Eliane Rodrigues de Faria

Correlação entre variáveis de composição corporal e metabólica em adolescentes do sexo feminino

BACKGROUND Analysis of metabolic alterations and body composition in adolescents. OBJECTIVES To study the correlation of serum levels of lipids, glycemia, insulin, homocysteine, HOMA-IR and blood pressure among themselves and with body variables. METHODS Data concerning glycemia, total cholesterol and fractions (LDL, HDL and VLDL), triacylglycerols, insulin, homocysteine and blood pressure were measured in 100 adolescents at the age range of 14 to 17 years, who had already had menarche and attended the public schools in Vicosa, state of Minas Gerais, Brazil. The percentage of body fat (%BF) was evaluated by horizontal bioimpedance. RESULTS In relation to nutritional status, 83%, 11% and 6%, respectively were eutrophic (EU), presented overweight/overweight risk (OW/OR) or low weight (LW) (CDC/NCHS, 2000) and 61% presented high percentage of BF. Total cholesterol presented the highest percentage of inadequacy (57%), followed by HDL (50%), LDL (47%) and triacylglycerols (22%). Inadequacy in 11%, 9%, 5% and 4% were observed in relation to insulin resistance, insulin, blood pressure and glycemia, respectively. For total cholesterol, insulin, HOMA-IR and nutritional state, OW/OR>LW (p<0.05). For body composition and nutritional status, OW/OR>EU>LW (p <0.001). Some positive and strong correlations were found between BMI and the anthropometrical measures estimating the % of total BF, as well as central distribution, except for the waist/hip ratio. The %BF was correlated with insulin levels (r=0.303; p <0.001) and HOMA-IR (r=0.281; p<0.001). CONCLUSIONS Some metabolic alterations, most often related with excess weight and body fat as well as insulin resistance were found, reinforcing the importance of specific programs directed at the adolescent health.FUNDAMENTO: Analise das alteracoes metabolicas e de composicao corporal em adolescentes. OBJETIVO: Estudar a correlacao entre niveis sericos de lipidios, glicemia, insulina, homocisteina, HOMA-IR e pressao arterial, entre si e com variaveis corporais. METODOS: Coletaram-se dados referentes a glicemia, colesterol total e fracoes (LDL, HDL e VLDL), triacilglicerois, insulina, homocisteina e pressao arterial em 100 adolescentes de 14 a 17 anos de escolas publicas de Vicosa (MG) que ja haviam apresentado a menarca. A porcentagem de gordura corporal (%GC) foi avaliada pela bioimpedância horizontal. RESULTADOS: Em relacao ao estado nutricional, 83%, 11% e 6%, respectivamente, apresentaram eutrofia (EU), risco de sobrepeso/sobrepeso (RS/SP) e baixo peso (BP) (CDC/NCHS, 2000), e 61% apresentaram alta %GC. O colesterol total foi o que apresentou maior porcentagem de inadequacao (57%), seguido do HDL (50%), LDL (47%) e triacilglicerois (22%). Observou-se inadequacao em 11%, 9%, 5% e 4%, respectivamente, em relacao a resistencia a insulina, insulina, pressao arterial e glicemia. Para colesterol total, insulina, HOMA-IR e estado nutricional, RS/SP>BP (p EU>BP (p<0,001). Encontraram-se correlacoes positivas e fortes entre o IMC e as medidas antropometricas que estimam a %GC total, bem como distribuicao central, exceto para relacao cintura/quadril. A %GC correlacionou-se com niveis de insulina (r=0,303; p<0,001) e HOMA-IR (r=0,281; p<0,001). CONCLUSAO: Encontraram-se alteracoes metabolicas ligadas na maioria das vezes ao excesso de peso e de gordura corporal e a resistencia a insulina, reforcando a importância de programas especificos de atencao a saude do adolescente.

Somatic maturation and body composition in female healthy adolescents with or without adjustment for body fat

Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutrophic female adolescents with or without excessive body fat. Methods: Cross-sectional study of 118 female adolescents, from 14 to 19 years-old, in Viçosa, Minas Gerais, Southeast Brazil. The adolescents were divided in two groups: Group 1 (G1), eutrophic with adequate body fat percentage, and Group 2 (G2), eutrophic with high body fat percentage. The somatic maturation was assessed by the formula for estimating the Peak Height Velocity (PHV). Results: The PHV had higher average score in G1 adolescents compared to G2 (0.26 versus 0.05; p=0.032). There was an association between G1, G2 and the somatic maturation (p=0.049). The female adolescents before and during PHV presented higher values of fat body BMI (p=0.034) and percentage of central fat (p=0.039) compared to the adolescents after PHV. There was a correspondence between before PHV stage and the excess of body fat (α=0.751). Conclusions: There was an association between somatic maturation and body composition in eutrophic female adolescents. Length, BMI and fat percentage were different among the somatic maturation stages. It is relevant to evaluate the somatic maturation and the changes occurring in the body composition during adolescence in order to better evaluate and manage the nutritional status and the body fat excess.Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutro - phic female adolescents with or without exce...

Anthropometric indices to identify metabolic syndrome and hypertriglyceridemic waist phenotype: a comparison between the three stages of adolescence

OBJECTIVE: To determine the prevalence of metabolic syndrome (MS) and the hypertriglyceridemic waist phenotype (HW) in a representative adolescent sample; as well as to establish which anthropometric indicator better identifies MS and HW, according to gender and adolescent age. METHODS: This cross sectional study had the participation of 800 adolescents (414 girls) from 10-19 years old. Anthropometric indicators (body mass index, waist perimeter, waist/stature ratio, waist/hip ratio, and central/peripheral skinfolds) were determined by standard protocols. For diagnosis of MS, the criteria proposed by de Ferranti et al. (2004) were used. HW was defined by the simultaneous presence of increased waist perimeter (>75th percentile for age and sex) and high triglycerides (>100 mg/dL). The ability of anthropometric indicators was evaluated by Receiver Operating Characteristic curve. RESULTS: The prevalence of MS was identical to HW (6.4%), without differences between genders and the adolescence phases. The waist perimeter showed higher area under the curve for the diagnosis of MS, except for boys with 17-19 years old, for whom the waist/stature ratio exhibited better performance. For diagnosing HW, waist perimeter also showed higher area under the curve, except for boys in initial and final phases, in which the waist/stature ratio obtained larger area under the curve. The central/peripheral skinfolds had the lowest area under the curve for the presence of both MS and HW phenotype. CONCLUSIONS: The waist perimeter and the waist/stature showed a better performance to identify MS and HW in both genders and in all three phases of adolescence.

Correlation between metabolic and body composition variables in female adolescents

BACKGROUND Analysis of metabolic alterations and body composition in adolescents. OBJECTIVES To study the correlation of serum levels of lipids, glycemia, insulin, homocysteine, HOMA-IR and blood pressure among themselves and with body variables. METHODS Data concerning glycemia, total cholesterol and fractions (LDL, HDL and VLDL), triacylglycerols, insulin, homocysteine and blood pressure were measured in 100 adolescents at the age range of 14 to 17 years, who had already had menarche and attended the public schools in Vicosa, state of Minas Gerais, Brazil. The percentage of body fat (%BF) was evaluated by horizontal bioimpedance. RESULTS In relation to nutritional status, 83%, 11% and 6%, respectively were eutrophic (EU), presented overweight/overweight risk (OW/OR) or low weight (LW) (CDC/NCHS, 2000) and 61% presented high percentage of BF. Total cholesterol presented the highest percentage of inadequacy (57%), followed by HDL (50%), LDL (47%) and triacylglycerols (22%). Inadequacy in 11%, 9%, 5% and 4% were observed in relation to insulin resistance, insulin, blood pressure and glycemia, respectively. For total cholesterol, insulin, HOMA-IR and nutritional state, OW/OR>LW (p<0.05). For body composition and nutritional status, OW/OR>EU>LW (p <0.001). Some positive and strong correlations were found between BMI and the anthropometrical measures estimating the % of total BF, as well as central distribution, except for the waist/hip ratio. The %BF was correlated with insulin levels (r=0.303; p <0.001) and HOMA-IR (r=0.281; p<0.001). CONCLUSIONS Some metabolic alterations, most often related with excess weight and body fat as well as insulin resistance were found, reinforcing the importance of specific programs directed at the adolescent health.FUNDAMENTO: Analise das alteracoes metabolicas e de composicao corporal em adolescentes. OBJETIVO: Estudar a correlacao entre niveis sericos de lipidios, glicemia, insulina, homocisteina, HOMA-IR e pressao arterial, entre si e com variaveis corporais. METODOS: Coletaram-se dados referentes a glicemia, colesterol total e fracoes (LDL, HDL e VLDL), triacilglicerois, insulina, homocisteina e pressao arterial em 100 adolescentes de 14 a 17 anos de escolas publicas de Vicosa (MG) que ja haviam apresentado a menarca. A porcentagem de gordura corporal (%GC) foi avaliada pela bioimpedância horizontal. RESULTADOS: Em relacao ao estado nutricional, 83%, 11% e 6%, respectivamente, apresentaram eutrofia (EU), risco de sobrepeso/sobrepeso (RS/SP) e baixo peso (BP) (CDC/NCHS, 2000), e 61% apresentaram alta %GC. O colesterol total foi o que apresentou maior porcentagem de inadequacao (57%), seguido do HDL (50%), LDL (47%) e triacilglicerois (22%). Observou-se inadequacao em 11%, 9%, 5% e 4%, respectivamente, em relacao a resistencia a insulina, insulina, pressao arterial e glicemia. Para colesterol total, insulina, HOMA-IR e estado nutricional, RS/SP>BP (p EU>BP (p<0,001). Encontraram-se correlacoes positivas e fortes entre o IMC e as medidas antropometricas que estimam a %GC total, bem como distribuicao central, exceto para relacao cintura/quadril. A %GC correlacionou-se com niveis de insulina (r=0,303; p<0,001) e HOMA-IR (r=0,281; p<0,001). CONCLUSAO: Encontraram-se alteracoes metabolicas ligadas na maioria das vezes ao excesso de peso e de gordura corporal e a resistencia a insulina, reforcando a importância de programas especificos de atencao a saude do adolescente.

Maturação somática e composição corporal em adolescentes eutróficos do sexo feminino com ou sem adequação de gordura corporal

Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutrophic female adolescents with or without excessive body fat. Methods: Cross-sectional study of 118 female adolescents, from 14 to 19 years-old, in Viçosa, Minas Gerais, Southeast Brazil. The adolescents were divided in two groups: Group 1 (G1), eutrophic with adequate body fat percentage, and Group 2 (G2), eutrophic with high body fat percentage. The somatic maturation was assessed by the formula for estimating the Peak Height Velocity (PHV). Results: The PHV had higher average score in G1 adolescents compared to G2 (0.26 versus 0.05; p=0.032). There was an association between G1, G2 and the somatic maturation (p=0.049). The female adolescents before and during PHV presented higher values of fat body BMI (p=0.034) and percentage of central fat (p=0.039) compared to the adolescents after PHV. There was a correspondence between before PHV stage and the excess of body fat (α=0.751). Conclusions: There was an association between somatic maturation and body composition in eutrophic female adolescents. Length, BMI and fat percentage were different among the somatic maturation stages. It is relevant to evaluate the somatic maturation and the changes occurring in the body composition during adolescence in order to better evaluate and manage the nutritional status and the body fat excess.Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutro - phic female adolescents with or without exce...

Artigo originalSíndrome do ovário policístico e fatores relacionados em adolescentes de 15 a 18 anosPolycystic ovary syndrome and intervening factors in adolescents from 15 to 18 years old

OBJECTIVE To assess the factors related to the presence of polycystic ovary syndrome (PCOS) in adolescents. METHODS This was a cross-sectional study, with female adolescents from 15 to 18 years old, divided into: group 1 (with a medical diagnosis of PCOS) and group 2 (not diagnosed with PCOS). The height-for-age index and the body mass index were used for classifying the nutritional status, and a semi-structured questionnaire was applied. The Mann-Whitney test, Fishers exact test, Spearman correlation coefficients, and logistic regression were used. RESULTS This study evaluated 485 adolescents with an average age of 16.3 ± 0.9 years old. The prevalence of PCOS was 6.2%. No difference was found between the groups regarding anthropometric parameters and period of contraceptive use; however, there were differences regarding the age at menarche (p < 0.004). Older age at menarche was a protection factor against the syndrome. CONCLUSION An association was found between younger age at menarche and the development of the PCOS in adolescents.

Correlación entre variables de composición corporal y metabólica en adolescentes del sexo femenino

BACKGROUND Analysis of metabolic alterations and body composition in adolescents. OBJECTIVES To study the correlation of serum levels of lipids, glycemia, insulin, homocysteine, HOMA-IR and blood pressure among themselves and with body variables. METHODS Data concerning glycemia, total cholesterol and fractions (LDL, HDL and VLDL), triacylglycerols, insulin, homocysteine and blood pressure were measured in 100 adolescents at the age range of 14 to 17 years, who had already had menarche and attended the public schools in Vicosa, state of Minas Gerais, Brazil. The percentage of body fat (%BF) was evaluated by horizontal bioimpedance. RESULTS In relation to nutritional status, 83%, 11% and 6%, respectively were eutrophic (EU), presented overweight/overweight risk (OW/OR) or low weight (LW) (CDC/NCHS, 2000) and 61% presented high percentage of BF. Total cholesterol presented the highest percentage of inadequacy (57%), followed by HDL (50%), LDL (47%) and triacylglycerols (22%). Inadequacy in 11%, 9%, 5% and 4% were observed in relation to insulin resistance, insulin, blood pressure and glycemia, respectively. For total cholesterol, insulin, HOMA-IR and nutritional state, OW/OR>LW (p<0.05). For body composition and nutritional status, OW/OR>EU>LW (p <0.001). Some positive and strong correlations were found between BMI and the anthropometrical measures estimating the % of total BF, as well as central distribution, except for the waist/hip ratio. The %BF was correlated with insulin levels (r=0.303; p <0.001) and HOMA-IR (r=0.281; p<0.001). CONCLUSIONS Some metabolic alterations, most often related with excess weight and body fat as well as insulin resistance were found, reinforcing the importance of specific programs directed at the adolescent health.FUNDAMENTO: Analise das alteracoes metabolicas e de composicao corporal em adolescentes. OBJETIVO: Estudar a correlacao entre niveis sericos de lipidios, glicemia, insulina, homocisteina, HOMA-IR e pressao arterial, entre si e com variaveis corporais. METODOS: Coletaram-se dados referentes a glicemia, colesterol total e fracoes (LDL, HDL e VLDL), triacilglicerois, insulina, homocisteina e pressao arterial em 100 adolescentes de 14 a 17 anos de escolas publicas de Vicosa (MG) que ja haviam apresentado a menarca. A porcentagem de gordura corporal (%GC) foi avaliada pela bioimpedância horizontal. RESULTADOS: Em relacao ao estado nutricional, 83%, 11% e 6%, respectivamente, apresentaram eutrofia (EU), risco de sobrepeso/sobrepeso (RS/SP) e baixo peso (BP) (CDC/NCHS, 2000), e 61% apresentaram alta %GC. O colesterol total foi o que apresentou maior porcentagem de inadequacao (57%), seguido do HDL (50%), LDL (47%) e triacilglicerois (22%). Observou-se inadequacao em 11%, 9%, 5% e 4%, respectivamente, em relacao a resistencia a insulina, insulina, pressao arterial e glicemia. Para colesterol total, insulina, HOMA-IR e estado nutricional, RS/SP>BP (p EU>BP (p<0,001). Encontraram-se correlacoes positivas e fortes entre o IMC e as medidas antropometricas que estimam a %GC total, bem como distribuicao central, exceto para relacao cintura/quadril. A %GC correlacionou-se com niveis de insulina (r=0,303; p<0,001) e HOMA-IR (r=0,281; p<0,001). CONCLUSAO: Encontraram-se alteracoes metabolicas ligadas na maioria das vezes ao excesso de peso e de gordura corporal e a resistencia a insulina, reforcando a importância de programas especificos de atencao a saude do adolescente.

BODY DISSATISFACTION, PHYSICAL ACTIVITY, AND SEDENTARY BEHAVIOR IN FEMALE ADOLESCENTS

ABSTRACT Objective: To evaluate the association of body image with physical activity level, body composition, and sedentary behavior (SB) of female adolescents. Methods: Exploratory cross-sectional study conducted with 120 female adolescents aged between 14-19 years, from the city of Viçosa, Minas Gerais, Southeast Brazil. Body image was evaluated with a Body Silhouette Scale (BSS) and a Body Shape Questionnaire (BSQ). Weight, height, and waist circumference values were analyzed, as well as the waist-to-height ratio and body fat percentage. The physical activity level (PAL) was assessed by 24-hour Physical Activity Recall and SB by screen time, that is, time spent in front of a TV, playing video game, on the computer and using tablets, and, separately, the cell phone time. Results: Mean age was 16.5±1.5 years, and most adolescents were eutrophic (77.6%), sedentary/low PAL (84.2%), with high screen time (85.2%) and cell phone time (58.7%). Body dissatisfaction was stated in 40.6% of BSQ and 45.8% of BSS evaluations. Body distortion was identified in 52.9% of participants. All body composition measures, along with cell phone time and PAL, were associated with body dissatisfaction, the more active adolescents presenting higher levels of dissatisfaction. Conclusions: This study concluded that female adolescents with higher cell phone time also present higher body dissatisfaction, as well as the most physically active ones. All body composition measurements were associated with body dissatisfaction, mainly body mass index, waist circumference, and waist-to-height ratio.

Maturación somática y composición corporal en adolescentes eutróficos del sexo femenino con o sin adecuación de grasa corporal

Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutrophic female adolescents with or without excessive body fat. Methods: Cross-sectional study of 118 female adolescents, from 14 to 19 years-old, in Viçosa, Minas Gerais, Southeast Brazil. The adolescents were divided in two groups: Group 1 (G1), eutrophic with adequate body fat percentage, and Group 2 (G2), eutrophic with high body fat percentage. The somatic maturation was assessed by the formula for estimating the Peak Height Velocity (PHV). Results: The PHV had higher average score in G1 adolescents compared to G2 (0.26 versus 0.05; p=0.032). There was an association between G1, G2 and the somatic maturation (p=0.049). The female adolescents before and during PHV presented higher values of fat body BMI (p=0.034) and percentage of central fat (p=0.039) compared to the adolescents after PHV. There was a correspondence between before PHV stage and the excess of body fat (α=0.751). Conclusions: There was an association between somatic maturation and body composition in eutrophic female adolescents. Length, BMI and fat percentage were different among the somatic maturation stages. It is relevant to evaluate the somatic maturation and the changes occurring in the body composition during adolescence in order to better evaluate and manage the nutritional status and the body fat excess.Objective: To evaluate the relationship between the stages of somatic maturation and body composition in eutro - phic female adolescents with or without exce...