3.37, p = 0.02, r = 0.48]. The simple contrast identified increased cardiorespiratory fitness behavior in relation to age groups of 15 and 16 year when compared to the age group of 14 years. It was concluded that gender and age positively influence cardiorespiratory fitness from the maturational reference age in the study group.

Resumo Aptidão cardiorrespiratória é um importante indicador da condição de saúde. Objetivou-se verificar a capacidade cardiorrespiratória, conforme grupo etário e sexo, em crianças e adolescentes do Estado de Sergipe. Trata-se de um estudo com delineamento transversal. A amostra foi composta por 195 adolescentes de ambos os sexos com média de idade de 11,75±3,0 anos. Para a caracterização dos participantes, utilizou-se um questionário com dados sociodemográficos. Aplicou-se uma avaliação antropométrica, de forma a estimar o estágio maturacional por meio do pico de velocidade de crescimento (PVC) e o teste de vai-e-vem de 20 metros para a estimativa da capacidade cardiorrespiratória. ANOVA two-way foi aplicada com amostra dividida em dois grupos ("até 13 anos" e "acima de 13 anos"). Foi aplicado contraste polinomial para identificar o tipo de tendência para a aptidão cardiorrespiratória, e contraste simples para comparações múltiplas. Todos os procedimentos adotaram p ≤ 0,05 e utilizaram o software SPSS versão 22.0. No grupo etário "acima dos 13 anos", encontrou-se efeito significativo no comportamento da capacidade cardiorrespiratória conforme "sexo" [F(1, 45) = 5,54, p = 0,02, r=0,33] e "idade" [F(4, 45)= 3,37, p = 0,02, r=0,48]. O contraste polinomial revelou tendência linear para o VO2 em relação à idade de corte de 13 anos (p=0,04). O contraste simples identificou comportamento crescente da capacidade cardiorrespiratória em relação aos grupos etários de 15 e 16 anos quando comparados ao grupo de 14 anos. Conclui-se que o sexo e a idade influenciam positivamente na capacidade cardiorrespiratória a partir da idade de referência maturacional.

Flexibility in Brazilian children and adolescents: a systematic review / Flexibilidade em crianças e adolescentes brasileiros: uma revisão sistemática

Abstract Flexibility is a health-related physical fitness component that has its importance related to the maintenance of functional independence and achievement of activities of the daily living. This systematic review aims to analyze the existing evidence in the literature regarding physical capacity flexibility in Brazilian children and adolescents. Searches were conducted in the Virtual Health Library, Scientific Electronic Library Online, Sportdiscus databases through the EBSCOhost and Pubmed platform. There were 89,553 articles, of which 69,197 were excluded for duplicity, 20,124 for the title, 160 for the abstract, 56 after a full analysis of the article, remaining 16 articles for the qualitative analysis. Of these, from the reading of references, 57 titles partially eligible for the review were identified, and after the application of the eligibility criteria, there were only 18 for the qualitative analysis. Of the 34 studies included for the qualitative analysis, 25 studies were excluded and nine were included in the review. All articles presented the cross-sectional design and used the sit-and-reach test to assess flexibility. It was evidenced that: a) flexibility has been treated as co-adjuvant in studies with children and adolescents; b) although females have absolute flexibility values greater than the opposite sex, males have higher frequency of subjects that meet the health classification criteria in this variable; c) there is greater prevalence of the use of FITNESSGRAM and PROESP-BR reference standards.

Resumo A flexibilidade é um componente da aptidão física relacionada à saúde que tem importância relacionada à manutenção da independência funcional e realização das atividades da vida diária. Esta revisão sistemática tem como objetivo analisar a evidência existente na literatura quanto a capacidade física flexibilidade em crianças e adolescentes brasileiros. As buscas foram realizadas nas bases de dados Biblioteca Virtual em Saúde, Scientific Eletronic Library Online, Sportdiscus, através da plataforma EBSCOhost e Pubmed. Rastreou-se 89.553 artigos, dos quais 69.197 foram excluídos por duplicidade, 20.124 pelo título, 160 pelo resumo, 56 após análise integral do artigo e restaram 16 para a análise qualitativa. Destes, a partir da leitura das referências foram identificados 57 títulos parcialmente elegíveis para a revisão, após a aplicação dos critérios de elegibilidade restaram apenas 18 para a análise qualitativa. Dos 34 estudos inclusos para a análise qualitativa, 25 foram excluídos e nove estudos foram incluídos na revisão. Todos os artigos apresentaram delineamento transversal e utilizaram o teste de sentar e alcançar para avaliar a flexibilidade. Ficou evidenciado que: a) a flexibilidade tem sido tratada como coadjuvante nos estudos com crianças e adolescentes; b) embora o sexo feminino tenha valores absolutos de flexibilidade maiores que o sexo oposto, o sexo masculino tem maior frequência de sujeitos que atingem os critérios de classificação de saúde, nesta variável; c) há uma maior prevalência do uso dos padrões de referência do FITNESSGRAM e da PROESP-BR

School environment and practice of accumulated physical activity in young Brazilian students / Ambiente escolar e prática de atividade física acumulada em jovens brasileiros escolarizados

Abstract The aim of this study was to verify the association between school environment and accumulated physical activity in Brazilian adolescents. This is a study with secondary data from sample 1, from the third edition of the National School Health Survey, a study carried out with 102.072 children and adolescents enrolled in the ninth school grade. Questions about characteristics of the school environment and the offer of opportunities for physical activity practices were addressed, focusing on information regarding the structure for physical activity and about the regular practice of accumulated physical activities. Variables were organized from the structure of schools and opportunities for the practice of physical activities, while accumulated physical activity was used as the outcome variable. Data were analyzed from a binary logistic regression model, organized in crude and adjusted models, with a significance level of 5%. Data were analyzed from SPSS for Windows, version 22.0. Results indicate that, from the adjustment of variables, there was an association between the practice of accumulated physical activity and the existence of a sports court under conditions of use (OR=1.22, 95%CI=1.18-1.26), or presence of courtyard for use of physical education classes (OR=1.04, 95%CI=1.01-1.06). Association between the offer of varied physical activities, except for physical education classes, and the practice of accumulated physical activity (OR=1.05, 95%CI=1.02-1.08) was identified. Existence of a sports court/courtyard in schools and the offer of extracurricular physical activities are associated with the practice of accumulated physical activity in young Brazilian students.

Resumo Objetivou-se verificar a associação entre ambiente escolar e atividade física acumulada em adolescentes brasileiros. Estudo com dados secundários da "Amostra 1" da terceira edição da Pesquisa Nacional de Saúde do Escolar, com 102072 crianças e adolescentes matriculados no nono ano do Ensino Fundamental. Foram abordadas questões sobre características do ambiente escolar e a oferta de oportunidades de práticas de atividade física, com foco nas informações sobre a estrutura da atividade física e sobre a prática regular de atividades físicas acumuladas. As variáveis foram organizadas a partir da estrutura das escolas e oportunidades para a prática de atividades físicas, enquanto a atividade física acumulada foi utilizada como variável desfecho. Os dados foram analisados a partir de um modelo de regressão logística binária, organizado em modelos brutos e ajustados, com nível de significância de 5%. Os dados foram analisados no SPSS for Windows, versão 22.0. Os resultados indicam que, a partir do ajuste das variáveis, houve associação entre a prática de atividade física acumulada e a existência de quadra poliesportiva sob condições de uso (OR=1,22; IC95%=1,18-1,26), ou presença de pátio para uso de aulas de educação física (OR=1,04; IC95%=1,01-1,06). Foi verificada associação entre a oferta de atividades físicas variadas, exceto as aulas de educação física, e a prática de atividade física acumulada (OR=1,05; IC95%=1,02-1,08). A existência de quadra de esportes/pátio nas escolas e a oferta de atividades físicas extracurriculares estão associadas à prática de atividade física acumulada em jovens estudantes brasileiros.

Simultaneous Health Risk Behaviors in Adolescents Associated with Higher Economic Class in the Northeast of Brazil.

DESIGN: The social, cultural, and economic context can be an important variable in the perception and adoption of risk behaviors in adolescents. OBJECTIVE: The purpose of this study was to identify the prevalence of simultaneous health risk behaviors and associated socioeconomic factors in adolescents living in the metropolitan region of Aracaju, State of Sergipe, Brazil. METHODS: The sample consisted of 2,207 high school students aged 13-18 years. The risk behaviors measured were "low levels of physical activity," "excessive daily TV time," "high consumption of alcoholic beverages on a single occasion," "involvement in fights," "smoking cigarettes," "carrying firearms," and "marijuana consumption." Information was obtained through self-administered questionnaire. RESULTS: Considering the results, it was observed that female adolescents and those aged up to 16 years were less likely to have two or more health risk behaviors compared to males and those aged 17 years or more, respectively. It was also found that both high- and middle-income level adolescents had higher prevalence of having two or more health risk behaviors. CONCLUSIONS: It was concluded that male adolescents older than 16 years with better socioeconomic level were more exposed to the simultaneous presence of several health risk behaviors.

Length of stay of elderly in a Community Physical Activity Program and Associated Factors / Permanência de idosos em um Programa Comunitário de Atividade Física e fatores associados

Abstract The registration or insertion of older adults in Community Physical Activity Programs does not guarantee their stay over time. The purpose of this study was to analyze the length of stay of elderly in a Community Physical Activity Program and associated factors. This epidemiologic observational study of retrospective cohort performed in Aracaju City, Brazil, included a sample of 526 older adults (477 females) aged 66.4 ± 5.4 years. To characterize the profile and length of stay of individuals, descriptive statistics was used. To analyze the length of stay, the Kaplan-Meier non-parametric survival, estimator was used. To verify the association between variables in the observed time, the Cox regression model was applied. Inverse ratio equation (1/OR) was used to facilitate the understanding of significant values when necessary. In all analyses, 95% confidence interval and p≤0.05 were used. In the first three months, stay rate of 58.1% (95% CI = 54.6 - 61.3) was observed, with a risk estimative = 41.82%. Females presented a 45% chance of stay (OR = 0.69; 95% CI = 0.51 – 0.93) and individuals identified with osteoporosis had 32% more chances of stay (OR = 0.74, 95% CI, = 0.60-0.91). Only 1% of subjects remained until the end of the cohort. The stay rate was low throughout all series; the period with higher quitting rates was the 3rd and the 12th months, being associated with the female stay sex and undiagnosed osteoporosis.

Resumo A matrícula ou inserção de idosos em Programas Comunitários de Atividade Física não garante sua permanência ao longo do tempo. Objetivou-se analisar o tempo de permanência em idosos participantes de um Programa Comunitário de Atividade Física e seus fatores associados. Estudo observacional epidemiológico de coorte retrospectiva, realizado no Nordeste do Brasil, com amostra de 526 idosos (477 do sexo feminino), apresentando 66,4 ± 5,4 anos. Para caracterização do perfil e permanência da amostra foi utilizado estatística descritiva. Para analisar o tempo de permanência utilizou-se o estimador de sobrevivência não paramétrico Kaplan-Meier. Para verificar a associação entre as variáveis no tempo observado foi aplicado o modelo de regressão de Cox. Utilizou-se a análise inversa (1/OR) para facilitar a compreensão dos valores significativos quando necessário. Em todas as análises foi utilizado o intervalo de confiança de 95% e p≤0,05. Os primeiros três meses apresentaram uma taxa de permanência de 58,1% (IC95% = 54,6 – 61,3), com Estimativa de Risco = 41,82%. O sexo feminino apresentou chance de permanência de 45% (OR = 0,69; IC95% = 0,51 – 0,93) e os sujeitos identificados com osteoporose apresentaram 32% mais chances de permanência (OR = 0,74; IC95% = 0,60 – 0,91). Apenas 1% dos sujeitos permaneceram até o fim da coorte. A taxa de permanência foi baixa ao longo da série; O período onde houve maior desistência foi o 3º e o 12º mês, estando associados à permanência o sexo feminino e osteoporose não diagnosticada.

Association between physical activity level and consumption of fruit and vegetables among adolescents in northeast Brazil / Associação entre prática de atividade física com consumo de frutas, verduras e legumes em adolescentes do nordeste do Brasil

OBJECTIVE: To determine the association between low levels of physical activity and consumption of fruits and vegetables among adolescents. METHODS: This cross-sectional study included 2,057 adolescents aged 13 to 18 years from the city of Aracaju, Northeastern Brazil. We analyzed the level of physical activity, consumption of fruits and vegetables by standardized and validated questionnaires. The control variables were sex, age, socioeconomic status, maternal education, alcohol consumption and smoking. For data analysis, univariate and multivariate logistic regression were used, with a significance level of 5%. RESULTS: The prevalence of low levels of physical activity was 81.9%; the inadequate consumption of fruits ocurred in 79.1% and the inadequate consumption of vegetables in 90.6%. Adolescents who consumed few fruits daily had an increase in 40% of chance of being insufficiently active and, for those who consumed few vegetable's the likelihood of being insufficiently active was 50% higher, compared to those who had adequate intake of these foods. CONCLUSIONS: Low levels of physical activity were associated with inadequate fruit and vegetable intake among adolescents in a city in northeastern Brazil. These findings suggest that insufficiently active adolescents have other unhealthy behaviors that may increase the risk of chronic diseases in adulthood.

OBJETIVO: Verificar se há associação entre baixos níveis de atividade física e consumo de frutas, verduras e legumes em adolescentes. MÉTODOS: Estudo transversal, com 2.057 adolescentes na faixa de 13 a 18 anos, estudantes de escolas públicas de Aracaju (SE) e região metropolitana. Analisou-se o nível de atividade física e o consumo de frutas, verduras e legumes por meio de questionários padronizados e validados. As variáveis de controle foram: sexo, idade, nível econômico, escolaridade materna, consumo de álcool e tabagismo. Para a análise dos dados usou-se a regressão logística uni e multivariável, com nível de significância de 5%. RESULTADOS: A prevalência de baixo nível de atividade física foi de 81,9%, a de consumo inadequado de frutas foi de 79,1% e a de consumo inadequado de verduras e legumes foi de 90,6%. Adolescentes que consumiam poucas porções de frutas no dia apresentaram 40% mais chances de ser pouco ativos fisicamente e aqueles que consumiam poucas porções de verduras e legumes apresentaram 50% mais chances de ser pouco ativos fisicamente, comparados aos que apresentavam consumo adequado. CONCLUSÕES: Baixos níveis de atividade física se associaram com o consumo inadequado de frutas, verduras e legumes em adolescentes de uma cidade do Nordeste do Brasil. Esses achados sugerem que adolescentes pouco ativos apresentam outros comportamentos não saudáveis que podem aumentar o risco na vida adulta de doenças crônicas não transmissíveis.

[Association between physical activity level and consumption of fruit and vegetables among adolescents in northeast Brazil]. / Associação entre prática de atividade física com consumo de frutas, verduras e legumes em adolescentes do Nordeste do Brasil.

OBJECTIVE: To determine the association between low levels of physical activity and consumption of fruits and vegetables among adolescents. METHODS: This cross-sectional study included 2,057 adolescents aged 13 to 18 years from the city of Aracaju, Northeastern Brazil. We analyzed the level of physical activity, consumption of fruits and vegetables by standardized and validated questionnaires. The control variables were sex, age, socioeconomic status, maternal education, alcohol consumption and smoking. For data analysis, univariate and multivariate logistic regression were used, with a significance level of 5%. RESULTS: The prevalence of low levels of physical activity was 81.9%; the inadequate consumption of fruits ocurred in 79.1% and the inadequate consumption of vegetables in 90.6%. Adolescents who consumed few fruits daily had an increase in 40% of chance of being insufficiently active and, for those who consumed few vegetable,s the likelihood of being insufficiently active was 50% higher, compared to those who had adequate intake of these foods. CONCLUSIONS: Low levels of physical activity were associated with inadequate fruit and vegetable intake among adolescents in a city in northeastern Brazil. These findings suggest that insufficiently active adolescents have other unhealthy behaviors that may increase the risk of chronic diseases in adulthood.

Suicidal ideation and associated factors among adolescents in northeastern Brazil.

This study aimed to identify the prevalence and factors associated with suicidal ideation among Brazilian adolescents. The instrument designed for the research was used considering three models with outcomes that identified the following: (a) adolescent had considered suicide, (b) adolescents have planned suicide, and (c) adolescents have attempted suicide. Logistic Regression was used in all models with significance level of 5%. An association between being female and suicidal ideation (OR = 2.18, CI 95% 1.60 to 2.97), suicide planning (OR = 1.80, CI 95% = 1.26-2.56), and suicide attempt (OR = 2.91, CI 95% 1.79 to 4.75) was found. Violent behavior/involvement in fights was associated with thinking about suicide (OR = 2.00, CI 95% = 1.43 to 2.81), suicide planning (OR = 1.65, CI 95% = 1.10-2.46), and suicide attempt (OR = 2.35, CI 95% = 1.49 to 3.70). For cigarette consumption, association was found with suicide ideation (OR = 1.62, CI 95% 1.03 to 2.55), planning (OR = 1.88, CI 95% = 1.15 to 3.08), and attempt (OR = 2.35, CI 95% 1.37 to 4.03). For alcohol consumption, association was found with suicide ideation (OR = 1.93, CI 95% 1.47 to 2.54), planning (OR = 2.22, CI 95% 1.61 to 3.08), and attempt (OR = 1.73, CI 95% 1.15 to 2.59). It was concluded that suicidal ideation was associated with female sex, involvement in fights, and illicit drug use.

The Length of Stay in Community Physical Activity Program Does Not Exceed Two Years / O Tempo de Permanência em Programa Comunitário de Atividade Física não Ultrapassa Dois Anos

The aim of this study was to estimate the length of stay of participants in a Community Physical Activity Program (CPAP). This is a retrospective cohort study that estimated the length of stay of 727 participants (55.16 +12.78 years) stratified into three age groups (Group 1: 18-35 years, group 2: 36-59 years; Group 3: above 60 years) in a CPAP by observing evaluations performed by the program during the period of 26.5 months. Survival Analysis was applied by the Kaplan Meier method to analyze the length of stay of participants and Log-Rank to estimate the length of stay in relation to the age groups considered in the study. Significance level of 5 % was adopted in all analyses. The mean length of stay of participants was 16 + 7.9 months. Of the 727 participants, only six (0.08%) remained the entire cohort. The highest dropout (68%) was observed in the first year of CPAP. When considering the age groups, difference statistically significant (p= 0.025) was observed among length of stay of participants, and individuals in Group 1, with mean length of stay of 12.4 ± 6.2 months, did not remain after 20 month of program and for the other two groups, this time was 16 ± 7.9 months. The maximum length of stay of participants in the program was approximately two years and most participants dropped out in the first year and a greater permanence of adults and elderly subjects was observed.

O objetivo do estudo foi estimar o tempo de permanência de participantes em um Programa Comunitário de Atividade Física (PCAF). Trata-se de uma coorte retrospectiva em que foi estimada a permanência de 727 participantes (55,16+11,78 anos) estratificados em três grupamentos etários (Grupo 1: 18 a 35 anos; Grupo 2: 36 a 59 anos; Grupo 3: acima dos 60 anos) de um PCAF através da observação às avaliações realizadas pelo programa no período de 26,5 meses. Aplicou-se a Análise de Sobrevivência pelo método de Kaplan Meier para analisar o tempo de permanência dos participantes e Log-Rank para estimar a permanência em relação às faixas etárias consideradas no estudo. Utilizou-se nível de significância de 5% em todas as análises. A média do tempo de permanência dos participantes foi de 16+7.9 meses. Dos 727 participantes somente seis (0,08%) permaneceram durante toda a coorte. A maior desistência (68%) foi percebida no primeiro ano do PCAF. Quando observados os grupamentos etários verificou-se diferença estatisticamente significativa (p= 0,025) entre o tempo de permanência dos mesmos, sendo que os indivíduos do Grupo 1, com média de permanência de 12,4± 6,2 meses, não permaneceram após o 20º mês no programa e a permanência para os outros dois grupos foi de 16±7,9 meses. O tempo máximo de permanência dos participantes no programa foi de aproximadamente dois anos, com desistência de maioria dos participantes até o primeiro ano e maior permanência dos sujeitos adultos e idosos.