Denise Rodrigues Bueno

Desempenho de diferentes valores críticos de índice de massa corporal na identificação de excesso de gordura corporal e obesidade abdominal em adolescentes

OBJECTIVE: To analyze the agreement and accuracy of three body mass index cutoffs in the identification of excessive body fat and abdominal obesity in adolescents. METHODS: Cross-sectional analysis was carried out for which 807 adolescents of both sexes (11 to 17 years old) were recruited and their body mass, stature, waist circumference and body fat percentage measured. The ROC evaluated the accuracy of the body mass index cutoffs. RESULTS: IThe cutoffs analyzed showed a moderate level of agreement in the indication of abdominal obesity (0.54 to 0.66), and high rates of sensitivity (77.4% to 92.8%) and specificity (75.6% to 91.6%) for indication of the nutritional status. Cutoff of Brazilians was more sensitive in the indication of associated excessive body fat and abdominal obesity (97.8%). CONCLUSION: All cutoffs analyzed showed similar accuracy in the indication of nutritional status and abdominal obesity, however, the cutoff of Brazilians was more sensitive in the identification of obese individuals with high cardiovascular risk.

Proposta de pontos de corte para indicação da obesidade abdominal entre adolescentes

BACKGROUNDnThe absence of critical values for the cardiovascular risk identification among Brazilian adolescents represents an important limitation.nnnOBJECTIVESnTo prepare critical values for the waist circumference and to analyze its efficiency in indicating increased values of the arterial pressure.nnnMETHODSnTransversal study that evaluated 1,145 adolescents, from 11 to 17 years old (536 of the male sex and 609 of the female), their body weight values, stature, resistance, reactance, tricipital cutaneous fold, waist circumference and arterial pressure (n = 334) were collected. The abdominal obesity was indicated by waist circumference values.nnnRESULTSnThe obese adolescents presented higher waist circumference values and, independently of the gender and age group, there was a significant relation between the waist circumference values and all the adiposity indicators adopted in the study. The proposed critical values presented higher sensibility in indicating increased values of the arterial pressure.nnnCONCLUSIONSnThe critical values proposed for the waist circumference were more sensitive in the indication of increased values of the blood pressure. However, other studies to investigate their efficacy in the indication of other clinical and laboratorial parameters are still needed.FUNDAMENTO: A ausencia de valores criticos para a identificacao de risco cardiovascular entre adolescentes brasileiros representa uma importante limitacao. OBJETIVOS: Elaborar valores criticos para circunferencia de cintura e analisar sua eficiencia na indicacao de valores elevados de pressao arterial. METODOS: Estudo transversal que avaliou 1.145 adolescentes de 11 a 17 anos (536 do sexo masculino e 609 do feminino), dos quais foram coletados valores de peso corporal, estatura, resistencia, reatância, dobra cutânea tricepital, circunferencia de cintura e pressao arterial (n= 334). A obesidade abdominal foi indicada por meio de valores de circunferencia de cintura. RESULTADOS: Os adolescentes obesos apresentaram valores mais altos de circunferencia de cintura e, independentemente de genero e grupo etario, houve relacao significativa entre os valores de circunferencia de cintura e todos os indicadores de adiposidade adotados no estudo. Os valores criticos propostos apresentaram maior sensibilidade na indicacao de valores elevados de pressao arterial. CONCLUSOES: Os valores criticos propostos para circunferencia de cintura foram mais sensiveis na indicacao de valores elevados de pressao arterial. Entretanto, ainda sao necessarios estudos para averiguar a eficiencia dos mesmos na indicacao de outros parâmetros clinicos e laboratoriais.

Desempenho de diferentes equações antropométricas na predição de gordura corporal excessiva em crianças e adolescentes

A amostra foi composta por 1.498 individuos (678 meninos e 820 meninas), com idade entre 7 e 17 anos(M=13,7, DP=2,0), da cidade de Presidente Prudente (SP). A massa corporal e a estatura foram mensuradaspara o calculo do Indice de Massa Corporal. Tambem foi realizada a mensuracao da circunferencia de cinturae das dobras cutâneas subescapular, tricipital, abdominal e da panturrilha. O percentual de gordura corporalfoi calculado por meio de quatro equacoes: Slaughter

Capacidade cardiorrespiratória e distribuição de gordura corporal de mulheres com 50 anos ou mais

To verify the relationship between cardiorespiratory fitness and body fat in women. Evaluations were performed on 229 women with ages ranging between 50 and 84 years. Anthropometric assessment was performed and waist/hip ratio and conicity index values were obtained. The cardiorespiratory fitness was evaluated by the six minutes walk test and one pedometer was used to evaluate the speed, length, and total number of steps. The results were distributed in quartile, and interquartil comparison was performed by means of analysis of variance with post-hoc test. The relationship between the six minutes walk test and anthropometrics was identified using the Pearsons correlation coefficient. Results showed that women with cardiorespiratory fitness in the quartile4 were younger than those in quartile1 (p < or = 0.05). The anthropometric variables values were lower (p < or = 0.05) for results in the quartiles3 and 4 compared to those in quartiles1 and 2. In conclusion, women with higher adipose tissue and central fat accumulation presented lower cardiorespiratory fitness.Verificar a relacao entre capacidade cardiorrespiratoria e gordura corporal em mulheres. Foram analisadas 229 mulheres com idade entre 50 e 84 anos. Foi realizada avaliacao antropometrica e calculada a razao cintura/quadril, bem como o indice de conicidade. A capacidade cardiorrespiratoria foi avaliada pelo teste de caminhada de seis minutos. Com o pedometro foi possivel avaliar: velocidade, comprimento da passada e total de passos. Os resultados foram distribuidos em quartil, e a comparacao feita pela analise de variância com post-hoc. A relacao entre teste de caminhada de seis minutos e a antropometria foi feita pela correlacao de Pearson. Os resultados revelaram que mulheres com capacidade cardiorrespiratoria no quartil4 apresentaram idade estatisticamente menor (p<0,05) que as do quartil1. As medidas antropometricas apresentaram valores menores (p<0,05), quando comparados os resultados dos quartis3 e 4 com os quartis1 e 2. Conclui-se que mulheres com maior tecido adiposo e acumulo de gordura central apresentam menor capacidade cardiorrespiratoria.

Proposal of cut points for the indication of abdominal obesity among adolescents

BACKGROUNDnThe absence of critical values for the cardiovascular risk identification among Brazilian adolescents represents an important limitation.nnnOBJECTIVESnTo prepare critical values for the waist circumference and to analyze its efficiency in indicating increased values of the arterial pressure.nnnMETHODSnTransversal study that evaluated 1,145 adolescents, from 11 to 17 years old (536 of the male sex and 609 of the female), their body weight values, stature, resistance, reactance, tricipital cutaneous fold, waist circumference and arterial pressure (n = 334) were collected. The abdominal obesity was indicated by waist circumference values.nnnRESULTSnThe obese adolescents presented higher waist circumference values and, independently of the gender and age group, there was a significant relation between the waist circumference values and all the adiposity indicators adopted in the study. The proposed critical values presented higher sensibility in indicating increased values of the arterial pressure.nnnCONCLUSIONSnThe critical values proposed for the waist circumference were more sensitive in the indication of increased values of the blood pressure. However, other studies to investigate their efficacy in the indication of other clinical and laboratorial parameters are still needed.FUNDAMENTO: A ausencia de valores criticos para a identificacao de risco cardiovascular entre adolescentes brasileiros representa uma importante limitacao. OBJETIVOS: Elaborar valores criticos para circunferencia de cintura e analisar sua eficiencia na indicacao de valores elevados de pressao arterial. METODOS: Estudo transversal que avaliou 1.145 adolescentes de 11 a 17 anos (536 do sexo masculino e 609 do feminino), dos quais foram coletados valores de peso corporal, estatura, resistencia, reatância, dobra cutânea tricepital, circunferencia de cintura e pressao arterial (n= 334). A obesidade abdominal foi indicada por meio de valores de circunferencia de cintura. RESULTADOS: Os adolescentes obesos apresentaram valores mais altos de circunferencia de cintura e, independentemente de genero e grupo etario, houve relacao significativa entre os valores de circunferencia de cintura e todos os indicadores de adiposidade adotados no estudo. Os valores criticos propostos apresentaram maior sensibilidade na indicacao de valores elevados de pressao arterial. CONCLUSOES: Os valores criticos propostos para circunferencia de cintura foram mais sensiveis na indicacao de valores elevados de pressao arterial. Entretanto, ainda sao necessarios estudos para averiguar a eficiencia dos mesmos na indicacao de outros parâmetros clinicos e laboratoriais.

Cardiorespiratory fitness and body fat distribution in women with 50 years or more

To verify the relationship between cardiorespiratory fitness and body fat in women. Evaluations were performed on 229 women with ages ranging between 50 and 84 years. Anthropometric assessment was performed and waist/hip ratio and conicity index values were obtained. The cardiorespiratory fitness was evaluated by the six minutes walk test and one pedometer was used to evaluate the speed, length, and total number of steps. The results were distributed in quartile, and interquartil comparison was performed by means of analysis of variance with post-hoc test. The relationship between the six minutes walk test and anthropometrics was identified using the Pearsons correlation coefficient. Results showed that women with cardiorespiratory fitness in the quartile4 were younger than those in quartile1 (p < or = 0.05). The anthropometric variables values were lower (p < or = 0.05) for results in the quartiles3 and 4 compared to those in quartiles1 and 2. In conclusion, women with higher adipose tissue and central fat accumulation presented lower cardiorespiratory fitness.Verificar a relacao entre capacidade cardiorrespiratoria e gordura corporal em mulheres. Foram analisadas 229 mulheres com idade entre 50 e 84 anos. Foi realizada avaliacao antropometrica e calculada a razao cintura/quadril, bem como o indice de conicidade. A capacidade cardiorrespiratoria foi avaliada pelo teste de caminhada de seis minutos. Com o pedometro foi possivel avaliar: velocidade, comprimento da passada e total de passos. Os resultados foram distribuidos em quartil, e a comparacao feita pela analise de variância com post-hoc. A relacao entre teste de caminhada de seis minutos e a antropometria foi feita pela correlacao de Pearson. Os resultados revelaram que mulheres com capacidade cardiorrespiratoria no quartil4 apresentaram idade estatisticamente menor (p<0,05) que as do quartil1. As medidas antropometricas apresentaram valores menores (p<0,05), quando comparados os resultados dos quartis3 e 4 com os quartis1 e 2. Conclui-se que mulheres com maior tecido adiposo e acumulo de gordura central apresentam menor capacidade cardiorrespiratoria.

Capacidad cardiorrespiratoria y distribución de la grasa corporal en mujeres con 50 años o más

To verify the relationship between cardiorespiratory fitness and body fat in women. Evaluations were performed on 229 women with ages ranging between 50 and 84 years. Anthropometric assessment was performed and waist/hip ratio and conicity index values were obtained. The cardiorespiratory fitness was evaluated by the six minutes walk test and one pedometer was used to evaluate the speed, length, and total number of steps. The results were distributed in quartile, and interquartil comparison was performed by means of analysis of variance with post-hoc test. The relationship between the six minutes walk test and anthropometrics was identified using the Pearsons correlation coefficient. Results showed that women with cardiorespiratory fitness in the quartile4 were younger than those in quartile1 (p < or = 0.05). The anthropometric variables values were lower (p < or = 0.05) for results in the quartiles3 and 4 compared to those in quartiles1 and 2. In conclusion, women with higher adipose tissue and central fat accumulation presented lower cardiorespiratory fitness.Verificar a relacao entre capacidade cardiorrespiratoria e gordura corporal em mulheres. Foram analisadas 229 mulheres com idade entre 50 e 84 anos. Foi realizada avaliacao antropometrica e calculada a razao cintura/quadril, bem como o indice de conicidade. A capacidade cardiorrespiratoria foi avaliada pelo teste de caminhada de seis minutos. Com o pedometro foi possivel avaliar: velocidade, comprimento da passada e total de passos. Os resultados foram distribuidos em quartil, e a comparacao feita pela analise de variância com post-hoc. A relacao entre teste de caminhada de seis minutos e a antropometria foi feita pela correlacao de Pearson. Os resultados revelaram que mulheres com capacidade cardiorrespiratoria no quartil4 apresentaram idade estatisticamente menor (p<0,05) que as do quartil1. As medidas antropometricas apresentaram valores menores (p<0,05), quando comparados os resultados dos quartis3 e 4 com os quartis1 e 2. Conclui-se que mulheres com maior tecido adiposo e acumulo de gordura central apresentam menor capacidade cardiorrespiratoria.

Propuesta de puntos de corte para indicación de la obesidad abdominal entre adolescentes

BACKGROUNDnThe absence of critical values for the cardiovascular risk identification among Brazilian adolescents represents an important limitation.nnnOBJECTIVESnTo prepare critical values for the waist circumference and to analyze its efficiency in indicating increased values of the arterial pressure.nnnMETHODSnTransversal study that evaluated 1,145 adolescents, from 11 to 17 years old (536 of the male sex and 609 of the female), their body weight values, stature, resistance, reactance, tricipital cutaneous fold, waist circumference and arterial pressure (n = 334) were collected. The abdominal obesity was indicated by waist circumference values.nnnRESULTSnThe obese adolescents presented higher waist circumference values and, independently of the gender and age group, there was a significant relation between the waist circumference values and all the adiposity indicators adopted in the study. The proposed critical values presented higher sensibility in indicating increased values of the arterial pressure.nnnCONCLUSIONSnThe critical values proposed for the waist circumference were more sensitive in the indication of increased values of the blood pressure. However, other studies to investigate their efficacy in the indication of other clinical and laboratorial parameters are still needed.FUNDAMENTO: A ausencia de valores criticos para a identificacao de risco cardiovascular entre adolescentes brasileiros representa uma importante limitacao. OBJETIVOS: Elaborar valores criticos para circunferencia de cintura e analisar sua eficiencia na indicacao de valores elevados de pressao arterial. METODOS: Estudo transversal que avaliou 1.145 adolescentes de 11 a 17 anos (536 do sexo masculino e 609 do feminino), dos quais foram coletados valores de peso corporal, estatura, resistencia, reatância, dobra cutânea tricepital, circunferencia de cintura e pressao arterial (n= 334). A obesidade abdominal foi indicada por meio de valores de circunferencia de cintura. RESULTADOS: Os adolescentes obesos apresentaram valores mais altos de circunferencia de cintura e, independentemente de genero e grupo etario, houve relacao significativa entre os valores de circunferencia de cintura e todos os indicadores de adiposidade adotados no estudo. Os valores criticos propostos apresentaram maior sensibilidade na indicacao de valores elevados de pressao arterial. CONCLUSOES: Os valores criticos propostos para circunferencia de cintura foram mais sensiveis na indicacao de valores elevados de pressao arterial. Entretanto, ainda sao necessarios estudos para averiguar a eficiencia dos mesmos na indicacao de outros parâmetros clinicos e laboratoriais.

Bioelectrical impedance and indicators of body fat and cardiovascular risk in adolescents

O objetivo do presente estudo foi analisar a relacao da impedância bioeletrica com indicadores de adiposidade e de elevado risco cardiovascular, e a efi ciencia da mesma na indicacao do estado nutricional, segundo o Indice de Massa Corporal. Estudo de delineamento transversal. A amostra foi composta por 900 sujeitos de ambos os sexos e idadecompreendida entre 11 e 17 anos. Foram coletadas informacoes referentes ao peso corporal, estatura, prega cutânea tricipital, circunferencia de cintura e valores de resistencia e reatância. A indicacao do estado nutricional foi feita segundovalores de Indice de Massa Corporal e gordura corporal relativa (impedância bioeletrica). Para ambos os sexos, a impedância bioeletrica correlacionou-se de forma signifi cativa (p The purpose of this study was to analyze the relationship between bioelectric impedance and adiposity and elevated cardiovascular risk indicators, and its effectiveness for detecting appropriate nutritional status, according to the Body Mass Index. A Cross-sectional study. The sample included 900 subjects, both males and females, with ages ranging from 11 to 17 years. Nutritional status was determined according to both Body Mass Index and relative body fat, estimated by bioelectric impedance. For both sexes, bioelectric impedance was signifi cantly correlated (p