Correlation between fat distribution and the composite indices of femoral neck strength in obese postmenopausal women / 中华内分泌代谢杂志

Objective:To investigate the correlation between fat distribution and the composite indices of femoral neck strength in obese postmenopausal women.Methods:A total of 293 postmenopausal women with non-low body weight were selected, laboratory tests, body composition analyzer test and double-energy X-ray absorptiometry scan were performed. Based on the body mass index(BMI), they were divided into three groups, the normal BMI group(18.5 kg/m 2≤BMI<24.0 kg/m 2, n=91), the overweight group(24.0 kg/m 2≤BMI<28.0 kg/m 2, n=115), and the obese group(BMI≥28.0 kg/m 2, n=87). The measurement results were analyzed. Results:In the obese group, bone mineral density(BMD) of all sites was higher than that in the normal BMI group and overweight group( P<0.005), compression strength index(CSI), bending strength index(BSI), and impact strength index(ISI) were significantly lower than those in the normal BMI group( P<0.001, P=0.008, P=0.001). In the obese group, waist circumference, waist-hip ratio, total fat mass, appendicular fat mass, and trunk fat mass were risk factors for CSI, BSI and ISI independent of age, fasting blood glucose, and BMI( P<0.05). Visceral fat grade and Chinese visceral adiposity fat index were the risk factors for CSI, BSI, and ISI( P<0.05). Conclusion:The composite indices of femoral neck strength decreased in obese postmenopausal women, and both subcutaneous fat and visceral fat were negatively associated with the composite indices of femoral neck strength.

Development and validation of equation for predicting body composition in elderly women / Desarrollo y validación de ecuaciones para la predicción de la composición corporal en ancianas / Desenvolvimento e validação de equações para predição da composição corporal em idosas

ABSTRACT Introduction: Body composition assessment (BCA) using anthropometric measurements (AM) is used to monitor the nutritional and health status of the elderly. As predictor variables, MAs must be valid, practical, and quick, as they favor adherence and avoid possible resistance and embarrassment on the part of those being assessed and being minimally invasive. Objective: To develop and validate equations using accessible and minimally invasive anthropometric measurements for BCA in elderly women. Methods: 100 women (68.1±6.15 years) were randomly assigned to two groups: validation (n=40; 68.1±6.15 years); and estimation (n=60; 68.4±6.70 years). DXA was selected as the criterion measure, and MAs (body mass, height, skinfolds, circumferences) were selected as predictor variables. Means were compared using the paired Student's t-test; correlations were verified using Pearson's r-test; equations using Multiple Linear Regression. The level of agreement between the groups' results was checked using the Bland-Altman technique. Results: Two equations developed and tested (E3 and E4) met the validation criteria as they showed adequate correlation coefficients (E3: r=0.73; E4: r=0.70), low constant errors (E3: EC= −0.56; E4: EC=-0.90), total error (E3: ET=3.22; E4: ET=3.06) lower than the Standard Error of Estimate (E3: EPE=3.24; E4: EPE=3.21), indicating no statistically significant difference between the two BCA techniques observed (p>0.05). The Bland-Altman technique showed good agreement between the results of the two techniques. Conclusion: Two were validated: E3 (%Gdxa= −41.556 + 4.041(BMI) + 0.165(DcCox) − 0.440(CircCox) + 0.269(CircQuad) − 0.053(BMI)²); and E4 (%GdxaE4= 15.329 + 1.044(BMI) −1.055(CircAbra) + 0.282(CircQuad) + 0.164(DcCox) − 0.262(CircCox)). Notably, the small number of measurements were located in areas of the body that are easily accessible and have little body exposure, which minimizes possible embarrassment and favors adherence by the elderly. Level of Evidence IV; Correlational study to build a predictive equation.

RESUMEN Introducción: La evaluación de la composición corporal (ECC) mediante medidas antropométricas (MA) se utiliza para monitorizar el estado nutricional y de salud de las personas mayores. Las MA, como variables predictoras, deben ser válidas, prácticas y rápidas, ya que favorecen la adherencia y evitan posibles resistencias y vergüenzas por parte de los evaluados, además de ser mínimamente invasivas. Objetivo: Desarrollar y validar ecuaciones utilizando medidas antropométricas de fácil acceso y mínimamente invasivas para la ECC en mujeres de edad avanzada. Métodos: 100 mujeres (68,1±6,15 años) asignadas aleatoriamente a dos grupos: validación (n=40; 68,1±6,15 años); estimación (n=60; 68,4±6,70 años). Se seleccionó la DXA como medida criterio, y las MA (masa corporal, estatura, pliegues cutáneos, circunferencias) como variables predictoras. Las medias se compararon mediante la prueba t de Student emparejada; las correlaciones se comprobaron mediante la prueba r de Pearson; las ecuaciones mediante Regresión Lineal Múltiple. El nivel de concordancia entre los resultados de los grupos se comprobó mediante la técnica de Bland-Altman. Resultados: Dos ecuaciones desarrolladas y probadas (E3 y E4) cumplieron los criterios de validación, ya que mostraron coeficientes de correlación adecuados (E3: r=0,73; E4: r=0,70), errores constantes bajos (E3: EC= −0,56; E4: EC=-0,90), error total (E3: ET=3,22; E4: ET=3,06) inferior al error estándar de estimación (E3: EPE=3,24; E4: EPE=3,21), lo que indica que no se observaron diferencias estadísticamente significativas entre las dos técnicas de ECC (p>0,05). La técnica de Bland-Altman mostró una buena concordancia entre los resultados de las dos técnicas. Conclusión: Se validaron dos: E3 (%Gdxa= −41,556 + 4,041(IMC) + 0,165(DcCox) − 0,440(CircCox) + 0,269(CircQuad) − 0,053(IMC)²); y E4 (%GdxaE4= 15,329 + 1,044(IMC) −1,055(CircAbra) + 0,282(CircQuad) + 0,164(DcCox) − 0,262(CircCox)). Es de destacar que el reducido número de mediciones se localizaron en zonas del cuerpo de fácil acceso y con poca exposición corporal, lo que minimiza posibles situaciones embarazosas y favorece la adherencia por parte de los ancianos. Nivel de Evidencia IV; Estudio correlacional para construir una ecuación predictiva.

RESUMO Introdução: A avaliação da composição corporal (ACC) com auxílio das medidas antropométricas (MA) é utilizado no acompanhamento do estado nutricional e de saúde das populações idosas. As MAs como variáveis preditoras, devem ser válidas, práticas e rápidas, pois favorecem a adesão e evitam possíveis resistências e constrangimento das avaliadas, além de minimamente invasivas. Objetivo: Desenvolver e validar equações utilizando medidas antropométricas de fácil acesso e minimamente invasivas, para ACC de idosas. Métodos: 100 mulheres (68,1±6,15 anos) distribuídas aleatoriamente por dois grupos: validação (n=40; 68,1±6,15 anos); estimativa (n=60; 68,4±6,70 anos). Como medida critério selecionou-se a DXA, como variáveis preditoras as MAs (massa corporal, estatura, dobras cutâneas, circunferências). As médias foram comparadas com o teste t de Student pareado; as correlações verificadas com o teste r Pearson; as equações com a Regressão Linear Múltipla. O nível de concordância entre os resultados dos grupos foi verificado com a técnica Bland-Altman. Resultados: Duas equações desenvolvidas e testadas (E3 e E4) atenderam aos critérios de validação, pois, apresentaram coeficientes de correlação adequados (E3: r=0,73; E4: r=0,70), erros constantes baixos (E3: EC= −0,56; E4: EC=-0,90), erro total (E3: ET=3,22; E4: ET=3,06) menores que o Erro Padrão de Estimativa (E3: EPE=3,24; E4: EPE=3,21), indicando não existir diferença estatisticamente significativa entre as duas técnicas de ACC observadas (p>0,05). A técnica Bland-Altman demonstrou boa concordância entre os resultados das duas técnicas. Conclusão: Duas equações foram validadas: E3 (%Gdxa= −41,556 + 4,041(IMC) + 0,165(DcCox) - 0,440(CircCox) + 0,269(CircQuad) - 0,053(IMC)²); e E4 (%GdxaE4= 15,329 + 1,044(IMC) −1,055(CircAbra) + 0,282(CircQuad) + 0,164(DcCox) - 0,262(CircCox)). Destaca-se o fato do reduzido número de medidas situarem-se em áreas corporais de fácil acesso e de pouca exposição corporal, que minimizam possíveis constrangimentos e favorecem a adesão das idosas. Nível de Evidência IV; Estudo correlacional para construção de equação preditiva.

El porcentaje de grasa corporal y su relación con la presión arterial en adultos de áreas rurales y urbanas

Fundamento: el exceso de grasa corporal se encuentra marcado por un desequilibrio permanente entre el consumo de alimentos y el gasto energético de los seres humanos que generan diversos riesgos para salud, entre ellos el aumento de la presión arterial. Objetivo: determinar la relación entre el porcentaje de grasa corporal y la presión arterial en adultos de áreas rurales y urbanas del municipio del Carmen de Chucurí, Colombia. Método: se realizó un estudio descriptivo y correlacional con enfoque cuantitativo a una muestra escogida de forma aleatoria, compuesta por 406 sujetos para los habitantes del sector rural y 409 del sector urbano entre los 18 y 40 años del municipio Carmen Chucurí. Se evaluó la masa corporal, con la utilización de la herramienta denominada impedancia eléctrica y el equipo marca OMRON HBF-514C y la presión arterial y se utilizó el tensiómetro digital OMRON HEM-4030. Resultados: el principal hallazgo de esta investigación fue la asociación positiva y significativa entre el porcentaje de grasa corporal y la presión arterial diastólica en hombres y mujeres rurales del municipio Carmen de Chucurí. Conclusiones: el porcentaje de grasa corporal se asocia positiva y significativamente con la presión arterial diastólica en hombres y mujeres rurales del municipio Carmen de Chucuri, para los demás parámetros analizados no fue evidente una correlación significativa.

Foundation: excess body fat is marked by a permanent imbalance between food consumption and energy expenditure of human beings that generate various health risks, including increased blood pressure. Objective: determine the relationship between the percentage of body fat and blood pressure in adults from rural and urban areas of the municipality of Carmen de Chucurí, Colombia. Method: a descriptive and correlational study with a quantitative approach was carried out on a randomly chosen sample, composed of 406 subjects for the inhabitants of the rural sector and 409 of the urban sector between 18 and 40 years of age from the Carmen Chucurí municipality. Body mass was evaluated, with the use of the tool called electrical impedance and the OMRON HBF-514C brand equipment, and blood pressure and the OMRON HEM-4030 digital blood pressure monitor was used. Results: the main finding of this research was the positive and significant association between the percentage of body fat and diastolic blood pressure in rural men and women in the Carmen de Chucurí municipality. Conclusions: the percentage of body fat is positively and significantly associated with diastolic blood pressure in rural men and women of the Carmen de Chucuri municipality; for the other parameters analyzed, a significant correlation was not evident.

Evaluation of thyroid functions and obesity in obstructive sleep apnea syndrome

SUMMARY OBJECTIVE: Obstructive sleep apnea syndrome is associated with many chronic diseases. METHODS: Obesity and thyroid function tests were evaluated retrospectively and cross-sectionally for 782 obstructive sleep apnea syndrome patients. RESULTS: The mean patient age was 49.3±11.5 years, and the majority were obese (67.9%) or overweight (26.6%). The mean age of the patients in Group 2 (moderate/severe obstructive sleep apnea syndrome) was higher than that of Group 1 (simple snoring/mild obstructive sleep apnea syndrome). The rate of severe obstructive sleep apnea syndrome among obese patients (35.2%) was significantly higher than that of normal-weight (11.6%) and overweight (18.3%) patients (p=0.001). The oxygen desaturation index/apnea-hypopnea index and levels of leukocytes and C-reactive protein were significantly higher, while mean/minimum saturation values and hemoglobin, hematocrit, and free triiodothyronine levels were significantly lower among obese patients compared with overweight and normal-weight patients (p=0.001). Leukocytes, C-reactive protein, and apnea-hypopnea index/oxygen desaturation index values were higher, and mean/minimum saturation values were lower in Group 2 than in Group 1. CONCLUSION: There were relationships between obstructive sleep apnea syndrome severity and body mass index. Obesity could be a critical predisposing factor for sleep disturbances. The prevention and control of obesity is important while being treated for obstructive sleep apnea syndrome.

Association of body fat distribution with depression and social anxiety in children and adolescents: A cross-sectional study based on dual-energy X-ray detection / 北京大学学报(医学版)

OBJECTIVE@#To investigate the status of depression and social anxiety in children and adolescents, and to analyze the association between body fat distribution and depression, social anxiety in children and adolescents.@*METHODS@#A total of 1 412 children aged 7 to 18 years in Beijing were included by stratified cluster random sampling method. Body fat distribution, including total body fat percentage (total BF%), Android BF%, Gynoid BF% and Android-to-Gynoid fat ratio (AOI), were obtained by dual-energy X-ray absorption method. Depression and social anxiety were evaluated by Children Depression Inventory and Social Anxiety Scale for Children. Multivariate linear regression and restricted cubic spline analysis were used to estimate the linear and non-linear correlation between body fat distribution and depression and social anxiety.@*RESULTS@#13.1% and 31.1% of the children and adolescents had depressive symptoms and social anxiety symptoms respectively, and the detection rate of depression and social anxiety in the boys and young groups was significantly lower than those in the girls and old groups. There was no significant linear correlation between total BF%, Android BF%, Gynoid BF%, AOI and depression and social anxiety in the children and adolescents. However, total BF% and Gynoid BF% had significant nonlinear correlation with depression, showing an inverted U-shaped curve relationship with the tangent points of 26.8% and 30.9%, respectively. In terms of the nonlinear association of total BF%, Android BF%, Gynoid BF% and AOI with depression and social anxiety, the change trends of the boys and girls, low age group and high age group were consistent. The overall anxiety risk HR of body fat distribution in the boys was significantly higher than that in the girls, and the risk HR of depression and social anxiety were significantly higher in the high age group than those in the low age group.@*CONCLUSION@#There was no significant linear correlation between body fat distribution and depression and social anxiety in children and adolescents. Total BF% and depression showed an inverted U-shaped curve, mainly manifested in Gynoid BF%, and this trend was consistent in different genders and different age groups. Maintaining children and adolescents' body fat distribution at an appropriate level is the future direction of the prevention and control of depression and social anxiety in children and adolescents.

Correlation between body fat distribution measured by quantitative CT and blood lipids in overweight and obese individuals undergoing physical examinations / 中华健康管理学杂志

Objective:To analyze the correlation between quantified body fat distribution measured by computed tomography (CT) and blood lipids in overweight and obese individuals undergoing physical examinations.Methods:In this retrospective cohort study, a total of 3 463 physical examination subjects who underwent chest CT combined with quantified CT examination in the Department of Health Management at Henan Provincial People′s Hospital from January to December 2021 were selected using a comprehensive sampling method. The subjects were divided into three groups: normal group (1, 424 cases), overweight group (1, 531 cases), and obese group (508 cases) based on their body mass index: 18.5 to <24.0 kg/m 2, 24.0 to <28.0 kg/m 2, and≥28.0 kg/m 2, respectively. General information, blood lipid parameters, and different body fat distributions measured by quantified CT (subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, muscle fat content) were collected in the three groups. One-way analysis of variance was used to compare differences in body fat distribution and blood lipid parameters, and Pearson correlation analysis was performed to evaluate the correlation between body fat distribution and blood lipids. Results:In the obese group, compared to the normal and overweight groups, subcutaneous fat area, visceral fat area, total abdominal fat area, liver fat content, muscle fat content, total cholesterol, low-density lipoprotein cholesterol (LDL-C), and triglyceride levels were significantly higher [males: (152.80±49.27) vs (72.94±22.68), (103.79±28.30) cm 2; (287.95±57.55) vs (156.36±49.40), (224.67±53.10) cm 2; (440.75±72.44) vs (229.31±62.01), (328.46±62.77) cm 2; (12.92±8.61)% vs (6.82±3.31)%, (9.39±4.88)%; (9.06±9.34)% vs (4.55±5.06)%, (6.70±6.73)%; (6.52±0.94) vs (4.87±1.03), (6.27±0.96) mmol/L; (3.05±0.76) vs (2.92±0.86), (2.97±0.77) mmol/L; (2.34±1.42) vs (1.53±0.82), (1.99±1.28) mmol/L; females: (213.82±46.87) vs (104.69±30.62), (155.05±34.90) cm 2; (184.88±46.54) vs (90.67±34.09), (138.92±42.06) cm 2; (398.71±71.28) vs (195.37±55.32), (293.97±57.05) cm 2; (11.36±6.34)% vs (5.51±3.02)%, (7.98±4.77)%; (7.44±7.60)% vs (3.70±3.90)%, (5.56±5.94)%; (5.27±0.96) vs (5.04±0.86), (5.11±0.96) mmol/L; (3.26±0.84) vs (2.92±0.79), (3.01±0.74) mmol/L; (1.74±0.69) vs (1.27±0.65), (1.57±0.77) mmol/L], while high-density lipoprotein cholesterol (HDL-C) was significantly lower [males: (1.17±0.19) vs (1.38±0.28), (1.25±0.25) mmol/L; females: (1.36±0.22) vs (1.59±0.32), (1.42±0.27) mmol/L] (all P<0.001). In males, the visceral fat area and total abdominal fat area in the overweight group were positively correlated with triglycerides ( r=0.175, 0.113) and negatively correlated with HDL-C ( r=-0.125, -0.113), while liver fat content was positively correlated with total cholesterol, LDL-C, and triglycerides ( r=0.083, 0.075, 0.206) and negatively correlated with HDL-C ( r=-0.093) (all P<0.05). In the obese group, the liver fat content was positively correlated with triglycerides ( r=0.170) and negatively correlated with HDL-C ( r=-0.166) in males (both P<0.05). In females, the visceral fat area and total abdominal fat area in the overweight group were positively correlated with total cholesterol, LDL-C, and triglycerides (visceral fat area: r=0.129, 0.160, 0.348; total abdominal fat area: r=0.121, 0.130, 0.283) and negatively correlated with HDL-C ( r=-0.264, -0.173), while liver fat content was positively correlated with triglycerides ( r=0.352) and negatively correlated with HDL-C ( r=-0.195) (all P<0.05). In the obese group, the visceral fat area was positively correlated with triglycerides ( r=0.213) and negatively correlated with HDL-C ( r=-0.223) in females (both P<0.05). Conclusion:Blood lipids are correlated with body fat distribution in overweight and obese individuals undergoing physical examinations, and the degree of correlation varies between different genders and body regions, with triglycerides showing the strongest correlation with liver fat content.

Assessment of body composition by whole-body densitometry: what radiologists should know / Avaliação da composição corporal pela densitometria de corpo inteiro: o que os radiologistas precisam saber

Abstract The analysis of body composition is a fundamental part of a nutritional status assessment, and the use of diagnostic imaging methods has been increasingly required for an adequate characterization of the lean body mass and fat mass. Body composition measurements are useful in evaluating the effectiveness of nutritional interventions and monitoring changes associated with aging and chronic diseases. Whole-body densitometry using dual-energy X-ray absorptiometry (DEXA) is one of the most widely used methods in clinical practice, allowing highly accurate assessment of the bone mineral content, lean body mass, and fat mass. Although a DEXA examination provides a lot of information, there is still no universal standardization of the parameters to be included in radiology reports. The aim of this study was to review the most relevant information for assessing body composition by whole-body densitometry.

Resumo A análise da composição corporal é parte fundamental de uma avaliação nutricional, em que a utilização de métodos diagnósticos por imagem tem sido cada vez mais requisitada para uma adequada caracterização da massa magra e massa gorda corporal. Medidas de composição corporal são úteis em avaliar a eficácia das intervenções nutricionais e monitorar as mudanças associadas ao envelhecimento e condições de doenças crônicas. A densitometria de corpo inteiro utilizando a técnica de absorciometria de dupla energia (DEXA) é um dos métodos mais utilizados na prática clínica, que permite avaliação com elevada acurácia do conteúdo mineral ósseo, da gordura corporal e da massa magra. Este exame fornece grande quantidade de informações, no entanto, ainda não existe uma padronização universal de quais parâmetros devem ser incluídos nos relatórios radiológicos. O objetivo deste trabalho é revisar as informações mais relevantes para avaliação da composição corporal fornecidas pela densitometria de corpo inteiro.

Study on the relationship between serum Omentin-1 and metabolic parameters in patients with abdominal obesity / 中国综合临床

Objective:To investigate the level of serum Omentin-1 in subjects with abdominal obesity, and to analyze the influencing factors of Omentin-1 and its relationship with body fat distribution, insulin resistance and metabolic parameters.Methods:A retrospective case-control study was conducted to analyze the clinical data of one hundred and fifty adults with abdominal obesity (BMI≥28 kg/m 2) who were randomly selected from Obesity Multidisciplinary Diagnosis and Treatment Center, Subei People's Hospital from Januray 2018 to December 2021. Meanwhile, 150 healthy adults were enrolled as a normal control group. Fasting serum Omentin-1 and glucose metabolism were measured, and homeostasis model assessment of insulin resistance index (HOMA-IR) was calculated. Body fat composition was measured by bioelectrical impedance analysis. The relationship between Omentin-1 and other variables were presented by the Pearson correlation coefficients. Stepwise regression model was used to analyze the influencing factors of Omentin-1. Results:The serum omentin-1 level of patients with abdominal obesity was (36.97±6.99) μg/L, that of normal control group was (72.35±6.09) μg/L. The difference between the two groups was statistically significant ( t=46.69, P<0.001). The body fat level of patients with abdominal obesity was (43.40±14.59) kg, that of normal control group was (13.78±4.13) kg. The difference between the two groups was statistically significant ( t=23.93, P<0.001). The fasting insulin of patients with abdominal obesity was 29.05 (22.01,34.60) pmol/L, that of normal control group was 127.90 (84.08,201.45) pmol/L. The difference between the two groups was statistically significant( Z=14.75, P<0.001). The HOMA-IR of patients with abdominal obesity was 0.87 (0.68,1.05), that of normal control group was 4.19 (2.77,7.31). The difference between the two groups was statistically significant ( Z=14.75, P<0.001). Pearson linear correlation analysis showed that serum omentin-1 levels were negatively correlated with BMI, waist circumference, waist-hip ratio (WHR), body fat, visceral Fat area (VFA), HOMA-IR, triglyceride, total cholesterol and low density lipoprotein cholesterol ( r=-0.825, -0.843, -0.756, -0.777, -0.835, -0.583, -0.429, -0.353, -0.503, -0.938, all P<0.001). Whereas, a significantly positive correlation was found between serum Omentin-1 levels and high density lipoprotein cholesterol ( r=0.528, P<0.001). Omentin-1 concentrations were not related to age or gender ( r=-0.093, -0.040; P=0.669, 0.489). In multiple linear stepwise regression analysis, only VFA remained significantly associated with Omentin-1 ( β=-0.026, t=-2.250, P=0.026). Conclusion:The level of serum omentin-1 in patients with abdominal obesity was significantly lower than that in normal subjects, and it was closely related to body fat distribution and insulin resistance. VFA is an independent influencing factor of serum omentin-1, which can be used as a biomarker of abdominal obesity related metabolic disorders.

High dietary calcium intake and low adiposity: findings from a longitudinal study in Brazilian adolescents / Ingestão alta de cálcio na dieta e adiposidade baixa: achados de um estudo longitudinal em adolescentes brasileiros / Alta ingesta de calcio en la dieta y baja adiposidad: hallazgos de un estudio longitudinal en adolescentes brasileños

Epidemiological studies have supported the hypothesis that dietary calcium intake is protective for adiposity. This study aimed to estimate the association of dietary calcium with adiposity indicators during adolescence. This is a cohort study with high school adolescents (n = 962) from selected schools of the Metropolitan Region of Rio de Janeiro, Brazil, which were followed from 2010 to 2012. Calcium intake was assessed by a validated self-reported food frequency questionnaire. Cross-sectional and longitudinal analyses of dietary calcium intake were performed regarding body mass index (BMI), waist circumference (WC), body fat percentage (%BF), fat mass (FM), fat-free mass (FFM), fat mass index (FMI), and fat-free mass index (FFMI). The analysis of variance was used for cross-sectional analysis with baseline data and linear mixed models applied to assess changes across the follow-up. At baseline, BMI, %BF, fat mass, and FMI (p for trend < 0.05) had lower means at the highest quintile of calcium intake whereas FFM and FFMI had higher means (p for trend < 0.05), especially for boys. During follow-up, boys had decreased FMI at the 4th and 5th quintiles of calcium intake (p < 0.05); among girls, only WC was significantly lower at the 4th quintile than in the 1st. These results support the hypothesis that low calcium intake increases adiposity among adolescents.

Estudos epidemiológicos têm sustentado a hipótese que a ingestão de cálcio na dieta pode proteger contra a adiposidade. O estudo teve como objetivo estimar a associação entre ingestão de cálcio e indicadores de adiposidade durante a adolescência. O estudo de coorte analisou adolescentes do Ensino Médio (n = 962) de escolas selecionadas na Região Metropolitana do Rio de Janeiro, Brasil acompanhados entre 2010 e 2012. A ingestão de cálcio foi avaliada com um questionário validado de autorrelato de frequência alimentar. Foram realizadas análises transversais e longitudinais de ingestão de cálcio em relação ao índice de massa corporal (IMC), circunferência da cintura (CC), percentual de gordura corporal (%GC), massa gorda (MG), massa magra (MM), índice de massa gorda (IMG) e índice de massa magra (IMM). A análise transversal usou ANOVA com dados da linha de base, e modelos mistos lineares foram aplicados para avaliar as mudanças ao longo do seguimento. Na linha de base, foram observados valores médios mais baixos para IMC, %GC, MG e IMG (p para tendência < 0,05) no quintil mais alto de ingestão de cálcio, em que foram estimados valores médios mais altos de massa magra e índice de massa magra (p para tendência < 0,05), principalmente em meninos. Durante o seguimento, os meninos mostraram uma redução no IMG no quarto e quinto quintis de ingestão de cálcio comparado com o primeiro quintil (p < 0,05), enquanto nas meninas, apenas a CC foi significativamente mais baixa no quarto quintil de ingestão de cálcio comparado com o primeiro quintil. Os resultados corroboram a hipótese do papel da baixa ingestão de cálcio no aumento da adiposidade em adolescentes.

Los estudios epidemiológicos han apoyado la hipótesis de que la ingesta de calcio en la dieta puede ser protectora de la adiposidad. El objetivo del estudio fue estimar la asociación del calcio dietético con los indicadores de adiposidad durante la adolescencia. Se trata de un estudio de cohorte con adolescentes de secundaria (n = 962) de escuelas seleccionadas del Área Metropolitana de Río de Janeiro, Brasil, que fueron seguidas desde 2010 hasta 2012. La ingesta de calcio se evaluó mediante un cuestionario validado de frecuencia de alimentos autoinformado. Se realizaron análisis transversales y longitudinales de la ingesta de calcio en la dieta en relación con el índice de masa corporal (IMC), la circunferencia de la cintura (CC), el porcentaje de grasa corporal (%GC), la masa grasa (MG), la masa libre de grasa (MLG), el índice de masa grasa (IMG) y el índice de masa libre de grasa (IMLG). Se utilizó el ANOVA para el análisis transversal, utilizando los datos de referencia y se aplicaron modelos lineales mixtos para evaluar los cambios a lo largo del seguimiento. En la línea de base, se observaron medias más bajas de IMC, %GC, MG e IMLG (p para tendencia < 0,05) en el quintil más alto de ingesta de calcio, para el que se estimaron medias más altas de MLG y IMLG (p para tendencia < 0,05), especialmente para los chicos. Durante el seguimiento, los chicos presentaron una reducción del IMLG en el 4º y 5º quintiles de ingesta de calcio (p < 0,05), mientras que entre las chicas, sólo la CC fue significativamente menor en el 4º quintil de ingesta de calcio en comparación con el 1º. Estos resultados apoyan la hipótesis de que la baja ingesta de calcio puede tener un papel en el aumento de la adiposidad entre los adolescentes.

Body fat distribution and its risk for cardiovascular events in 10 years: Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) / A distribuição de gordura corporal está relacionada ao risco de eventos cardiovasculares em 10 anos: Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil) / La distribución de la grasa corporal está relacionada con el riesgo de eventos cardiovasculares en 10 años: Estudio Longitudinal de Salud en Adultos (ELSA-Brasil)

Body fat distribution seems to have different effects in cardiovascular diseases (CVD). We aimed to estimate the associations between lower limbs and trunk fat ratio and the 10-year CVD risk, and isolated risk factors in men and women. A total of 10,917 participants from ELSA-Brasil were eligible for this cross-sectional study. Associations between lower limb/trunk fat ratio with the percentage of 10-year CVD risk - according to the Framingham Risk Score - and its risk factors (systolic blood pressure, total cholesterol and HDL-cholesterol, diabetes, and use of antihypertensive medication) were performed using generalized linear models, linear and logistic regressions. All analyses were stratified by gender and adjustments were made by age, self-reported skin color, educational attainment, alcohol consumption, leisure physical activity, hypolipidemic drug use and, for women, menopausal status. In this study, 55.91% were women, with a mean age of 52.68 (SD = 6.57) years. A higher lower limb/trunk fat ratio was related to lower 10-year CVD risk, as well as a reduction in systolic blood pressure, total cholesterol, and antihypertensive drug use, also an increasing HDL-cholesterol in both genders, but this relationship was stronger in women. Besides, a protective relationship to diabetes was observed in women. Higher fat accumulation in the lower body, when compared to the trunk, seems to have a lower risk of CVD and associated risk factors - even in the presence of fat in the abdominal region - with women presenting lower risks than men.

A distribuição de gordura no corpo parece ter efeitos diferentes nas doenças cardiovasculares (DCV). Objetivou-se estimar as associações da razão de gordura entre membros inferiores e tronco com o risco de DCV em 10 anos e os fatores de risco independentes em homens e mulheres. Um total de 10.917 participantes do ELSA-Brasil eram elegíveis para este estudo transversal. As associações da razão de gordura entre os membros inferiores e tronco com o percentual de risco de DCV em 10 anos, de acordo com a Escala de Risco de Framingham, e os respectivos fatores de risco (pressão arterial sistólica, colesterol total e HDL colesterol, diabetes e uso de medicação anti-hipertensiva), foram avaliados com modelos lineares generalizados, lineares e de regressão logística. Todas as análises foram estratificadas por sexo, e os ajustes foram feitos por idade, raça/cor, escolaridade, consumo de álcool, atividade física, uso de medicação hipolipemiante e, para as mulheres, estado de menopausa. Na amostra do estudo atual, 55,91% eram mulheres, com média de idade de 52,68 anos (DP = 6,57). A maior diferença entre a gordura dos membros inferiores e tronco foi associada com menor risco de DCV em 10 anos e com redução na pressão arterial sistólica, colesterol total e uso de medicação anti-hipertensiva, assim como um aumento no HDL colesterol em ambos os sexos (mas essa correlação foi mais forte em mulheres). Além disso, foi observada uma relação protetora contra diabetes, apenas em mulheres. O acúmulo maior de gordura nos membros inferiores, comparado com o tronco, parece estar associado a um risco menor de DCV e aos fatores de risco, mesmo na presença de gordura na região abdominal, e esse efeito é mais forte nas mulheres que nos homens.

Las distribuciones de grasa corporal parecen tener diferentes efectos en las enfermedades cardiovasculares (ECV). Nuestro objetivo fue estimar las asociaciones entre extremidades inferiores/ratio de grasa troncal y el riesgo de ECV a los 10 años, y sus factores de riesgo aislados, en hombres y mujeres. Un total de 10.917 participantes de ELSA-Brasil fueron elegibles para este estudio transversal. Las asociaciones de la ratio de grasa entre la parte inferior del cuerpo y el tronco, con el porcentaje de riesgo de ECV a los 10 años, según la Escala de Riesgo de Framingham, y sus factores de riesgo (presión sanguínea sistólica, colesterol total y colesterol HDL, diabetes, y uso de medicación antihipertensiva), se realizaron usando modelos lineales generalizados, regresiones lineales y logísticas. Todos los análisis fueron estratificados por sexo y los ajustes se hicieron por edad, raza/color de piel autoinformado, nivel educativo, consumo de alcohol, actividad física durante el ocio, uso de medicamentos hipolipemiantes y, para mujeres, estatus menopáusico. En este estudio, un 55,91% fueron mujeres, con una media de edad de 52,68 (SD = 6,57) años. Una ratio de masa adiposa más alta entre las extremidades inferiores/tronco estuvo asociada a un riesgo menor de ECV en 10 años, también una reducción en la presión sistólica sanguínea, colesterol total, y el consumo de medicamentos antihipertensivos, también en un incremento del colesterol HDL en ambos sexos, pero esta relación fue más fuerte en mujeres. Asimismo, una relación protectora frente a la diabetes se observó solo en mujeres. Una acumulación más alta de grasa en las extremidades inferiores, comparada con la del tronco, parece tener un riego más bajo de ECV y sus factores de riesgo, incluso con la presencia de grasa en la región abdominal, además este efecto es más fuerte en mujeres comparadas con los hombres.

Effects of different order of combined training on functional capacity, blood pressure, and body composition in women from 53 to 79 years old / Efeitos de diferentes ordens do treinamento combinado sobre a capacidade funcional, pressão arterial e composição corporal em mulheres de 53 a 79 anos

Objective: To assess the effects of order of resistance training (RT) and high-intensity interval training (HIIT) on functional capacity, blood pressure, and body composition in middle-aged and older women. Methods: Twenty-two participants were randomly assigned to one of two groups: RT followed by HIIT (RT-HIIT, n = 10, mean age 64.5 ± 7.9 years) or HIIT followed by RT (HIIT-RT, n = 10, mean age 59.32 ± 4.44 years). Both groups trained twice a week for 8 weeks. RT was composed of 7 exercises for the upper and lower body. HIIT was composed of alternate pairings of high-intensity (> 85% of maximum heart rate [MHR]) and moderate-intensity (60% MHR) running. Results: A time effect was found for upper-body muscle endurance (HIIT-RT = +9.43%; RT-HIIT = +6.16%), agility and dynamic balance (HIIT-RT = -5.96%; RT-HIIT = -8.57%), and cardiorespiratory fitness (HIIT-RT = +5.14%; RT-HIIT = +6.13%), with no difference between groups. Body composition and blood pressure did not change throughout the investigation for either group. Conclusion: Eight weeks of a combined HIIT and RT exercise program improved functional capacity of middle-aged and older women without altering blood pressure and body composition, regardless of the order of exercises.

Objetivo: Avaliar os efeitos da ordem do treinamento resistido (TR) e do treinamento intervalado de alta intensidade (HIIT) sobre a capacidade funcional, pressão arterial e composição corporal em mulheres de meia-idade e idosas. Metodologia: Vinte e duas mulheres foram aleatoriamente designadas em dois grupos: um grupo realizou TR seguido por HIIT (TR-HIIT, n = 10, 64,5 ± 7,94 anos) e outro grupo realizou HIIT seguido por TR (HIIT-TR, n = 10, 59,32 ± 4,44 anos). Ambos os grupos treinaram duas vezes por semana durante oito semanas. O TR foi composto por sete exercícios para a parte superior e inferior do corpo. O HIIT foi composto de pares alternados de corrida de alta intensidade (> 85% da frequência cardíaca máxima [FCM]) e intensidade moderada (60% FCM). Resultados: Foi encontrado um efeito dos programas de exercício para a resistência muscular de membros superiores do corpo (HIIT-TR = +9.43%; TR-HIIT = +6.16%), agilidade e equilíbrio dinâmico (HIIT-TR = -5,96%; TR-HIIT = -8.57%) e aptidão cardiorrespiratória (HIIT-TR = +5.14%; TR-HIIT = +6.13%), sem diferença entre os grupos. A composição corporal e a pressão arterial não se alteraram ao longo da investigação em nenhum dos grupos. Conclusão: Oito semanas de um programa combinado de exercícios de HIIT e de TR proporcionaram melhora na capacidade funcional de mulheres de meia-idade e idosas, sem alterar a pressão arterial e a composição corporal, independente da ordem de execução.

Associação entre os sintomas depressivos e a gordura corporal em pacientes com doença renal crônica em hemodiálise / Association between depressive symptoms and body fat in chronic kidney patients in hemodialysis

| INTRODUÇÃO: O excesso de gordura corporal causa alterações metabólicas complexas que acentuam na patogênese e progressão da doença renal crônica (DRC). Além disto, os aspectos comportamentais negativos, como sintomas depressivos e o sedentarismo, são comuns e podem estar associados ao acúmulo de gordura corporal em pacientes que realizam tratamento em hemodiálise (HD). OBJETIVO: Verificar a associação entre os sintomas depressivos e a gordura corporal em pacientes com DRC em HD. MÉTODO: Trata-se de um estudo transversal de um centro clínico de HD em Brasília−DF. Trinta e nove pacientes foram incluídos (59,3±16,7; idade). A composição corporal foi avaliada por meio de bioimpedância tetrapolar. O inventário de depressão de Beck foi empregado para mensurar os sintomas depressivos. Para analisar a associação entre os sintomas depressivos e a gordura corporal foi adotado o teste de correlação de Spearman. RESULTADOS: Foi observado uma prevalência de depressão de 17,9%. Os sintomas depressivos foram positivamente correlacionados com a gordura corporal (r = 0,42; p = 0,008). CONCLUSÃO: Em nossos resultados, confirmamos que os sintomas depressivos estão associados à gordura corporal em pacientes com DRC em HD. Estes achados demonstram-se importantes para a prática clínica dos profissionais de saúde, sobretudo, nos aspectos dietéticos e psicológicos em pacientes com DRC, de forma que iniciativas de diagnóstico, prevenção e tratamentos sejam priorizadas com o objetivo de reduzir tais condições.

INTRODUCTION: Excess body fat causes complex metabolic changes that enhance the pathogenesis and progression of chronic kidney disease (CKD). Furthermore, negative behavioral aspects such as depressive symptoms and a sedentary lifestyle are common and may be associated with the accumulation of body fat in patients undergoing hemodialysis (HD) treatment. OBJECTIVE: To verify the association between depressive symptoms and body fat in HD patients. METHODS: This is a cross-sectional study that enrolled thirty-nine patients (59,3 ± 16,7; age). The body composition was evaluated by bioimpedance tetrapolar. Beck's depression inventory was used to measure depressive symptoms. Anda, to analyze possible association between depressive symptoms and body fat, Spearman's correlation test was applied. RESULTS: A depression prevalence of 17.9% was observed. Depressive symptoms were positively correlated with body fat (r = 0.42; p = 0.008). CONCLUSION: Our results confirmed that depressive symptoms were associated with body fat in HD patients. These findings are important for the clinical practice of health professionals, especially in the dietary and psychological aspects; therefore, treatment initiatives for diagnosis, prevention are important to reduce these conditions.

Associations between trunk-to-peripheral fat ratio and cardiometabolic risk factors in elderly Japanese men: baseline data from the Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) study

BACKGROUND@#Body mass-independent parameters might be more appropriate for assessing cardiometabolic abnormalities than weight-dependent indices in Asians who have relatively high visceral adiposity but low body fat. Dual-energy X-ray absorptiometry (DXA)-measured trunk-to-peripheral fat ratio is one such body mass-independent index. However, there are no reports on relationships between DXA-measured regional fat ratio and cardiometabolic risk factors targeting elderly Asian men.@*METHODS@#We analyzed cross-sectional data of 597 elderly men who participated in the baseline survey of the Fujiwara-kyo Osteoporosis Risk in Men (FORMEN) study, a community-based single-center prospective cohort study conducted in Japan. Whole-body fat and regional fat were measured with a DXA scanner. Trunk-to-appendicular fat ratio (TAR) was calculated as trunk fat divided by appendicular fat (sum of arm and leg fat), and trunk-to-leg fat ratio (TLR) as trunk fat divided by leg fat.@*RESULTS@#Both TAR and TLR in the group of men who used ≥ 1 medication for hypertension, dyslipidemia, or diabetes ("user group"; N = 347) were significantly larger than those who did not use such medication ("non-user group"; N = 250) (P < 0.05). After adjusting for potential confounding factors including whole-body fat, both TAR and TLR were significantly associated with low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglyceride, fasting serum insulin, and the insulin resistance index in the non-user group and non-overweight men in the non-user group (N = 199).@*CONCLUSION@#The trunk-to-peripheral fat ratio was associated with cardiometabolic risk factors independently of whole-body fat mass. Parameters of the fat ratio may be useful for assessing cardiometabolic risk factors, particularly in underweight to normal-weight populations.

Quality of life and its relationship with different anthropometric indicators in adults with obesity / Qualidade de vida e sua relação com diferentes indicadores antropométricos em adultos com obesidade

Abtract Introduction: Obesity compromises the quality of life. However, few studies have investigated the influence of different anthropometric indicators on the quality of life of this population. Objective: We aimed to correlate the physical and mental components of quality of life and verify its association with different anthropometric indicators in adults with obesity. Methods: A cross-sectional study was conducted in adults with obesity [body mass index (BMI) ≥ 30 kg/m²]. The quality of life was investigated using the SF-36 questionnaire, with scores ranging from 0 (worst-case scenario) to 100 (best scenario for the outcome). The anthropometric indicators used were BMI, waist circumference, waist/height ratio (WHR), and lean and fat body mass. For analysis, Spearman's correlation and crude and adjusted linear regression for sociodemographic variables were used. Results: A total of 75 subjects (nfemales = 47; µage= 34.8 ± 7.1 years) were included, and their means of the physical and mental components were 64.5 ± 15.9 and 50.8 ± 21.3 points, respectively. The social functioning domain presented a strong positive correlation (r = 0.760) with the mental health domain, and eight moderate correlations (0.400 ≤ r ≥ 0.699) were found between the different domains of the questionnaire. The functional capacity domain and the physical component presented a moderate negative correlation with the WHR (r = -0.402 and r = -0.407, respectively). After adjustment, the WHR was inversely associated with the physical component (β = -1.197; p = 0.002). Conclusion: In adults with obesity, important correlations were observed between the physical and mental components of quality of life, and the waist/height ratio was the only anthropometric indicator correlated and associated with the physical component of the outcome.

Resumo Introdução: A obesidade compromete a qualidade de vida física e mental em função do excesso de peso corporal. Entretanto poucos estudos se propuseram a compreender a influência dos diferentes indicadores antropométricos na qualidade de vida dessa população. Objetivo: Correlacionar os componentes físico e mental da qualidade de vida e verificar a sua associação com diferentes indicadores antropométricos em adultos com obesidade. Métodos: Realizou-se um estudo transversal com adultos com obesidade (índice de massa corporal [IMC] ≥ 30kg/m²). A qualidade de vida foi investigada pelo questionário SF-36, com amplitude de escores de zero (pior cenário) a 100 (melhor cenário para o desfecho). Os indicadores antropométricos foram: IMC, perímetro de cintura, razão cintura/estatura (RCE), massa corporal magra e gorda. Na estatística, empregou-se correlação de Spearman e regressão linear bruta e ajustada para variáveis sociodemográficas. Resultados: Nos 75 sujeitos (nmulheres = 47; µidade = 34,8 ± 7,1 anos), o componente físico apresentou média de 64,5 ± 15,9 pontos e mental de 50,8 ± 21,3 pontos. O domínio de aspecto social apresentou forte correlação positiva (r = 0,760) com o domínio da saúde mental e foram encontradas oito correlações moderadas (0,400 ≤ r ≥ 0,699) entre os distintos domínios do questionário. O domínio capacidade funcional e o componente físico apresentaram moderada correlação negativa com a RCE (r = -0,402 e r = -0,407, respectivamente). Na análise ajustada, a RCE apresentou uma associação inversa com o componente físico (β = -1,197; p = 0,002). Conclusão: Em adultos com obesidade, observou-se importantes correlações entre os componentes físico e mental da qualidade de vida e a razão cintura/estatura foi o único indicador antropométrico correlacionado e associado ao componente físico do desfecho.

Comparison Of Spirometric Pulmonary Function In Subjects With Apple And Pear Shape Fat Distribution

Background: The pattern of obesity as decided by body fat distribution is an important predictor of adverse health effects such as diabetes, hypertension, hyperlipidaemia and coronary events. Waist hip ratio has been correlated with cardiovascular risk. Obesity is been known to cause restrictive respiratory impairment however; the effect of body fat distribution on the respiratory system is often underappreciated and limited evidence is available on spirometric pulmonary function in subjects with different body fat distribution. Hence here is a need to know weather pattern of obesity affects pulmonary function. Objectives: 1) To measure Waist Hip ratio (WHR) of subjects having BMI of more than 23 kg/m2 and based on this form two groups, one with apple and the other with pear shape fat distribution 2) To measure FVC and FEV1 in subjects of the above two groups.3) To compare FVC, FEV1 and %FEV1/FVC in above two groups. Methodology: In this comparative study a total of 182 subjects comprising of 91 subjects of Apple shaped and Pear shaped each were recruited in a period of 6 months. Study Settings: The study was conducted in the outpatient Physiotherapy department of a tertiary care hospital. The subjects in the study belonged to age group of 18-40 years. The mean age of the enrolled subjects was 29 years. Outcome measure: 1.FVC (L); 2. %FEV1 /FVC Results: The present study provides the evidence that FVC and %FEV1/FVC values are not statistically different in apple and pear shaped fat distribution individuals. Although both apple and pear shaped individuals showed %FEV1/FVC value more than 70% predicted, apple shaped individuals showed greater obstructive tendency i.e. reduced flow rates as compared to pear shaped individuals. Also more individuals of apple shaped showed restrictive pattern as compared to pear shaped. Conclusion: There was no statistically significant difference in the pulmonary function test in the two groups but there is a possibility of subclinical reduction in pulmonary function more in apple shaped than in pear shaped individuals

Body composition in relation to nutritional status and socio-environmental conditions in schoolchildren living in the urban periphery of La Plata, Argentina

The aim of this study was to evaluate body composition in relation to nutritional status and socio-environmental conditions of residence in schoolchildren living in the urban periphery of La Plata, Argentina. Weight, height, arm circumference and tricipital and subscapular skinfolds were measured in 3,284 schoolchildren aged 4-12 years in the period 2014-2017. The National Health and Nutrition Examination Survey (NHANES) III reference was used to assess nutritional status, identifying the following categories: normal, underweight, stunting, wasting, overweight and obesity. Body composition was evaluated based on upper arm muscle area (UMA) and upper arm fat area (UFA). Deficit and excess UMA and UFA were also calculated. Central fat distribution was determined with the subscapular-tricipital index. Socio-environmental characteristics were surveyed using a structured questionnaire. The prevalence of nutritional status and body composition indicators were compared by sex using Chi square test. Socio-environmental data were analyzed using categorical Principal Component Analysis, discriminating into more favorable and unfavorable conditions. Nutritional status results were as follows: normal, 64.5%; stunting, 3.4%; underweight, 0.0%; wasting, 0.1%; overweight, 15.6% and obesity 16.4%. The nutritional status of children worsened as the socio-environmental condition of their families became more precarious. Long-term socio-environmental stress manifested as decreased muscle tissue in normal, stunted, overweight and obese children. The current results evidence the strong impact of poverty on child growth and development and at the same time enforce the need for continuous monitoring of children with hidden malnutrition(AU)

El objetivo del trabajo fue analizar la composición corporal en relación al estado nutricional y las condiciones socio-ambientales de niños residentes en la periferia urbana de La Plata, Argentina. Sobre 3284 escolares de 4 a 12 años se evaluaron peso, talla, perímetro braquial y pliegues tricipital y subescapular, durante los años 2014-2017. Se determinaron, utilizando la referencia NHANES III, las categorías de estado nutricional Normal; Bajo Peso/Edad; Baja Talla/Edad; Bajo IMC/Edad; Sobrepeso y Obesidad, y para composición corporal, se calcularon las áreas muscular y grasa (UMA y UFA) y se estimaron los déficits y excesos de tejido muscular y graso. La adiposidad centralizada fue estimada con el índice subescapular-tricipital. Las características socio-ambientales se evaluaron mediante encuesta estructurada. Las prevalencias del estado nutricional y de los indicadores de composición corporal fueron estimados y comparados por sexos, mediante pruebas de Chi2. Los datos socio-ambientales se analizaron empleando Análisis de Componentes Principales categóricos y se discriminaron dos grupos: con condiciones más favorables y con condiciones desfavorables. Los resultados indicaron: 64.5% Normal, 3.4% Baja Talla/Edad, 0.0% Bajo Peso/Edad; 0.1% Bajo IMC/Edad; 15.6% Sobrepeso; 16.4% Obesidad. El estado nutricional de los niños empeoró cuando la calidad socio-ambiental de sus familias se hizo más precaria. Debido al estrés socio-ambiental continuo, los niños tuvieron disminución del tejido muscular, incluyendo aquellos con estado nutricional Normal, Baja Talla/Edad, Sobrepeso y Obesidad. Los resultados alcanzados evidencian la impronta que deja la pobreza e impone urgentemente el monitoreo continuo de niños "con desnutrición oculta"(AU)

Trunk-to-peripheral fat ratio predicts a subsequent blood pressure in normal-weight pubertal boys: a 3-year follow-up of the Kitakata Kids Health Study

BACKGROUND@#Limited evidence exists regarding the relationship between central-to-peripheral fat ratio measured by dual-energy X-ray absorptiometry (DXA) and subsequent cardiometabolic risk in both pediatric and adult populations.@*METHODS@#The present cohort study investigated the relationship between DXA-measured body fat distribution and cardiometabolic parameters. The source population was 275 4th-6th graders (aged 9.6-12.6 years) in the northeast region of Japan (Shiokawa area in Kitakata). A 3-year follow-up was conducted to obtain complete information from 155 normal-weight children (87 boys and 68 girls). Normal-weight children were identified using sex- and age-specific international cut-offs for body mass index (BMI) based on adult BMI values of 25 kg/m and 18.5 kg/m, respectively. Body fat distribution was assessed using the trunk-to-appendicular fat ratio (TAR) and trunk-to-leg fat ratio (TLR) measured by DXA.@*RESULTS@#In boys, systolic blood pressure (SBP) at follow-up showed a significant relationship with TAR at baseline after adjusting for age, height, pubic hair appearance, SBP, and whole body fat at baseline (β = 0.24, P < 0.05), and SBP also showed a significant relationship with TLR after adjusting for confounding factors including whole body fat (β = 0.25, P < 0.05). In girls, there were no significant relationships between blood pressure and TAR/TLR.@*CONCLUSION@#Body fat distribution in normal-weight boys predicted subsequent blood pressure levels in adolescence. The relationship between fat distribution and blood pressure was independent of fat volume.

Correlation between body fat distribution and characteristics of daily physical activity in college students / 中国组织工程研究

BACKGROUND:Obesity is a risk factor for many chronic diseases. In recent years, the obesity rate of college students in my country has been on the rise. Undergraduates are under great academic pressure and have little exercise time, and their obesity needs attention from the society. Studies have found that different intensities of physical activities improve fat composition of obese or overweight people of different sexes to different extent. OBJECTIVE: To analyze the characteristics of daily physical activity and fat distribution in college students, and to explore the correlation between physical activity and fat distribution. METHODS: In total, 1 875 college students from a college of Guangxi Province were randomly selected using random sampling method. The International Physical Activity Questionnaire (IPAQ) (Chinese version) to collect their physical activity data for the past week, and a body composition measuring instrument was used to measure their fat parameter. Male and female college students were divided into three groups according to body fat rate. Male college students: ≤ 10%, 11%-21%, ≥ 22%; female college students: ≤ 20%, 21%-34%, ≥ 35%. SPSS 23.0 was used for data processing and analysis. RESULTS AND CONCLUSION: (1) Fat mass: In male college students, total fat mass > subcutaneous fat mass > trunk fat mass > lower limb fat mass > visceral fat mass > upper limb fat mass; in female college students, total fat mass > subcutaneous fat mass > trunk fat mass > lower limb fat mass > upper limb fat mass > visceral fat mass. (2) Physical activity: in college students, low-intensity physical activity > medium-intensity physical activity > high-intensity physical activity. (3) Body fat rate: In male college students, low-intensity, medium-intensity and total physical activity were highest in the < 10% group, followed by 11%-21% group and ≥ 22% group in turn (all P < 0.05), and the high-intensity physical activity in the < 10% group was higher than that in the 11%-21% group and ≥22% group (all P < 0.05). In female college students, low-intensity and medium-intensity physical activity in the < 20% group was higher than that in the 21%-34% group and ≥ 35% group (all P < 0.05), and the high-intensity and total physical activity was highest in the < 20% group, followed by 21%-34% group and ≥ 35% group in turn (all P < 0.05). (4) Correlation analysis: In male college students, low-intensity physical activity was significantly negatively correlated with total fat mass, visceral fat content, trunk fat mass, and lower limb fat mass (all r < 0, all P < 0.05), and other fat parameters were significantly negatively correlated with medium-intensity, high-intensity and total physical activity (all r < 0, all P < 0.05). In female college students, visceral fat mass was significantly negatively correlated with high-intensity physical activity (r < 0, P < 0.01), and trunk fat mass was significantly negatively correlated with high-intensity physical activity and total physical activity (both r < 0, both P < 0.01), and other fat parameters were significantly negatively correlated with low-intensity physical activity, medium-intensity physical activity, high-intensity physical activity, and total physical activity (all r < 0, all P < 0.05). To conclude, there are sex differences in physical activity and fat distribution among college students, and the fat rate of the group with active physical activity is low. The increase in physical activity of various strengths is beneficial to the reduction of body fat. In male college students, subcutaneous fat mass and upper limb fat mass are mainly affected by medium-intensity and high-intensity physical activity, and in female college students, visceral fat mass and trunk fat mass are mainly affected by high-intensity physical activity.

Value of body fat parameters in predicting the severity of acute pancreatitis / 临床肝胆病杂志

ObjectiveTo investigate the correlation between body fat parameters and the severity of acute pancreatitis (AP) and the value of body fat parameters in predicting the severity of AP. MethodsA retrospective analysis was performed for the clinical data of 229 patients with AP who were treated in Department of Gastroenterology in The Affiliated Hospital of Southwest Medical University from June 2016 to June 2019. According to the diagnostic criteria for AP, the patients were divided into mild acute pancreatitis (MAP) group, moderate-severe acute pancreatitis (MSAP) group(all P＜0.05), and severe acute pancreatitis (SAP) group, and CT images were used to calculate related body fat parameters ［visceral adipose tissue (VAT), subcutaneous adipose tissue (SAT), total adipose tissue (TAT), abdominal muscle area (AMA), VAT/TAT ratio (VTR), and visceral fat-to-muscle ratio (VMR)］. A one-way analysis of variance was used for comparison between multiple groups, and the least significant difference t-test was used for further comparison between two groups. A logistic regression analysis was used to investigate the correlation of the body fat parameters with AP severity. The receiver operating characteristic (ROC) curve was established for each body fat parameter and the area under the ROC curve (AUC) was calculated, and then the Youden index was calculated to determine the optimal cut-off value. ResultsThere were significant differences in age, VAT, TAT, AMA, VTR, and VMR between the three groups (F=4.15, 35.25, 73.02, 7.09, 462.30, and 139.4, all P＜0.05), and further comparison showed that compared with the MAP group, the MSAP group and the SAP group had significant increases in VAT, TAT, VTR, and VMR (all P＜0.05) and a significant reduction in AMA (all P＜0.05). The SAP group had significantly higher VAT, VTR, and VMR than the MSAP group(all P＜0.05). VMR had the largest AUC of 0.84(95% confidence interval: 0.76-0.92) in predicting MSAP and SAP, and had the cut-off value of 138 in predicting the severity of AP, with a sensitivity of 67.5% and a specificity of 90.6%. ConclusionBody fat parameters are correlated the severity of AP. VMR has a unique value in predicting the severity of AP and can be included in the future scoring models for predicting AP severity.

Computed tomography-measured body composition: correlation with postoperative morbidity and mortality in patients with gastroesophageal cancer / Correlação entre a composição corporal medida pela tomografia computadorizada e a morbimortalidade pós-operatória em pacientes com câncer gastroesofágico

Abstract Objective: To determine whether preoperative anthropometric and computed tomography (CT) measurements of body composition can predict postoperative morbidity and mortality in patients with gastric or esophageal cancer. Materials and Methods: This was a retrospective study in which we reviewed the medical records and abdominal CT scans of patients with gastric or esophageal cancer who underwent surgery in 2015 at a cancer center. CT scans performed during routine preoperative evaluation were retrospectively assessed to measure the area of lean body mass at the level of the third lumbar vertebra, as well as the area of visceral and subcutaneous fat. Results: Seventy patients were included in the study. The mean age was 59.9 years (range, 33-82 years), and 47 patients (67.1%) were men. The mean postoperative follow-up period was 14.9 months. Neither postoperative morbidity nor postoperative mortality correlated significantly with gender, age, the type of primary tumor, the presence of comorbidities, smoking status, body mass index, nutritional status, or visceral fat area. The survival rate was higher for patients with normal lean body mass than for those with low lean body mass (hazard ratio = 0.116; 95% confidence interval: 0.015-0.906; p = 0.040). Conclusion: Our data suggest that lean body mass can be a relevant prognostic factor in patients with gastric or esophageal cancer, and that CT measurements should be included in the routine preoperative evaluation, because it may provide information that aids nutritional and clinical care for these patients.

Resumo Objetivo: Investigar se medidas antropométricas e tomografia computadorizada (TC) da composição corporal podem predizer morbimortalidade pós-operatória em pacientes com câncer gástrico e/ou esofágico. Materiais e Métodos: Estudo retrospectivo que revisou prontuários médicos e TCs abdominais de pacientes com câncer gástrico e/ou esofágico que foram operados em 2015 em um centro de referência oncológico. As TCs realizadas durante a avaliação pré- operatória de rotina foram avaliadas retrospectivamente para medir a área de massa magra ao nível de L3 e gordura visceral e subcutânea. Resultados: Setenta pacientes foram incluídos no estudo. A média de idade foi 59,9 anos (faixa de 33-82 anos), e 47 desses pacientes (67,1%) eram homens. O seguimento pós-operatório médio foi 14,9 meses. Não houve associação significativa entre morbidade ou mortalidade pós-operatória e sexo, idade, tumor primário, comorbidades, tabagismo, índice de massa corpórea, diagnóstico nutricional ou área de gordura visceral. A taxa de sobrevida foi maior para pacientes com área de massa magra normal, em comparação com pacientes com baixa área de massa magra (hazard ratio = 0,116; intervalo de confiança 95% = 0,015-0,906; p = 0,040). Conclusão: Nossos dados sugerem que a área de massa magra pode ser um importante fator prognóstico em pacientes com câncer gástrico e/ou esofágico, e sua medida na TC deve ser incluída na avaliação pré-operatória de rotina, podendo fornecer informações que auxiliem no manejo clínico e nutricional desses pacientes.