Health-Related Physical Fitness Is Associated With Selected Sociodemographic and Behavioral Factors in Brazilian School Children
This study investigated the association between sociodemographic and behavioral factors and health standards based on physical fitness component scores in a sample of Brazilian schoolchildren.
A sample of 1457 girls and 1392 boys aged 6 to 18 years performed a test battery of 5 items: 1) sit-and-reach, 2) curl-up, 3) trunk-lift, 4) push-up, and 5) progressive endurance run (PACER). The cut-off scores for gender and age suggested by the FitnessGram were adopted.
The findings showed that the sociodemographic and behavioral factors significantly associated with the ability of schoolchildren of meeting the health standards varied according to the fitness test. In the 5 tests used girls presented lower chance of meeting the health standards. Age and socioeconomic class were negatively associated with the performance in all physical tests. Schoolchildren aged ≤ 9 years or from families of lowest socioeconomic class presented approximately twice the chance of meeting the health standards than those aged ≥ 15 years and from more privileged families, specifically in the push-up (OR = 2.40; 95% CI 2.01-2.82) and PACER (OR = 2.18; 95% CI 1.84-2.54) tests.
Interventions to promote health-related physical fitness should not only consider gender and age of schoolchildren, but also selected sociodemographic and behavioral factors, especially socioeconomic class and leisure activities.
Available from: Joao Greca
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ABSTRACT: Associação entre indicadores socioeconômicos com a atividade física e aptidão física relacionada à saúde em adolescentes The association between socioeconomic indicators andadolescents'physical activity and health-related fitness RESUMO Objetivo O objetivo desse estudo foi analisar a associação entre diferentes indicadores socioeconômicos com a atividade física e aptidão física relacionada à saúde em adolescentes. Métodos Participaram do estudo 716 adolescentes de ambos os sexos de 10 a 18 anos (46,8 % do sexo masculino), que responderam a um questionário com objetivo de estimar a atividade física habitual, a condição socioeconômica e realizaram dois testes de aptidão física relacionada à saúde. Os indicadores socioeconômicos analisados foram: Escolaridade paterna, materna, número de TVs, banheiros, automóveis, empregadas mensalistas, geladeiras e congeladores. Resultados Foram encontradas associações positivas entre escolaridade paterna (RP=1,61, 1,27-2,10 e RP=1,41, 1,10-1,83) e empregadas mensalistas (RP=1,97, 1,04-3,81 e 1,92, 1,05-3,52) com a atividade física recomendada e atividade física no tempo livre, respectivamente. O número de automóveis (RP=1,48, 1,02-2,19) e de congeladores (RP=1,88, 1,12-3,18) se associaram positivamente e o número de TVs negativamente (RP=0,75, 0,63-0,89) com a atividade física no tempo livre. O número de TVs (RP=0,80, 0,67-0,96) e de automóveis (RP=0,70, 0,55-0,89) se associaram negativamente com a aptidão cardiorrespiratória enquanto que a escolaridade paterna (RP=1,17, 1,00-1,37) e número de banheiros (RP=1,25, 1,02-1,54) se associaram positivamente com a força muscular. Conclusão A atividade física e a aptidão física relacionada à saúde se associaram com a condição socioeconômica. No entanto, as associações são dependentes do
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This study was aimed at analysing the association between socioeconomic indicators and adolescents' physical activity and health-related fitness.
The study involved 716 adolescents from both genders whose age ranged from 10 to 18 years-old (46.8% male) who answered a questionnaire for estimating their habitual physical activity, socioeconomic status; two health-related physical fitness tests were also performed. The socioeconomic indicators analysed concerned their parents' educational level and the number of bathrooms, TVs, cars, housemaids, refrigerators and freezers in their homes.
A positive association was found between paternal education (PR=1.61 (range 1.27-2.10) and 1.41 (1.10-1.83)) and housemaids (PR=1.97 (1.04-3.81) and 1.92 (1.05-3.52)) with recommended physical activity and leisure time physical activity, respectively. The number of cars (PR=1.48: 1.02-2.19) and freezers (PR=1.88: 1.12-3.18) was positively associated with leisure time physical activity and the number of TVs negatively so (PR=0.75: 0.63-0.89). The number of TVs (PR=0.80: 0.67-0.96) and cars (PR=0.70: 0.55-0.89) was negatively associated with cardiorespiratory fitness whilst paternal education (PR=1.17: 1.00-1.37) and the number of bathrooms in the home (PR=1.25: 1.02-1.54) were positively associated with muscular strength.
Physical activity and health-related physical fitness were associated with socioeconomic status. However, such association depended on the socioeconomic indicator being analysed. Caution should be taken when analysing studies which use different socioeconomic indicators.
Available from: Adair da Silva Lopes
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ABSTRACT: To analyze socioeconomic indicators, physical activity (PA) opportunities, and behavioral correlates of cardiorespiratory and muscular fitness among Brazilian boys and girls.
A sample of 1555 adolescents was randomly selected. Age- and sex-specific standard scores were calculated for each fitness component.
Among boys, head of household's schooling, involvement in organized PA, meeting the PA recommendations, and computer/games use were associated with cardiorespiratory fitness. Involvement in organized PA and active time in Physical Education (PE) classes were predictors of muscular fitness. Among girls, active time in PE classes and TV watching were predictors of cardiorespiratory fitness. Meeting the PA recommendations was associated with muscular fitness.
PA variables and sedentary behaviors should be independently considered for physical fitness promotion in youth.
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