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Introduction: It is important to recognise body composition as a factor beyond weight, determined by fat, fat-free, mineral, visceral mass, total body water, habits, diet, basal metabolism (genetic component), etc. Individual differences in body composition, body fat distribution, and adipose tissue functions are predictors of the development of vascular and metabolic diseases, independent of sex. Objective: To evaluate body composition in a Colombian population at-tending a private practice in the city of Barranquilla, Atlántico. Materials and methods: Descriptive, retrospective, cross-sectional study using data from 345 patients between 18 and 60 years of age, collected from medical records, as a result of medical-nutritional consultations at the BiomediKcal-Advanced Medical Nutrition and Lifestyle Center in Barranquilla, all found with the "Tanita MC-780MA" bioimpedance medical equipment. Results: Significant differences in w.kg, BMI, age, height and FFM.kg were found in the population assessed: The mean w.kg (p=0.01) in men was 60.3 kg, the mean w.kg in women was 59.2 kg. Mean BMI (p=0.001) men was 24.5, mean BMI women was 23.8 with a SD of 3.2. The mean age (p=0.001) in men was 39.8 years, in women the mean age was 32.2 years. Mean height (p=0.001) in men 172.4 cm, mean height in women 160.2. The mean FFM.kg (p=0,001) was 40,1 kg in men, in women 39,5 kg. No significant differences were found in the variables %FM (p=0,44) mean 33% in men, mean in women 32,8% and FM.KG (p=0,09) mean in men 20,2 kg and mean in women 19,7 kg. Conclusions: The population evaluated when stratified by gender presented significant differences in multiple variables, based on which strategies can be designed to strengthen the physical health and healthy habits promotion programmes aimed at the Barranquilla community. [ABSTRACT FROM AUTHOR]

Obesity is a global, public health problem. Considered a systemic, multiorgan, metabolic and chronic inflammatory disease, with an excess of subcutaneous adipose tissue, which carries a greater risk of morbidity and mortality due to life cycles. To determine the general obesity trends according to demographic variables in Ecuador in the period 2014 - 2016. Population study, with 318,594 subjects diagnosed with general obesity. 77.2 % represented by women. The data were provided by the Ministry of Public Health of Ecuador according to province (n = 24), regions (Coast, Sierra, Amazon, and Insular), age groups (under 15, 15 to 19, 20 to 64, and over 65) and sex. Statistical analyzes of frequencies, percentage, incidence rate per 1.000 inhabitants, incidence rate ratio per year, in the total population, by sex and age group were performed. Microsoft Excel 16.44 software was used. Considering 95 % confidence intervals. In the period studied, the general obesity rate per 1.000 inhabitants was 6,5, being 3 times higher in women than in men. In 2016, the highest obesity incidence rates were reported, (6,38 per 1000 inhabitants). In addition, there is an obesity rate 2,38 times higher in the Insular region than in the Coast (95 % CI; 2.14-2.65). The data found are important, since it is the first study where these figures were analyzed, so it is relevant to consider them when carrying out disease prevention and health promotion. [ABSTRACT FROM AUTHOR]

Introduction: Introduction: during childhood and adolescence there is great individual variability in growth and biological maturation, resulting in differences in size, shape and body composition in children and adolescents of similar age. Objective: to propose percentiles to assess physical growth and body adiposity as a function of maturity status (SM) in Chilean children and adolescents. Methods: a descriptive (cross-sectional) study was designed in 7,292 children and adolescents (4214 boys and 3084 girls) from the Maule region (Chile). The age range was 6.0 to 17.9 years. Weight, height and waist circumference (WC) were evaluated. Body mass index (BMI), waist-height index (WHtR) and SM were calculated through a non-invasive anthropometric technique based on chronological age and standing height. The LMS method was used to calculate percentiles. Results: the SM calculated in boys was observed at 13.7 ± 0.6 APHV (years of peak growth speed) and in girls at 12.1 ± 0.6 APHV. Percentiles were created for weight, height, WC, BMI, and WHtR. All anthropometric variables increase as MS increases in PHV years. Conclusion: the proposed percentiles are an alternative to evaluate physical growth and body adiposity as a function of SM in Chilean children and adolescents. The results suggest the use of this non-invasive technique to be applied in clinical and epidemiological contexts. [ABSTRACT FROM AUTHOR]

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The continued increase in obesity statistics is the result of environmental factors associated with the consumption of foods high in saturated fat. The objective of the work was to evaluate the effect of a high fat diet on food parameters and visceral white adipose tissue. in Male Sprague Dawley rats (n = 10) were used, divided into two experimental groups, the control group received conventional diet (DC) and the experimental group a high fat diet (HFD), for 10 weeks. Body weight, food intake, food conversion and adipose tissue characteristics were determined. Data analysis was performed using IBM SPSS version 21 software; after evaluating the normality of the data, parametric T tests were applied for independent samples and two-way ANOVA for repeated measurements in one of the factors, with Bonferroni adjustment. It was observed that the average weight was higher in animals fed with HFD, without statistical difference with respect to DC, however, there were significant differences in the weight of rats fed with HFD at different times of the protocol, specifically weeks 1.5 and 10 (p <0.001). Food intake was higher in animals fed DC (p <0.005), however the energy consumption was higher in those fed with HFD (p=0.016), which resulted in a higher feed conversion (p <0.005). The average theoretical diameter calculated for adipocytes is statistically higher in the HFD group (p <0.005), which is related to the classical hypertrophy generated after a period of feeding with high fat content. In conclusion, the protocol allows us to establish that, given the higher energy density, HFD induces adipocyte hypertrophy, a characteristic in the obesity process. [ABSTRACT FROM AUTHOR]

Background: Vaspin is a newly-identifi ed adipocytokine associated with insulin resistance (IR).Objective: The aim of this study was to investigate the correlation between plasma vaspin concentrations and IR and determine whether this association is affected by body composition, physical activity and pubertal stage in adolescents.Methods: Were studied 484 Brazilian adolescents aged 10-14 years whose anthropometric, clinical, biochemical, and lifestyle measurements were analized. We evaluated the correlation between vaspin and risk factors for IR in adolescents with normal and high body fat percentage (%BF) and did a logistic regression to calculate the odds ratio for IR according to vaspin quartiles sex specifi c for the sample.Results: Vaspin was positively correlated with IR in adolescents with high %BF (r = 0.23, p = 0.003). The logistic regression analysis adjusted for sex, age, BMI, and pubertal stage showed that adolescents in the 2nd (OR = 0.43, 95% CI = 0.23-0.80, p = 0.008) and 3rd (OR = 0.46, 95% CI = 0.25-0.85, p = 0.014) quartile of vaspin concentration had a lower risk for IR. When the model was adjusted for %BF and physical activity, the association remained statically signifi cant only for adolescents in the 2nd quartile.Conclusion: Vaspin was correlated positively with risk factors associated with insulin metabolism in adolescents with high %BF. Vaspin was associated with a reduced risk of IR independently of BMI and pubertal stage and the association was infl uenced by body fat and physical activity in these adolescents. [ABSTRACT FROM AUTHOR]

Introducción: actualmente los programas de entrenamiento interválicos de alta intensidad parecen ser una forma de optimizar el tiempo, provocando cambios en la composición corporal debido a la activación de diferentes mecanismos hormonales y metabólicos.Objetivo: observar el efecto de cuatro semanas de entrenamiento de esprints repetidos basados en la prueba de Wingate sobre la potencia y la composición corporal en adultos jóvenes.Métodos: los participantes (22,4 ± 1,8 años) fueron asignados aleatoriamente a un grupo experimental o a un grupo control. Antes de comenzar y al acabar el periodo experimental, a los sujetos se les realizó una densitometría de cuerpo completo y una prueba de Wingate. El grupo experimental realizó 12 sesiones de esprints repetidos, realizando de 3 a 6 esprints de 30 segundos con un tiempo de recuperación de 4 minutos. El grupo control continuó con su rutina diaria y no se le aplicó ningún tipo de intervención.Resultados: en el grupo experimental, la potencia media y máxima incrementó un 9,4-16,5% (p < 0,001). Además, disminuyó la masa grasa total un 8,1% (p < 0,028) y la grasa abdominal un 10,0% (p < 0,038). El grupo control no sufrió cambios en ninguna de las variables estudiadas.Conclusiones: cuatro semanas de entrenamiento de esprints repetidos basados en la prueba de Wingate con un volumen específico de ~3 minutos por sesión y una frecuencia de 3 sesiones por semana, muestra mejoras estadísticamente significativas en la potencia máxima y media. Además, provoca cambios en la composición corporal, principalmente en la masa grasa total y de la zona abdominal. [ABSTRACT FROM AUTHOR]

Background: The different body components may contribute to the development of insulin resistance and type 2 diabetes mellitus. The aim of the present study was to examine the association of fat mass and fat free mass indices with markers of insulin resistance, independently of each other and giving, at the same time, gender-specific information in a wide cohort of European adolescents.Methods: A cross-sectional study in a school setting was conducted in 925 (430 males) adolescents (14.9 ± 1.2 years). Weight, height, anthropometric, bioimpedance and blood parameters were measured. Indices for fat mass and fat free mass, and homeostatic model assessment (HOMA) were calculated. Multiple regression analyses were performed adjusting for several confounders including fat free mass and fat mass when possible.Results: Indices of fat mass were positively associated with HOMA (all p < 0.01) after adjusting for all the confounders including fat free mass indices, in both sexes. Fat free mass indices were associated with HOMA, in both males and females, after adjusting for center, pubertal status, socioeconomic status and cardiorespiratory fitness, but the associations disappear when including fat mass indices in the adjustment´s model.Conclusion: Fat mass indices derived from different methods are positively associated with insulin resistance independently of several confounders including fat free mass indices. In addition, the relationship of fat free mass with insulin resistance is influenced by the amount of fat mass in European adolescents. Nevertheless, future studies should focus not only on the role of fat mass, but also on other body components such as fat free mass because its role could vary depending of the level and distribution of fat mass. [ABSTRACT FROM AUTHOR]

Objective: the aim of this study is to relate body composition parameters on performance in recreational cyclists using fat mass (MG), total muscle mass (MM) and the appendix of the lower extremity (MMEI) with maximal aerobic power (PAM).Methods: 11 male cyclists (27.7 ± 4.5 years; 72.4 ± 12.4 kg; 173.2 ± 6.7 cm.) were recruited. The anthropometric measurements were performed according to the protocols of the International Society for the Advancement of Kineanthropometry (ISAK) and testing of PAM were held following a ramp protocol, which began with an initial load of 150 W and then increments 30 W at 1-minute intervals until exhaustion.Results: there is dependence between variables and the VO2max MG that correlate negatively and significantly (p < 0.05). MM respect to variables and the VO2max significantly negatively correlated (p < 0.05). In correlation with the PAM, MMEI it can be seen a positive and significant correlation (p < 0.01) indicating that individuals who have greater muscle component in the lower limbs (EEII) are able to generate more power.Conclusions: we conclude that the results obtained, both the MG and the MM are not a good reference as performance parameters regarding the VAM. The MMEI was the only parameter that showed a positive relationship as a marker of performance in recreational cyclists. [ABSTRACT FROM AUTHOR]

Introduction: anthropometric indicators are easy to apply and can help identify the accumulation of visceral fat, which favors the occurrence of cardiovascular events, increasing morbidity and mortality from chronic degenerative diseases.Objective: to evaluate the accuracy of anthropometric indicators for the location of abdominal fat in determining visceral adiposity.Subjects/methods: cross-sectional study conducted among patients attending outpatient, of both sexes, aged over 20 years. Evaluated: Waist Circumference (WC), Waist-Hip Ratio (WHR), waist-to- stature ratio (CER), conicity index (CI); Sagittal Abdominal Diameter (DAS); Coronal Diameter (DC); Mass Index (BMI), percentage of body fat (% BF); Visceral Adiposity (AV/AS) predicted by the formula , fasting glucose , total cholesterol (TC), Low Density Lipoprotein (LDL), high density lipoprotein (HDL), Very Low Density lipoprotein (VLDL) and Triglycerides (TG).Results: 129 patients were included, mean age 51, 06 + 14.02 years and a higher prevalence of adults (72,9%) and female (75,2%). CC 102,9 (+ 10,82 ), CI 2,08 (+ 0,13), and the AV/AS 1,03 (+ 0,16), showed high values with statistical significance among men, p. [ABSTRACT FROM AUTHOR]

Objective: epidemiological and experimental evidence suggest the role of muscular strength has been increasingly recognized in the prevention of chronic disease in early life, and features of the cardiometabolic disease have also been negatively associated with muscle strength in adulthood. The aim of this study was to examine whether the association between muscular fitness and physical health status among children and adolescents from Bogotá, Colombia.Methods: cross-sectional study in 921 schoolchildren aged 8-11 years from Bogotá, Colombia. A muscular fitness score (MFS) was measured using handgrip strength and standing long jump and vertical jump. Each of these variables was standardized as follows: standardized value = (value = mean)/SD. The muscle fitness score was calculated as the mean of the three standardized scores. MFS was recoded into quartiles Q1 (low fitness) to Q4 (high fitness). The body mass index (BMI), skinfold thickness, waist and hip circumference, body composition by bioimpedance (BIA), blood pressure and self-declaration sexual maturation were measured such as indicators associated with future cardiovascular events.Results: the average age was 13.0 ± 2.6 years. Participants with Q4 (high fitness), show a better physical health status (BMI, blood pressure, body fat and waist circumference (BMI, blood pressure, body fat and waist circumference, p[linear X2] = 0.01). Individuals with Q1 and Q3 (low fitness) had 4.06 times (95%CI 2.60 to 6.34; p = 0.043) risk of excess body fat and 1.57 times (95%CI 1.02 -1.89; p = 0.020) risk of abdominal obesity.Conclusion: our results show that muscle fitness is associated with better physical health status. The testing of muscle strength at early ages should be included in health- monitoring systems. [ABSTRACT FROM AUTHOR]

With obesity the amount of pro- and anti-inflammatory adipokines released is increased within the fat tissue. These molecules are implicated in many clinical manifestations of this pathology such as diabetes, arterial hypertension, or cardiovascular disease. At the first stage, the fat tissue of the obese patient becomes resistant to the action of insulin due to the effect of some of these adipokines such as tumour necrosis alpha (TNF-α) or interleukine-6 (IL-6). At a second stage, this resistance occurs at other tissues and glucose and insulin levels are increased. This increase, together with high adipokines levels that occur in diabetes, lead to the occurrence of different adverse events, such as the following: increase in oxidative stress, endothelial dysfunction, increase in blood pressure, and impairments in lipoprotein metabolism, all of which are harmful for health. Practising physical activity and following a balanced diet, similar to the Mediterranean pattern with low fat and salt consumption, would be helpful for improving insulin resistance and adipokines levels in obese people, thus helping improving their health status in the long run. [ABSTRACT FROM AUTHOR]

Background: Maternal genetics and feeding before and during pregnancy, different maternal metabolic pathologies, as well as nutrient intakes of newborns in their first months of life may be involved in the obesity aetiology and its long-term consequences. The possible role of these and others factors, the mechanisms and the effects on the metabolism, and the development of this disease need further research. Objective: To acquire more knowledge about foetal adipose tissue development and the influence of genetic, dietetic and environmental factors on the risk to suffer from obesity. Methodology: Four study groups have been established with 30 pregnant women in each one: 1) control group; 2) mothers with glucose intolerance/gestational diabetes; 3) women with low weight gain during pregnancy, and 4) women with overweight/obesity at the beginning of the pregnancy. The magnitudes to be studied are: 1) dietary intake; 2) life-style habits; 3) physical activity; 4) anthropometry and body composition; 5) haematological study; 6) biochemical study (lipid and metabolic biomarkers); 7) immune function profile related to nutritional status; 8) psychological profile; 9) genetic biomarkers, and 10) microbiological markers; all of them in relation to the development of the foetal adipose tissue in the first stages of life and the risk of suffering from obesity in the future. Conclusion: This project, coordinated by the Department of Paediatrics of the School of Medicine in the University of Granada, and with the collaboration of well-known and expert research groups, tries to contribute to the knowledge about the obesity aetiology in infancy and its subsequent development in later periods of life. [ABSTRACT FROM AUTHOR]