Aulas De Educação Física E Desfechos Relacionados À Saúde Em Estudantes Brasileiros

Abstract

Objective: To analyze the association between participation and physical activity during Physical Education classes with health outcomes in Brazilian students.Methods: 681 Brazilian students (50.5% female) aged 10 to 17 years participated in this cross-sectional study. Independent variables analyzed were participation and physical activity during Physical Education classes, both assessed using a self-report questionnaire. The outcomes were: cardiorespiratory fitness (20-meter Shuttle Run test), muscle strength (Push-up test), overweight and obesity (body mass index) and high blood pressure. Statistical analysis was conducted by Poisson regression to estimate the prevalence ratio (PR) and 95% confidence intervals (95%CI) adjusted for confounding variables (age, sex, parental education, physical activity and sedentary behavior), considering the complex sample design.Results: Participation in Physical Education classes was not associated with any of the studied variables. Being active during Physical Education classes was associated with achieving health related criteria for cardiorespiratory fitness (PR=1.34, 95%CI 1.16-1.55) and muscle strength (PR=1.36, 95%CI 1.09-1.71). The same did not occur for overweight (PR=1.04, 95%CI 0.95-1.14), obesity (PR=1.02, 95%CI 0.91-1.05), or high blood pressure (PR=0.98, 95%CI 0.90-1.06).Conclusions: Students who reported being active during classes presented a higher likelihood to achieve the health criteria for cardiorespiratory fitness and muscle strength. However, classes traditionally offered in Brazil do not protect students from overweight, obesity, or high blood pressure.

Attendance in physical education classes, sedentary behavior, and different forms of physical activity among schoolchildren: a cross-sectional study

“…However, comparisons between our results and those from the available scientific literature should be performed with caution, since the outcomes analyzed in our study were the self-reported frequencies of specific forms of physical activity and SB, while other studies analyzed objective measurements of time spent in moderate to vigorous physical activity (MVPA) [ 4 – 6 , 22 , 26 ] or self-reported measures in order to assess compliance with the recommendation of 60 min daily of MVPA [ 7 – 9 , 12 , 21 , 23 – 26 ]. In our study, we used a health surveillance tool, the purpose of which is to qualitatively assess the forms of physical and sedentary activities and provide a description of the total frequency of activities reported on the previous day, as a proxy for the physical activity level of the participants[ 27 ].…”

Influence of life habits and behaviors on the health of adolescents

“…Pesquisa com adolescentes de escolas públicas do Brasil mostrou que os estudantes mais ativos durante as aulas apresentaram maior probabilidade de atingir os critérios de saúde para a aptidão cardiorrespiratória e a força muscular. No entanto, as aulas não protegeram os alunos de sobrepeso, obesidade ou pressão alta, pois foram de 50 minutos duas vezes por semana, volume inferior ao necessário para cumprir com a meta recomendada para essa faixa etária (23).…”

Promoting health-related cardiorespiratory fitness in physical education: A systematic review

“…It has been suggested that PE classes may play a significant role in CRF development [ 7 – 9 ] and monitoring [ 10 ], as there are a number of field tests available that allow whole school classes to be assessed in one session [ 11 , 12 ]. Therefore, PE teachers have several quality tools to assess the students’ CRF.…”

“…Although the school setting and PE classes offer a platform that might help for improving [ 7 , 8 ] and monitoring [ 10 ] of CRF, recent studies suggest that in the last decades CRF appears to have declined in children and adolescents worldwide [ 16 , 17 ]. Due to its importance, this evidence is of great concern.…”