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Introduction. Bioelectrical impedance vector analysis (BIVA) emerges as a technique that utilizes raw parameters of bioelectrical impedance analysis and assumes the use of a reference population for information analysis.Objective. To summarize the reference values, main studies objectives, approaches, pre-test recommendations and technical characteristics of the devices employed in studies utilizing BIVA among children and adolescents without diagnosed diseases.Methods. A systematic search was conducted in nine electronic databases (CINAHL, LILACS, PubMed, SciELO, Scopus, SPORTDiscus, Science Direct, MEDLINE, and Web of Science). Studies with different designs which allowed extracting information regarding reference values of BIVA in children and adolescents without diagnosed diseases, aged 19 years or younger, were included. The systematic review followed PRISMA procedures and was registered in PROSPERO (registration: CRD42023391069).Results. After applying the eligibility criteria, 36 studies were included. Twenty studies (55.6%) analyzed body composition using BIVA, thirteen studies (36.1%) aimed to establish reference values for BIVA, and three studies (8.3%) investigated the association of physical performance with BIVA. There was heterogeneity regarding the reference populations employed by the studies. Fifteen studies used their own sample as a reference (41.6%), four studies used the adult population as a reference (11.1%), and five studies used reference values from athletes (13.9%).Conclusion. Nutricional status and body composition were the main studies objectives. References values were not always adequate or specific for the sample and population. Furthermore, there was no pattern of pre-test recommendations among the studies.

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Introduction: Excess adiposity is one of the main risk factors for cardiovascular diseases, including high blood pressure. Children and adolescents with obesity and hypertension are at greater risk of morbidity and mortality in adulthood. Objective: To analyze the association between excess peripheral, central and general adiposity with high blood pressure in adolescents in southern Brazil.Methods: This is a cross-sectional study with 1,132 adolescents (16.50 ± 1.14 years) of both sexes. Measurements were performed with the oscillometric method using digital sphygmomanometer, considering high systolic and diastolic blood pressure, values above the 95th percentile for sex and age. Peripheral adiposity (triceps skinfold) and central adiposity (subscapular skinfold) were classified as high from the 90th percentile of the Centers for Disease Control and Prevention reference distribution. For excess general adiposity, triceps and subscapular skinfold above the 90th percentile were simultaneously considered. Logistic regression was used with 5% significance level. Results: Male adolescents with high peripheral, central and general adiposity were, respectively, 2.43 (95% CI: 1.14; 5.19), 3.50 (95% CI: 1.66; 7.41) and 2.47 (95% CI: 1.01; 6.18) times more likely of having high SBP. Male adolescents with excess general adiposity were more likely of developing high diastolic blood pressure (OR: 3.31; 95% CI: 1.41; 7.70). Female adolescents with excess central and general adiposity were 4.15 (95% CI: 1.97; 8.77) and 3.30 (95% CI: 1.41; 7.77) times more likely of developing high diastolic blood pressure, respectively. Conclusion: Male adolescents with excess peripheral, central and general adiposity were more likely of having high systolic blood pressure and high diastolic blood pressure when presenting high general adiposity. In addition, female adolescents with high excess central and general adiposity were more likely of having high diastolic blood pressure.

Introdução: o excesso de adiposidade é um dos principais fatores de risco para doenças cardiovasculares, incluindo a hipertensão arterial. Crianças e adolescentes com obesidade e hipertensão apresentam maiores riscos de morbidez e mortalidade na vida adulta. Objetivo: analisar a associação entre excesso de adiposidade periférica, central e geral com pressão arterial (PA) elevada em adolescentes do Sul do Brasil. Método: estudo transversal com 1.132 adolescentes (16,50 ±1,14 anos) de ambos os sexos. As mensurações foram por método oscilométrico com esfigmomanômetro digital considerando como PA sistólica (PAS) e PA diastólica (PAD) elevadas, valores acima do percentil 95 para sexo e idade. A adiposidade periférica (dobra cutânea do tríceps) e central (dobra cutânea subescapular) foram classificadas em elevada a partir do percentil 90 da distribuição de referência do Centers for Disease Control and Prevention. Para excesso de adiposidade geral foram consideradas a dobra cutânea tricipital e subescapular acima do percentil 90, simultaneamente. Empregou-se regressão logística com nível de significância de 5%. Resultados: adolescentes do sexo masculino com adiposidade periférica, central e geral elevada apresentaram, respectivamente, 2,43 (IC95%: 1,14; 5,19), 3,50 (IC95%: 1,66; 7,41) e 2,47 (IC95%: 1,01; 6,18) vezes mais chances de PAS elevada. Adolescentes do sexo masculino com adiposidade geral elevada apresentaram maiores chances de desenvolver PAD elevada (OR: 3,31; IC95%: 1,41; 7,70). Adolescentes do sexo feminino com adiposidade central e geral elevada obtiveram 4,15 (IC95%: 1,97; 8,77) e 3,30 (IC95%: 1,41; 7,77) vezes mais chances de desenvolver PAD elevada, respectivamente. Conclusão: adolescentes do sexo masculino com adiposidade periférica, central e geral elevada tiveram mais chances de pressão arterial sistólica elevada e pressão arterial diastólica elevada quando apresentavam adiposidade geral elevada. Adolescentes do sexo feminino com adiposidade central e geral elevada apresentaram mais chances de pressão arterial diastólica elevada.