The results suggest that despite the existence of hegemonic thinking to guide these relationships , BP and physical activity do not always have negative associations , and BP and obesity do not always have positive associations .
In the light of the importance of the impacts that obesity and physical activity may have on  blood pressure ( BP ) among adolescents , and the suggestion that abnormal pressure levels at young ages are maintained into more mature stages of these individuals ' lives , the scope of this study is to conduct a systematic review of the associations between obesity and BP and between physical activity and BP among adolescents .
Blood pressure and BMI in adolescents in Aracaju, Brazil.
OBJECTIVE To assess the prevalence of high blood pressure ( BP ) and the association of overweight and obesity with  high BP among adolescents in Aracaju , Brazil . DESIGN Cross-sectional study . The main outcome measure was the proportion of adolescents with high BP ( sex- , age- and height-specific ≥ 95th percentile ) . The main predictor variables were overweight and obesity defined according to the criteria of the International Obesity Task Force . Other covariates included age , socio-economic status and leisure-time physical activity . SETTING Aracaju , Brazil , capital city of Sergipe State , north-eastern Brazil . SUBJECTS A r and om sample of 1002 adolescents ( 442 boys and 560 girls ) aged 12 - 17 years selected from twenty public schools and ten private schools were studied . RESULTS The prevalence of high BP was 16.9 % ( 95 % CI 13.1 , 21.7 ) in boys and 12.9 % ( 95 % CI 9.0 , 18.0 ) in girls . After adjusting for age , socio-economic status and leisure-time physical activity in both boys and girls , overweight ( prevalence ratio ( PR ) = 1.93 , 95 % CI 1.08 , 3.48 ; PR = 4.34 , 95 % CI 2.58 , 7.30 , respectively ) and obesity ( PR = 4.87 , 95 % CI 2.35 , 10.11 ; PR = 5.18 , 95 % CI 2.67 , 10.06 , respectively ) were found to be associated with high BP . CONCLUSIONS These findings indicate a high prevalence of high BP in both boys and girls in Aracaju , Brazil . Overweight and obesity were strongly associated with high BP . These findings underscore the urgent need for public health measures to prevent increasing high BP  in adolescents in Brazil .  Targeting intervention in adolescence may be a critical method for preventing high BP in later life
The results suggest that despite the existence of hegemonic thinking to guide these relationships , BP and physical activity do not always have negative associations , and BP and obesity do not always have positive associations .
In the light of the importance of the impacts that obesity and physical activity may have on  blood pressure ( BP ) among adolescents , and the suggestion that abnormal pressure levels at young ages are maintained into more mature stages of these individuals ' lives , the scope of this study is to conduct a systematic review of the associations between obesity and BP and between physical activity and BP among adolescents .