Reduced Heart Rate Variability as A Risk Factor for Cardiovascular Disease in Young Healthy Adults with Low and High Body Mass Indexes – A Descriptive Study

Background: Heart rate variability (HRV) is a used to assess autonomic nervous system input to the heart. Studies on the impact of HRV on underweight are limited. Aims/Objectives: To evaluate HRV in age matched young adults of different BMI category. Methodology: This cross-sectional study was done among healthy young adult volunteers between 18 and 25 years of age. Anthropometric variables were measured. ECG was recorded in lead II configuration for 5 minutes. Heart rate variability was analysed with Kubios HRV analyzer. Results: HRV indices were reduced in underweight (UW), overweight (OW) and obese group compared to normal weight (NW) BMI group. Second order polynomial regression between BMI and HF log power in both genders shows an inverted U-shaped relationship with BMI. The association between BMI, waist circumference and body fat (percentage) with HRV indices shows a significant relation to heart rate var-iability among which waist circumference (WC) shows a greater association with HRV indices than BMI. Comparison of HRV parameters among men and women of different BMI group shows female had great-er heart rate variability compared to males across BMI Conclusions: underweight individual also have increased cardiovascular risk like obese group and ab-dominal obesity is better indicator of cardiovascular risk than BMI.

Nutritional Status among Adolescent Girls in Rural Areas of Tirupati � A Cross Sectional Study

Background: Adolescent is the period of the life between the ages of 10-19 years. Adolescence is time to learn and adopt healthy habits to avoid many health and nutritional problems later in life. Objective of this study is to assess the nutritional status of adolescent girls by anthropometric measurements and to determine the association between different individual and family level factors with under nutrition. Methods: It is a community based cross-sectional study conducted among adolescent girls of age between 10-19 years in rural areas of Tirupati. The study sample was 188. BMI for age <-2SD is considered as thinness. A pre tested semi structured questionnaire was used to collect individual and family level factors and analysed using appropriate statistical tests with SPSS26th version. Results: Prevalence of thinness and overweight/obese among adolescent girls in this study was 17% and 17.6%. Thinness was significantly high among girls with family size is more than five(23.8% vs 8.4%), who attained menarche at >11 years (17.1% vs 0%) and who are not doing regular physical activity(22.3% vs 9.2%). Multivariate binary logistic regression showed socioeconomic status, family size and physical activity are significant predictors of thinness. Conclusions: It can be concluded from this study that thinness was significantly high among adolescent girls with family size >5, who attained menarche at >11 years and who does not have the habit of doing regular physical activity.

Representações Sociais da Obesidade e Magreza entre Pessoas com Obesidade / Representations of Obesity and Thinness among People with Obesity

RESUMO Esta pesquisa teve como objetivo compreender as Representações Sociais da obesidade e magreza entre pessoas obesas. Foram realizadas entrevistas em profundidade, com questões sobre o que pensavam sobre a obesidade e a magreza, e foi aplicado um questionário com questões de caracterização dos participantes. Participaram do estudo 16 adultos de ambos os sexos, com idades entre 20 e 58 anos, considerados obesos. Os dados da entrevista foram analisados por Classificação Hierárquica Descendente, com a utilização do software IRaMuTeQ. A obesidade foi relacionada ao sofrimento, à não aceitação e à doença, e à magreza, ao bem-estar, à felicidade e à solução de todos os conflitos. Esta forma de pensar pode estar relacionada às práticas de cuidado com a saúde adotadas pelas pessoas.

Abstract Obese people often do not feel fully accepted in society. This research aimed at understanding the Social Representations of obesity and thinness among obese people. In-depth interviews were conducted with questions about what they thought about obesity and thinness, and a questionnaire was applied with questions to characterize the participants. Sixteen adults of both genders between the ages of 20 and 58 years old, considered obese participated in the study. The interview data were analyzed by Descending Hierarchical Classification using the IRaMuTeQ software. Obesity was related to suffering, not acceptance and disease, and thinness represents well-being, happiness and the solution of all conflicts. This way of thinking can be related to the health care practices adopted by people.

Valoración del estado nutricional antropométrico de escolares venezolanos de 3 a 18 años / Assessment of the anthropometric nutritional status of Venezuelan schoolchildren aged 3 to 18 years

Introducción. La insuficiencia de ingresos en la familia para alimentarse y la inoperancia del programa de alimentación escolar, son factores que afectan el estado nutricional y favorecen el ascenso de la deserción escolar. Objetivo. Determinar el estado nutricional de grupos de niños, niñas y adolescentes de 13 escuelas en comunidades vulnerables. Materiales y métodos. Estudio transversal descriptivo en 7.252 escolares de 3 a 18 años, siete en el estado Bolívar (EB) y seis Distrito Capital (DC) y Estado Miranda (EM), realizado entre mayo y junio, 2019. El análisis se realizó en preescolares de 3 a 5 años y en escolares de 6 a 18 años, según localidad y sexo. Se determinó el estado nutricional con peso-talla (P/T) y talla-edad (T/E) en preescolares y el Índice de Masa Corporal (IMC) en escolares. Valores de referencia y puntos de corte OMS. Resultados: El porcentaje de desnutrición aguda en preescolares fue (1,5%) en ambas localidades y el riesgo EB 3,1% y DC-EM 3,3%. RC 8,2%, más alto EB (8,5%) y en sexo masculino (8,2%). En escolares, la delgadez- delgadez severa (6%), la talla baja y muy baja (6,8%) y el sobrepeso muy bajo (1%-1,4%). Conclusión. En los preescolares, el RC supera la DA, resultados que resumen la magnitud del retraso en los primeros 1.000 días y el impacto de la desnutrición infantil que va dejando huella en la talla baja. Las cifras de desnutrición aguda, retraso de crecimiento y delgadez más bajas que en otros estudios, posiblemente reflejan la presencia de algunos factores de protección que se deben investigar(AU)

Introduction. Insufficient income in the family to feed themselves and the ineffectiveness of the school feeding program are factors that affect the nutritional status and favor the rise of school dropouts. Objective. Determine the nutritional status of a group of children and adolescents from 13 schools in vulnerable communities. Materials and methods. Descriptive cross-sectional study in 7,252 schoolchildren from 3 to 18 years old, seven in the Bolívar state (EB) and six in the Capital District (DC) and Miranda State (EM), carried out between May and June, 2019. The analysis was carried out in preschoolers of 3 to 5 years and in schoolchildren from 6 to 18 years, according to location and sex. Nutritional status was determined with weight-height (W/T) and height-age (T/E) in preschoolers and the Body Mass Index (BMI) in schoolchildren. Reference values and WHO cut-off points. Results: The percentage of acute malnutrition in preschool children was (1.5%) in both localities and the EB risk was 3.1% and DC-EM 3.3%. CR 8.2%, higher EB (8.5%) and male (8.2%). In schoolchildren, thinness-severe thinness (6%), short and very short stature (6.8%) and very low overweight (1%-1.4%). Conclusion. In preschool children, the CR exceeds the AD, results that summarize the magnitude of the delay in the first 1,000 days and the impact of child malnutrition that leaves its mark on short stature. The lower figures for acute malnutrition, growth retardation and thinness than in other studies possibly reflect the presence of some protective factors that should be investigated(AU)

Obsesión por la delgadez y la musculatura en mujeres, un estudio transcultural: Comparación entre Chile y España

RESUMEN Es cada vez más frecuente la exposición de los adultos emergentes a prácticas socioculturales que afectan su salud mental, cumpliendo un papel importante en la manifestación de la obsesión por la delgadez y la musculatura. Por ello, el propósito del estudio fue comparar la obsesión por la delgadez y la musculatura entre mujeres adultas emergentes universitarias de Chile y España respecto a factores socio-culturales, satisfacción corporal y variables psicológicas vinculadas a la imagen corporal. De esta forma, la presente investigación se realizó desde un enfoque cuantitativo, con un diseño no experimental transversal, de alcance correlacional, con una muestra compuesta por 230 participantes (n chilenas= 155; n españolas= 75). Los resultados evidenciaron una diferencia significativa entre ambos grupos en la obsesión por la musculatura, siendo mayor en España. El modelo predictivo de obsesión por la delgadez estuvo compuesto por las variables de perfeccionismo, satisfacción corporal en forma negativa, presión social de la familia, de los medios de comunicación y nacionalidad española, explicando así el 45% de la varianza, mientras que el modelo explicativo para obsesión por la musculatura permite predecir un 16% de su varianza a partir de la nacionalidad española, la obsesión por la delgadez, la presión social de la familia y la actividad física regular. Finalmente, se plantea la necesidad de fomentar indagaciones futuras y profundizar más en las temáticas que permitan prevenir en las jóvenes mujeres con mayor riesgo de padecer alguna de estas problemáticas.

ABSTRACT Exposure of emerging adults to sociocultural practices that affect their mental health is more and more frequent, playing an important role in the manifestation of a drive for thinness and muscularity. The purpose of the study was to compare the drive for thinness and drive for muscularity, among emerging adult university women from Chile and Spain. We evaluated socio-cultural factors, body satisfaction and psychological variables linked to body image using a quantitative approach, with a non-experimental cross-sectional design. We used a correlational-causal scope, with a sample of 230 participants (n Chileans= 155; n Spanish= 75). The results evidenced a significant difference between the two groups in drive for muscularity, being higher in Spain. The predictive model of drive for thinness was made up of the variables of perfectionism, negative body satisfaction, social pressure from the family, the media and Spanish nationality, explaining 45% of the variance. The model for drive for muscularity predicted 16% of the variance based on Spanish nationality, drive for thinness, social pressure from the family and regular physical activity. Finally, there is a need to encourage future inquiries and delve deeper into the issues that allow young women at higher risk of suffering from any of these problems to be prevented.

Non-suicidal self-injury in patients with eating disorders: nuclear aspects / Autolesiones no suicidas en pacientes con trastornos de la conducta alimentaria: Aspectos nucleares

Abstract Background: Through the culture of thinness, increasingly promoted in our society as a beauty canon, it is not surprising that the number of people affected by eating disorders is increasing. Objective: This research aims to study the relationship between non-suicidal self-injuries and nuclear aspects of eating disorders specified along with this article. Methods: The sample consisted of 60 women diagnosed with anorexia and bulimia. Questionnaires assessing impulsivity, body satisfaction, alexithymia, body attitude and self-esteem were administered. Participants with non-suicidal self-harm were compared with those without it, and participants with anorexia with and without self-harm and participants with bulimia with and without self-harm were compared. Results: Differences were found in body dissatisfaction= 5.71; p ≤0.01), body attitudes= 4.80; p ≤0.02), self-esteem= 14.09; p ≤0.00) and impulsivity (t= 3.39; p ≤0.01) between participants with and without non-suicidal self-harm. Conclusions: These are key factors for the clinical area in the treatment of eating disorders to prevent the presence of self-harm, as it allows focusing the treatment target on those aspects such as dissatisfaction and impulsivity, which are key in the development of self-harm.

Resumen Introducción: A través de la cultura de la delgadez, cada vez más promovida en nuestra sociedad como canon de belleza, no es de extrañar que este aumentado el número de personas afectadas por Trastornos de Conducta alimentaria. Objetivo: Estudiar la relación entre las autolesiones no suicidas y aspectos nucleares del trastorno de conducta alimentaria que se especifican a lo largo de este artículo. Métodos: La muestra ha sido formada por 60 mujeres diagnosticadas de anorexia y bulimia. Se administraron cuestionarios que evaluaban la impulsividad, satisfacción corporal, alexitimia, actitud corporal y autoestima. Se compararon aquellas participantes que presentaban autolesiones no suicidas con las que no lo presentaban, además se compararon participantes con anorexia con y sin autolesiones y participantes con bulimia con y sin autolesiones. Resultados: Se encontraron diferencias en insatisfacción corporal = 5,71; p ≤0.01), en actitudes corporales= 4.80; p ≤0.02), autoestima= 14.09; p ≤0.00) e impulsividad, (t= 3.39; p ≤0.01) entre participantes con y sin autolesiones no suicidas. Conclusiones: Estos son factores clave para la clínica en el tratamiento de los trastornos de conducta alimentaria para prevenir la presencia de autolesiones, ya que permite enfocar el objetivo del tratamiento a aquellos aspectos como la insatisfacción e impulsividad, que son claves en el desarrollo de autolesiones.

Los pacientes con delgadez constitucional presentan un fenotipo diferente al de los pacientes con trastornos de la alimentación / Patients with constitutional thinness have a different phenotype than patients with eating disorders

Los pacientes con delgadez constitucional suelen presentar un peso habitual reducido pero estacionario en el tiempo, con dificultad para aumentarlo incluso luego de someterse a dietas hipercalóricas. A diferencia de otras entidades, no se suelen encontrar trastornos de la alimentación, enfermedades sistémicas, desnutrición o sobre-ejercitación. Sin embargo, su presencia suele despertar preocupación y motivar la búsqueda de causas patológicas asociadas, tanto por parte delos pacientes como de los profesionales de la salud. Partiendo de la viñeta clínica de una paciente que presenta estas características, el autor realiza una búsqueda bibliográfica para intentar esclarecer cuán diferentes resultan los pacientes con delgadez constitucional de aquellos que presentan el principal diagnóstico diferencial a tener en cuenta, la anorexia nerviosa. (AU)

Patients with constitutional thinness tend to have a reduced but stationary habitual weight over time, with difficulty to increase it even after undergoing hypercaloric diets. Unlike other entities, eating disorders, systemic diseases, malnutrition or over-exercising are not usually found. However, its presence tends to arouse concern and motivates the search for associated pathological causes, both by patients and health professionals. Based on the clinical vignette of a patient who presents these characteristics, the author performs a literature search in order to clarify how different patients with constitutional thinness are from those who present the main differential diagnosis to consider:anorexia nervosa. (AU)

Factors Associated with Nutritional Status of Adolescent Schoolchildren in Tripura

Among 893 adolescent school children from 31 schools, 78.9%were found to have normal body weight; prevalence of thinnessand overweight were 8.1% and 13%, respectively. Compared tothe National reference, 95th percentile value of Body Mass Indexwas higher; while both weight and height were lower. Literacy,economic and physical activity status were the most significantpredictors influencing nutritional status.

Assessment of the Nutritional Status and Determinants of Malnutrition among School Going Adolescents in the Rural Field Practice Area of the Medical College, Hassan, Karnataka

Background andObjectives:Adolescence which is the transitional period between childhood and adulthood is often the neglected phase as the adolescents are often regarded as relatively healthy with the focus being given for children and women. Addressing the nutritional needs of adolescents could be an important step in curbing malnutrition among them. With the rising epidemic of Non-communicable diseases, it is equally important to address both the issues of under-nutrition and over-nutrition. Hence this study was undertaken to assess the nutritional status and associated risk factors of malnutrition among the school going adolescents from 5thto 12thstandard in the rural field practice area of Hassan Institute of Medical Sciences (HIMS), Hassan.Methods:A cross-sectional study was conducted among the school going adolescents attending the government and private schools of the rural field practice area of the medical college from January 2017 to June 2018. The sample size of 830 was divided between the three areas under rural field practice area as per sample size proportional to population. BMI was measured and WHO reference charts 2007 for BMI was used to categorize the nutritional status of the adolescents.Results:The prevalence of malnutrition among the school going adolescents was found to be 44.1% of which the prevalence of thinness and severe thinness was 15.8% and 21.3% respectively and that of overweight and obesity was 5.8% and 1.2% respectively. On logistic regression, male gender, government school, lower socio-economic status, deworming status and open-air defecation were identified as significant risk factors for undernutrition and female gender, private school, upper socio-economic status, low levels of physical activity, excess television watching, consuming junk foods, breakfast skipping, inadequate sleeping hours were identified as significant risk factors for overnutrition. Conclusion:The prevalence of malnutrition among the school going adolescentswas found to be 44.1% in our study. Gender, type of school in which they study, socio-economic status and life style behaviours were found to be significant risk factors for malnutrition. There is a need for health education programmes, regular monitoringand effective policies to promote healthy eating and lifestyle changes among adolescents to curb the burden of malnutrition

Association between Body Mass Index and Prevalence of Asthma in Korean Adults / 전남의대학술지

We evaluated the association between body mass index (BMI) and the prevalence of asthma. Using data from the 2015 Korean Community Health Survey, 214,971 participants aged between 19 and 106 years were included in this study. Asthma was defined based on the self-report of physician diagnosis. BMI was classified as underweight (<18.5 kg/m²), normal weight (18.5 kg/m²≤BMI<23.0 kg/m²), overweight (23.0 kg/m²≤ BMI<27.4 kg/m²), and obese (≥27.5 kg/m²) based on the BMI categories for Asians by the World Health Organization. Multiple logistic regression analysis was performed with sampling weights to evaluate the association between BMI and asthma after adjusting for age, educational level, income, type of residential area, smoking status, alcohol consumption, physical activity, hypertension, and diabetes. In men, BMI had an inverted J-shaped association with the prevalence of asthma, with an odds ratio of 1.88 (95% confidence interval [CI]: 1.89–2.24) for underweight and 1.12 (95% CIs: 0.97–1.29) for obesity. In women, BMI had a J-shaped association with the prevalence of asthma, with an odds ratio of 1.05 (95% CIs: 0.91–1.22) for underweight and 2.29 (95% CIs: 2.06–2.56) for obesity. In conclusion, in a nationally representative sample of Korean adults, the association between BMI and the prevalence of asthma varied between the sexes. This suggests that malnutrition and obesity are involved in the pathophysiology of asthma.

A community based study to assess the prevalence and sociodemographic factors influencing undernutrition among children aged 6 to 14 years in a rural area of Coimbatore

Background: Globally, malnutrition among school age children is a major public health concern. The objectives of the study were to determine the prevalence of under nutrition (thinness and stunting) among children aged 6 to 14 years in a rural area of Coimbatore district; to determine the socio-demographic factors influencing under nutrition (thinness and stunting) among these children.Methods: A community based- cross sectional study was conducted from December 2015 to July 2016 in the field practice area of PSG Rural Health Training Center Vedapatti. Out of the 14 villages in this area, five villages (clusters) were selected by cluster sampling. Data was collected from 702 children aged 6 to 14 years in these five villages using a structured questionnaire. Z score was used to calculate nutritional status. Thinness is defined as the BMI for age (BAZ) <-2SD.Stunting is defined as the Height-for-age (HAZ) <-2SD.The association of Thinness with socio-demographic factors were studied by univariate analysis. The association of Stunting with socio-demographic factors were studied by univariate analysis and logistic regression analysis.Results: The prevalence of Thinness was 15.5% (95%CI: 12.82% to 18.18%) and that of stunting was 18.8% (95%CI: 15.91% to 21.69%). In univariate analysis there was no statistically significant association between thinness and socio-demographic factors. Stunting showed statistically significant association with educational status (illiteracy) of mothers and working mothers in logistic regression analysis.Conclusions: The current study revealed that undernutrition as indicated by thinness and stunting was prevalent to some extent among these children. Stunting was significantly higher among those children whose mothers were illiterate and working. Health education and encouraging working mothers will help to solve this.

Evaluation of nutritional status of children aged 5-14 years in rural areas of Kanpur

Background: Despite India's 50% increase in GDP since 1991, more than one third of the world's malnourished children live in India. The prevalence of underweight children in India is among the highest in the world. In this endeavor, we have under-taken empirical research to evaluate the nutritional status of children aged 5-14 years and to improve nutritional status of children living in rural areas of Kanpur.Methods: This is a cross sectional study conducted amongst children aged 5-14 years in rural area of Kanpur. Children were examined clinically and height and weight were measured following standard procedures. MS Excel and Interactive statistics page were used for analysis of data.Results: Mean age of subjects (in years) was 10.09±2.57 and 9.43±2.42 of males and females respectively. Prevalence of underweight was 39.4%; underweight female (41.1%) and males (38.1%). Prevalence of stunting was 27.8%; girls 36.8% and males 20.3%. Thinness (BMI for age/sex <-2SD) was found in 26.6% of children. The prevalence of pallor was found in 27.5% subjects with Thinness. This association was found statistically significant (X2=6.250, p=0.001). Dental carries was found in 49 (13.61%) but in subjects with BMI < -2SD (thinness), 23 out of 92 had dental carries. This association was found statistically significant (X2=13.632, p=0.001).Conclusions: The problem of underweight is still high in rural areas. Total 27.8% children were stunted showing chronic malnutrition. This needs to be tackled through adequate nutrition and health education. Nearly 40 percent of the children were under-weight; an acute condition if not corrected at earlier stage may progress to severe form of malnutrition.

Body mass index and physical fitness in Brazilian adolescents / Índice de massa corporal e aptidão física em adolescentes brasileiros

Abstract Objective: Evaluate the relationship between body mass index and physical fitness in a cross-sectional sample of Brazilian youth. Methods: Participants were 3849 adolescents (2027 girls) aged 10 -17 years. Weight and height were measured; body mass index was calculated. Physical fitness was evaluated with a multistage 20 m shuttle run (cardiovascular endurance), standing long jump (power), and push-ups (upper body strength). Participants were grouped by sex into four age groups: 10 -11, 12 -13, 14 -15, and 16 -17 years. Sex-specific ANOVA was used to evaluate differences in each physical fitness item among weight status categories by age group. Relationships between body mass index and each physical fitness item were evaluated with quadratic regression models by age group within each sex. Results: The physical fitness of thin and normal youth was, with few exceptions, significantly better than the physical fitness of overweight and obese youth in each age group by sex. On the other hand, physical fitness performances did not consistently differ, on average, between thin and normal weight and between overweight and obese youths. Results of the quadratic regressions indicated a curvilinear (parabolic) relationship between body mass index and each physical fitness item in most age groups. Better performances were attained by adolescents in the mid-range of the body mass index distribution, while performances of youth at the low and high ends of the body mass index distribution were lower. Conclusion: Relationships between the body mass index and physical fitness were generally nonlinear (parabolic) in youth 10 -17 years.

Resumo Objetivo: Avaliar a relação entre o índice de massa corporal e a aptidão física em uma amostra transversal de jovens brasileiros. Métodos: Os participantes foram 3.849 adolescentes (2.027 meninas) entre 10-17 anos. Foram medidos o peso e a estatura e foi calculado o índice de massa corporal. A aptidão física foi avaliada com: a corrida vaivém de 20 metros de vários estágios (resistência cardiovascular), impulsão horizontal (energia) e flexões (força superior do corpo). Os participantes foram agrupados por sexo em quatro faixas etárias: 10-11, 12-13, 14-15 e 16-17 anos. A Anova específica para sexo foi usada para avaliar as diferenças em cada item de aptidão física entre as categorias de status do peso por faixa etária. As relações entre o índice de massa corporal e cada item de aptidão física foram avaliadas com os modelos de regressão quadrática por faixa etária com relação ao sexo. Resultados: A aptidão física de jovens magros e normais foi, com poucas exceções, significativamente melhor do que a aptidão física de jovens com sobrepeso e obesos em cada faixa etária por sexo. Por outro lado, os desempenhos na aptidão física não diferiram de forma consistente, em média, entre jovens magros e com peso normal e entre jovens com sobrepeso e obesos. Os resultados das regressões quadráticas indicaram uma relação curvilínea (parabólica) entre o índice de massa corporal e cada item de aptidão física na maior parte das faixas etárias. Os melhores desempenhos foram obtidos pelos adolescentes na faixa intermediária da distribuição do índice de massa corporal, ao passo que os desempenhos dos jovens nas extremidades inferiores e superiores da distribuição do índice de massa corporal foram menores. Conclusão: As relações entre o índice de massa corporal e a aptidão física foram, em geral, não lineares (parabólica) nos jovens entre 10-17 anos.

The double burden of malnutrition among adults in India: evidence from the National Family Health Survey-4 (2015-16) / 한국역학회지

OBJECTIVES: India still faces the burden of undernutrition and communicable diseases, and the prevalence of overweight/obesity is steadily increasing. The discourse regarding the dual burden of underweight and overweight/obesity has not yet been widely explored in both men and women. The present study assessed the determinants of underweight and overweight/obesity in India among adult men and women aged 15-49.METHODS: Population-based cross-sectional and nationally representative data from the National Family Health Survey-4 (2015-16), consisting of a sample of men and women, were analyzed. Stratified 2-stage sampling was used in the NFHS-4 study protocol. In the present study, bivariate and adjusted multinomial logistic regression analyses were performed to determine the correlates of underweight and overweight/obesity.RESULTS: The results suggested a persistently high prevalence of underweight coexisting with an increased prevalence of overweight/obesity in India. The risk of underweight was highest in the central and western regions and was also relatively high among those who used either smoking or smokeless tobacco. Overweight/obesity was more prevalent in urban areas, in the southern region, and among adults aged 35-49. Furthermore, level of education and wealth index were positively associated with overweight/obesity. More educated and wealthier adults were less likely to be underweight.CONCLUSIONS: In India, underweight has been prevalent, and the prevalence of overweight/obesity is increasing rapidly, particularly among men. The dual burden of underweight and overweight/obesity is alarming and needs to be considered; public health measures to address this situation must also be adopted through policy initiatives.

The Trends of Underweight in South Korean between 1998 and 2015

BACKGROUND: Underweight is associated with increased mortality, relative to the normal weight category. The importance of managing underweight patients has not yet been recognized seriously in South Korea, and little information is available on the prevalence of underweight and its associated risk factors. This study aims to investigate changes in the prevalence of underweight by gender and age and analyze its trend.METHODS: Data were obtained from individuals aged >20 years, from the Korean National Health and Nutrition Examination Survey between 1995 and 2015. The subjects of this study included 134,613 adults (male, 61,152; female, 73,461). The prevalence of underweight was determined as defined by the Asia-Pacific Perspective, and socioeconomic factors associated with a predisposition to underweight were analyzed using the chi-squared test and multiple logistic regression analysis.RESULTS: Among Korean adults, the age-adjusted prevalence of underweight (body mass index < 18.5 kg/m²) was 3.1% in men and 6.3% in women. Overall, a U-shaped relationship was established between the prevalence of underweight by gender and age. There was no significant difference in socioeconomic factors related to the prevalence of underweight in men and women in their twenties. The prevalence of underweight in women aged 20–59 years showed an increasing trend (P for trends < 0.05).CONCLUSION: In individuals aged 20–29 years, the prevalence of being underweight was higher in women than in men. Recently, there has been an increasing trend in the prevalence of underweight young women of reproductive age. This requires national public health attention.

The Distribution of Weight Status according to Familial Socioeconomic Status in Korean Adolescents: The Twelfth Korea Youth Risk Behavior Web-based Survey, 2016

BACKGROUND: The influence of socioeconomic status (SES) on weight status varies depending on the countries' levels of social and economic development. There are many studies on a risk of adolescent obesity according to familial SES in Korea. However, it is not clarified what effects familial SES has on a risk of underweight in Korean adolescents. This study investigated the distribution of weight status including obesity and underweight according to familial SES in Korean adolescents. METHODS: This cross-sectional study involved 63,741 adolescents who participated in the 2016 Korea Youth Risk Behavior Wed-based Survey. The data on height, weight, familial SES, current smoking status, current alcohol intake, physical activity, breakfast skipping, perceived stress, depressive mood, and living with family were obtained through online questionnaires. The assessment of familial SES was based on perceived household economic status and parental education level. RESULTS: In boys, low household economic status was related to a high proportion of obesity (odds ratio [OR] 1.14, 95% confidence interval [CI] 1.04–1.25) and underweight (OR 1.31, 95% CI 1.14–1.51). Girls with low household economic status were more likely to be obese (OR 1.81, 95% CI 1.61–2.03) and overweight (OR 1.41, 95% CI 1.23–1.60) but, although not statistically significant, less likely to be underweight (OR 0.88, 95% CI 0.75–1.04). CONCLUSIONS: This study showed that adolescents with low familial SES were at a high risk of obesity and underweight. A risk of underweight was increased in boys with low familial SES but in girls with high familial SES.

Comparison of body composition and adipokine levels between thin and normal-weight prepubertal children / Comparação da composição corporal e dos níveis de adipocina entre crianças pré-púberes magras e com peso normal

Abstract Objective: Thinness can have substantial consequences for child development and health. Adipokines, including leptin and adiponectin, play a significant role in the regulation of important metabolic functions. The aim of this study was to investigate associations between body composition and serum leptin and adiponectin levels in thin and normal-weight children. Methods: The authors examined 100 healthy prepubertal children, who were divided into two subgroups: thin (n = 50) and normal-weight children (n = 50). Body composition was assessed by dual-energy X-ray absorptiometry. Serum concentrations of adipokines were determined by immunoenzymatic assays. Results: Thin children had a similar body height but significantly lower (p < 0.0001) body weight, body mass index, fat mass, lean mass, and bone mineral content compared with normal-weight children. Serum concentrations of leptin were about 2-fold lower (p < 0.0001) in thin vs. normal-weight subjects. Serum levels of total adiponectin, adiponectin multimers, and soluble leptin receptor (sOB-R) were similar in both groups. The leptin/soluble leptin receptor ratio and leptin/adiponectin ratios were lower (p < 0.0001) in thin vs. normal-weight children. In both groups of children, it was found that body composition parameters were positively related with leptin but not with adiponectin levels. Additionally, bone mineral content was positively related with body mass index, fat mass, lean mass, and leptin level in thin and normal-weight children. Conclusions: Prepubertal thin children have disturbances in body composition and adipokine profile. Early recognition of thinness and determination of body composition parameters and adipokine levels can be useful in medical and nutritional care of thin children for the optimization of bone mineral accrual.

Resumo Objetivo: A magreza pode ter consequências substanciais para o desenvolvimento e a saúde das crianças. As adipocinas, inclusive a leptina e a adiponectina, desempenham um papel significativo na regulação de importantes funções metabólicas. O objetivo do estudo foi investigar as associações entre a composição corporal e os níveis séricos de leptina e adiponectina em crianças magras e com peso normal. Métodos: Examinamos 100 crianças pré-púberes saudáveis, divididas em dois subgrupos: crianças magras (n = 50) e com peso normal (n = 50). A composição corporal foi avaliada pelo método de absorciometria de dupla energia de raios X. As concentrações séricas das adipocinas foram determinadas por ensaios imunoenzimáticos. Resultados: As crianças magras apresentaram altura semelhante, porém peso corporal (p < 0,0001), índice de massa corporal (IMC), massa gorda, massa magra e conteúdo mineral ósseo (CMO) significativamente menores em comparação com crianças com peso normal. As concentrações séricas de leptina foram aproximadamente duas vezes mais baixas (p < 0,0001) em indivíduos magros do que em crianças com peso normal. Os níveis séricos de adiponectina total, multímeros de adiponectina e receptor de leptina solúvel (sOB-R) foram semelhantes em ambos os grupos. Os índices de leptina/sOB-R e leptina/adiponectina foram inferiores (p < 0,0001) em crianças magras do que crianças com peso normal. Em ambos os grupos de crianças descobrimos que os parâmetros de composição corporal estavam positivamente relacionados à leptina, porém não aos níveis de adiponectina. Além disso, observamos que o CMO estava positivamente relacionado ao IMC, à massa gorda, à massa magra e ao nível de leptina em crianças magras e com peso normal. Conclusões: As crianças pré-púberes magras têm alterações na composição corporal e no perfil de adipocinas. O reconhecimento precoce da magreza e a determinação dos parâmetros de composição corporal e dos níveis de adipocina podem ser úteis no cuidado médico e nutricional de crianças magras para aprimoramento do acúmulo mineral ósseo.

Prevalence of Obesity and Overweight Among School Children Aged 8-18 Years in Rajkot, Gujarat.

A total of 1496 school children aged 8-18 years (79.1% boys) participated in this study. Prevalence of obesity and overweight was estimated by using three different growth standards. Revised IAP 2015 growth standards detected more obese and overweight children than WHO 2007 and IOTF standards.

Drive for thinness and pursuit of muscularity: the role of gender ideologies / Impulso a la delgadez y búsqueda de la muscularidad: el rol de las ideologías de género

The female sociocultural beauty ideal is ultra-thin, while the male beauty ideal is related with a muscular body. In this paper it is argued that these differences may be explained by the gender ideology that men and women have. Data obtained from 615 female students (with a Body Mass Index between 18 and 30) revealed that participants high in a gender ideology scale reported greater drive for thinness and less pursuit of muscularity. In addition, women with low scores in a gender ideology scale showed the opposite pattern: high scores on pursuit of muscularity and low in drive for thinness. Finally, it is discussed why men and women adopt different strategies to deal with these beauty ideals.

El ideal sociocultural femenino es ultra delgado, mientras que el ideal masculino tiene que ver con tener un cuerpo musculado. En este articulo se argumenta que estas diferencias pueden ser explicadas por las ideologías de genero que tienen hombres y mujeres. Los datos obtenidos de 615 mujeres estudiantes (con un Indice de Masa Corporal entre 18 y 30) mostraron que las participantes altas en una escala de ideología de género informaban de un mayor impulso a la delgadez y menos búsqueda de la muscularidad. Además, las mujeres con marcadores bajos en una escala de ideología de genero mostraban el patrón opuesto: puntuaciones altas de búsqueda de la muscularidad y bajas en impulso a la delgadez. Finalmente, se discute porqué hombres y mujeres adoptan diferentes estrategias para lidiar con estos ideales de belleza.

Insatisfacción corporal, autoestima y depresión en niñas con obesidad / Body dissatisfaction, self-esteem, and depression in girls with obesity

Resumen: El propósito de la presente investigación fue estudiar la posible asociación entre los constructos insatisfacción corporal, autoestima y depresión en niñas con obesidad. Participaron 231 preadolescentes de entre 10 y 13 años de edad de la Ciudad de México, a quienes se clasificó en los grupos obesidad, sobrepeso y peso normal para el primer análisis, y en 4 grupos de acuerdo con su índice de masa corporal y sus niveles de insatisfacción corporal para el segundo análisis. Las participantes respondieron el Cuestionario de imagen corporal BSQ-16, la Prueba de autoestima infantil y la Escala de depresión del Centro de Estudios Epidemiológicos. Por medio de análisis de varianza se encontró que las niñas con sobrepeso y aquellas con obesidad presentaron más insatisfacción corporal que sus pares con peso normal. Las niñas de cualquier peso y mayor insatisfacción corporal mostraron menor autoestima y más síntomas de depresión que aquellas con insatisfacción corporal no elevada. La obesidad se asoció con la insatisfacción corporal de las preadolescentes, y solo se relacionó con su autoestima y depresión cuando existieron niveles altos de insatisfacción corporal. Sin embargo, la insatisfacción corporal no medió la relación entre la obesidad y la autoestima, ni entre la obesidad y la depresión.

Abstract: The purpose of this research was to study the potential association between the constructs body dissatisfaction, self-esteem and depression in girls with obesity. Participants were 231 preadolescents aged 10 to 13 years from Mexico City, who were ranked into the Obesity, Overweight and Normal Weight groups for the first analysis, and into four groups according to their body mass index and levels of body dissatisfaction for the second analysis. Participants completed the Body Shape Questionnaire-16, the Child Self-Esteem Test and the Center for Epidemiologic Studies Depression Scale. Through analysis of variance, girls with overweight and those with obesity reported more body dissatisfaction than their peers with normal weight. Girls with any weight and higher levels of body dissatisfaction showed lower self-esteem and more symptoms of depression than those with no-high body dissatisfaction. Obesity was associated to body dissatisfaction in female preteens, and only when there were high levels of body dissatisfaction, obesity was also related to girls' self-esteem and depression. However, body dissatisfaction did not mediate the relationship between obesity and self-esteem, neither between obesity and depression.