Differences in body dissatisfaction between individuals with and without stigma toward obesity: A study of preadolescents and adolescents.

INTRODUCTION: Previous studies have focused on understanding the biopsychosocial implications of obesity stigma and have made proposals to minimize its negative consequences, as well as recommendations to eliminate or reduce this stigma; however, knowing which individuals stigmatize obesity and why will allow us to have a broader picture of stigmatization and thus help in planning interventions with greater impact. OBJECTIVE: The aims were to describe the stigmatization toward obesity in preadolescents and adolescents and to determine whether there are differences in body dissatisfaction, abnormal eating behaviors and self-esteem among those with and without stigma toward obesity. METHODS: A total of 307 preadolescents and 349 adolescents answered a set of questionnaires that evaluated abnormal eating behaviors, body dissatisfaction, self-esteem and stigma. RESULTS: Fifty-nine percent of the participants stigmatized individuals with obesity, with preadolescents having the greatest stigma levels. Differences were observed only in body dissatisfaction, where the group of preadolescents who stigmatized individuals with obesity and the group of adolescents who did not stigmatize individuals with obesity reported higher levels of body dissatisfaction. CONCLUSION: Obesity is stigmatized at early ages, regardless of sex; however, preadolescents with stigma toward obesity and adolescents without stigma toward obesity have greater body dissatisfaction, indicating that body dissatisfaction plays a crucial role in the stigmatization of obesity. LEVEL OF EVIDENCE: Level V, cross-sectional analytical study.

Cognitive remediation therapy in Mexico as a treatment for Anorexia Nervosa: A case study.

The purpose of this study was to conduct a preliminary evaluation of cognitive remediation therapy (CRT) as part of the treatment of a patient with anorexia nervosa (AN) from Mexico. The participant was a 21-year-old woman with a body mass index (BMI) of 14.7, who had suffered from the disorder for 10 years. Using a pre-post treatment design, changes were evaluated using four neuropsychological tests, two tests to measure the AN symptoms and two to measure psychological distress (depression and anxiety). BMI was also evaluated before and after the intervention. The results of the present study were similar to those reported for patients from English-speaking countries. The average percentage of favorable change in the different measures was higher than 30%, except for BMI, which increased by only 21%. The results suggest that the inclusion of CRT in AN treatment programs in Mexico is a potentially viable option.

Children with obesity: peer influence as a predictor of body dissatisfaction.

PURPOSE: To analyze self-esteem, as well as the different peer influence components (messages, interactions and likability) as predictors of body dissatisfaction in children with obesity. METHOD: A total of 123 children aged between 10 and 12 years were divided into two groups according to their body mass index. The group with obesity was comprised of 36 boys and 21 girls and the group with normal weight of 32 boys and 34 girls. All of the participants answered the Body Shape Questionnaire-16, the Inventory of Peer Influence on Eating Concerns, and the Rosenberg Self-Esteem Scale. RESULTS: The hierarchical multiple regression analysis for each group showed that likability and peer messages explain 67% of the body dissatisfaction variance in children with obesity and 54% in children with normal weight. CONCLUSION: Peer influence predicted body dissatisfaction in children; however, children with obesity assimilate messages from their peers differently compared with children with normal weight.

Psychometric evaluation of the muscle appearance satisfaction scale in a Mexican male sample.

PURPOSE: The purpose of this study was to determine whether the muscle appearance satisfaction scale (MASS) shows acceptable psychometric properties in Mexican bodybuilders. METHODS: A total of 258 Mexican male bodybuilders were recruited. Two self-report questionnaires, including the MASS and drive for muscularity scale (DMS), were administered. Six models of the latent structure of the MASS were evaluated, using confirmatory factor analysis with maximum likelihood, considering robust Satorra-Bentler correction to estimate the fit of the models to the data. RESULTS: Similar to the original MASS, the series of CFA confirmed that the Mexican version was well represented with the 17-item five-factor structure, which showed a good model fit [Satorra-Bentler Chi-square (109, n = 258) = 189.18, p < 0.0001; NNFI = 0.91; CFI = 0.93; IFI = 0.93; RMSEA = 0.05 (0.04, 0.07)]. Internal consistency was estimated with McDonald's omega, which was acceptable for the MASS (0.88), and their subscales (0.80 to 0.89), except for muscle checking scale (0.77). Test-retest reliability analysis showed stability of the MASS total as well as of the subscale scores over a 2-week period (intraclass correlation coefficients = 0.75-0.91). Construct validity was demonstrated by a significant positive correlation between MASS and DMS results (r = 0.75; p = 0.0001). These results were similar to those of previous studies, which demonstrate the scale's usefulness. CONCLUSIONS: Our results support the suitability of the MASS and its subscales to measure muscle dysmorphia symptoms in Mexican male bodybuilders.

Psychometric properties of the drive for muscularity scale in Mexican males.

This study refers to the evaluation of the psychometric properties of the Drive for Muscularity Scale among Mexican population. The exploratory factor analysis was carried out with 369 university males (mean age = 20.93 years). A three-factor structure that explains 45.64 % of the variance was found for the scale: 31.10 % by attitudes (α = 0.87), 10.70 % by substance intake (α = 0.72) and 3.84 % by training adherence (α = 0.68). Only the two first sub-scales and total score (α = 0.86) offered acceptable levels of internal consistence. The confirmatory factor analysis, carried out with 200 males (mean age = 20.79 years), verified both the suitability of this factor structure and the two-factor structure proposed by McCreary et al. (Psychol Men Masc 5:49-58, 1). Drive for muscularity is important in comprehending male body image and Drive for Muscularity Scale has demonstrated to be psychometrically suitable to assess this construct in Mexican males.

Terapia de remediación cognitiva en bulimia nerviosa: Un estudio de caso / Cognitive remediation therapy in bulimia nervosa: A case study

Resumen El objetivo de este estudio fue realizar una evaluación preliminar de la terapia de remediación cognitiva (TRE) en una paciente con bulimia nerviosa (BN). Bajo un diseño pre-post-tratamiento, la paciente (20 años de edad e índice de masa corporal [IMC] de 22.41) completó cuatro pruebas neuropsicológicas, tres medidas de síntomas de BN y dos de sintomatología psiquiátrica (depresión y ansiedad). Con base a las puntuaciones pre y post TRE fue calculado el cambio clínico objetivo (CCO). Los principales efectos neuropsicológicos se registraron en: flexibilidad de pensamiento, proceso visocontructivo, coherencia central y planificación (CCO = 0.39-0.99). También se identificaron cambios relevantes en las medidas de sintomatología psiquiátrica y de BN (CCO = 0.53-0.88), no así en el IMC. Este estudio suma evidencias respecto a la utilidad de la CRT en el tratamiento multidisciplinario, ya no solo de la anorexia nerviosa, sino que extiende su aplicabilidad a la BN.

Abstract The aim of this study was to perform a preliminary evaluation of cognitive remediation therapy (CRT) in a patient with bulimia nervosa (BN). The participant was 20 years old with a 22.41kg/m2 body mass index (BMI). Under a pre-post treatment design, the patient was administered four neuropsychological tests, three measures of BN symptoms and two of psychiatric symptomatology (depression and anxiety). Based on the pre and post CRT scores, the objective clinical change (OCC) was calculated. The main neuropsychological effects were observed in cognitive flexibility, visoconstructive processing (memory and central coherence) and working memory (OCC = 0,39-0,99). Relevant changes were also identified in the measures of psychiatric symptomatology and BN (OCC = 0,53-0,88), with no change in BMI. This study adds evidence regarding the usefulness of CRT in the multidisciplinary treatment not only of anorexia nervosa, but also extends its applicability to another eating disorder, BN.

A two-stage epidemiologic study on prevalence of eating disorders in female university students in Mexico.

OBJECTIVE: This study investigated the prevalence of eating disorders (ED) in women. METHOD: Two samples of university students (1995, n = 522; 2002, n = 880) completed the Eating Attitudes Test and the Bulimia Test (BULIT; Stage 1). During Stage 2, the women that exceeded the cut-off point of one or both questionnaires and a random sample of women that did not exceed the cut-off point were interviewed. RESULTS: The results showed a prevalence rate of 0.49% for ED in 1995 (0.14% for bulimia nervosa [BN] and 0.35% for EDs not otherwise specified [EDNOS]) and a prevalence rate of ED of 1.15% in 2002 (0.24% for BN and 0.91% for EDNOS). Anorexia nervosa was not found in either of the evaluated periods. Nevertheless, the results must be taken with reservation since there was a high rate of loss to follow-up (second stage). DISCUSSION: The data of this study support the findings of other studies, including studies with Spanish-speaking samples, that EDNOS is the most common ED followed by BN and AN.

[Muscle Dysmorphia and Use of Ergogenics Substances. A Systematic Review]. / Dismorfia muscular y uso de sustancias ergogénicas. Una revisión sistemática.

The use of ergogenic substances (UES) is not restricted to achieving a better athletic performance, but also it is a behavior for body changing through muscle development; however, little is known about the relationship between muscle dysmorphia (MD) and UES. Therefore, it was conducted a systematic review of those empirical papers that have studied this relationship over the last decade (2004-2014). First it is highlighted that of the 22 articles analyzed, only 13 explicitly aimed this interest. Besides, although the documented data outlined some relevant aspects such as the existence of a high co-occurrence (60-90%) between MD and UES. In general, the evidence is still incipient and uncertain, mainly because of the large disparity between the methodologies of the studies, particularly in terms of indicators, parameters and measures utilized to assess UES within the context of MD.

Composición corporal, presencia de anorexia nerviosa y sintomatología asociada en bailarines de danza folclórica / Body composition, presence of anorexia nervosa and associated symptoms in folkloric dancers

Resumen Dada la exigencia en la disciplina dancística sobre los requerimientos corporales del bailarín, se han llevado a cabo diversos estudios sobre trastornos alimentarios (TA), sin embargo, son escasos los datos en bailarines de danza folklórica. Por tal motivo, el objetivo del presente trabajo fue conocer la composición corporal, imagen corporal, sintomatología y presencia de anorexia nerviosa en bailarines de danza folklórica profesionales (n = 37), recreativos (n = 37) y en muestra comunitaria (n = 37). El estudio se llevó a cabo en dos fases, en la primera se aplicaron los instrumentos EAT-26 y BSQ, además, se calculó el porcentaje de grasa corporal (PGC), el índice de masa corporal (IMC) y la masa muscular esquelética (MME). En la segunda fase se entrevistaron a aquellos que rebasaron punto de corte del EAT-26 y/o BSQ así como a un grupo control de la misma muestra que no haya rebasado ningún punto de corte para descartar falsos negativos. Solo se encontraron diferencias entre grupos en IMC y en PGC. De acuerdo con las entrevistas, ningún participante fue diagnosticado con anorexia nerviosa pero sí con sintomatología de TA. Se concluye que los estándares corporales exigidos en danza folklórica, son lo suficientemente altos como para que los bailarines realicen conductas de riesgo que podrían comprometer su salud física y psicológica.

Abstract Given the strict discipline in dancing activities and on the body requirements, wide research has been performed on eating disorders (ED) in this field, however, data on folk dancers are scarce. For this reason, the aim of this study was to know the body composition, body image, symptomatology and presence of anorexia nervosa in professional folkloric dancers (n = 37), recreational dancers (n = 37) and in a community sample (n = 37). The study was carried out in two phases, in the first one, the EAT-26 and BSQ instruments were administered, in addition, the body fat percentage (BFP), the body mass index (BMI) and the skeletal muscle mass (SMM) were obtained. In the second phase, those who exceeded the cut-off point of EAT-26 and/or BSQ were interviewed, as well as a control group of the same sample that did not scored above the cut-off point of any instrument to detect false negatives. Differences were only found between groups in BMI and BFP. According to the interviews, no participant was diagnosed with anorexia nervosa, but they were diagnosed with ED symptoms. It is concluded that the body standards required in folk dance are high enough for dancers to perform risky behaviors that could compromise their physical and psychological health.

Revisión de instrumentos de imagen corporal masculina / Male Body Image Instrument Review

Resumen Para comprender la forma en que piensan y actúan las personas excesivamente preocupadas por su musculatura, es importante contar con instrumentos de medición apropiados. Por esto, el objetivo de este estudio fue examinar la literatura publicada sobre las propiedades psicométricas de las medidas desarrolladas para evaluar la imagen corporal masculina, la motivación por la musculatura y la dismorfia muscular. Para la inclusión de los instrumentos a analizar, se aplicaron los criterios propuestos por Cafri y Thompson (2004). Los instrumentos fueron clasificados en tres grandes grupos: insatisfacción muscular, motivación por la musculatura y dismorfia muscular. Para describir los instrumentos, se consideró la descripción de la escala, sus datos psicométricos obtenidos por los desarrolladores y evidencia psicométrica adicional, con énfasis en poblaciones hispanas y latinas. De los 14 instrumentos que existen para medir insatisfacción muscular, motivación por incrementar la musculatura o sintomatología de dismorfia muscular, solo siete han sido evaluados psicométricamente en muestras hispanas o latinas. En general, todos los instrumentos poseen adecuadas propiedades psicométricas para evaluar los constructos insatisfacción muscular, motivación por la musculatura y dismorfia muscular.

Abstract To understand how people who are overly concerned about their musculature think and act, it is important to have appropriate measuring instruments. Therefore, the objective of this study was to examine the published literature on the psychometric properties of the measures developed to assess male body image, drive for muscularity and muscle dysmorphia. For the inclusion of the measures to analyze, the criteria proposed by Cafri and Thompson (2004) were applied. The instruments were classified into three main groups: muscle dissatisfaction, drive for muscularity and muscle dysmorphia. To describe the instruments, we considered the description of the scale, their psychometric data obtained by the developers, and additional psychometric evidence, with emphasis on Hispanic and Latino populations. Of the 14 instruments that exist to measure muscular dissatisfaction, drive for muscularity or symptomatology of muscular dysmorphia, only seven have been evaluated psychometrically in Hispanic or Latin samples. In general, all instruments have adequate psychometric properties to evaluate the constructs muscle dissatisfaction, muscle motivation and muscle dysmorphia.

Body dissatisfaction and quality of life: contribution to the occurrence of anomalous eating behaviors in administrative personnel in hospitals / Insatisfacción corporal y calidad de vida: contribución a la ocurrencia de conductas alimentarias anómalas en administrativos hospitalarios

Abstract The purpose of this study involved assessing the predictive capacity of the body mass index (BMI), body image, positive and negative affect, attitudes toward obese individuals and quality of life (QL) related to the anomalous eating behaviors of administrative personnel of Mexico City's health sector; aside from knowing gender differences and BMI in study variables. A total of 181 administrative employees took part in the study, divided according to their BMI (normal weight, overweight, obese) who filled out a personal data sheet and self-report questionnaires. Findings of this study indicate that body dissatisfaction, along with the perception of vitality and physical well-being may partially explain the presence of the anomalous eating behaviors that promotes excessive weight gain. Additionally, significant differences in positive affect were observed between sexes, aside from differences between the obese and normal weight groups regarding body dissatisfaction, negative affect, physical performance, physical role and social performance.

Resumen El objetivo del presente estudio consistió en evaluar la capacidad predictiva de variables como el índice de masa corporal (IMC), la imagen corporal, el afecto positivo y negativo, las actitudes hacia la gente obesa y la calidad de vida (CV) sobre las conductas alimentarias anómalas del personal administrativo del sector salud en la Ciudad de México, además de conocer las diferencias entre los sexos y del IMC en las variables de estudio. En total, participaron 181 trabajadores administrativos, divididos según su IMC (normopeso, sobrepeso, obesidad), que completaron una hoja de datos generales y cuestionarios de autorreporte. En general, se encontró que la insatisfacción de la imagen corporal, aunada a la percepción de vitalidad y bienestar físico, podría explicar en parte la presencia del comportamiento alimentario anómalo, el cual favorece a la ganancia excesiva de peso corporal. Adicionalmente, se observaron diferencias significativas entre los sexos en el afecto positivo, además de diferencias entre el grupo con obesidad y el grupo normopeso en insatisfacción corporal, afecto negativo, funcionamiento físico, rol físico y funcionamiento social.

Influencia de pares en preadolescentes y adolescentes: Un predictor de la insatisfacción corporal y las conductas alimentarias anómalas / Peer influence in preadolescents and adolescents: A predictor of body dissatisfaction and disordered eating behaviors

Los pares contribuyen a la presencia de insatisfacción corporal y conductas alimentarias anómalas, mismas que tienen su pico de ocurrencia durante la adolescencia; sin embargo, se ha sugerido que los pares pueden incidir desde edades más tempranas. Por ello, los propósitos de este estudio fueron: evaluar la influencia de pares, la interiorización del ideal corporal, la insatisfacción corporal y las conductas alimentarias anómalas en preadolescentes vs. adolescentes; y analizar la influencia de pares en la predicción de la insatisfacción corporal y las conductas alimentarias anómalas. Participaron 273 preadolescentes y 175 adolescentes, hombres y mujeres, quienes completaron cuatro cuestionarios, además de recabar su peso y estatura. La prueba t de Student solo reveló diferencias entre los grupos en índice de masa corporal, interacción con pares, interiorización del ideal corporal y conductas alimentarias anómalas, siendo los adolescentes quienes obtuvieron mayores puntuaciones en las primeras tres variables. Los análisis de senderos mostraron que en ambos grupos los pares tuvieron efecto directo sobre la insatisfacción corporal, misma que actuó como mediadora del efecto sobre el comportamiento alimentario. Se concluye que la insatisfacción corporal no difiere entre preadolescentes y adolescentes, y que en ambos la influencia de pares mostró ser un importante factor predictor.

Peers contribute to the development of body dissatisfaction and disordered eating behaviors, conditions that show their peak occurrence during the adolescence; however, literature has suggested that peers may influence since earlier ages. Therefore, the objective of this study was to evaluate peer influence, internalization of the body ideal, body dissatisfaction and disordered eating behaviors, in preadolescents vs. adolescents; and to analyze the peer influence in the development of disordered eating behaviors and body dissatisfaction. A total of 273 preadolescents and 175 adolescents' men and women answered four questionnaires, additionally weight and height was measured. The t Student test showed differences between groups only in body mass index, interaction with peers, internalization of body ideal and eating behaviors, being adolescents who obtained higher scores in the first three variables. Path analysis showed that in both groups peers influenced body dissatisfaction, which act as a mediator of disordered eating behavior. It is concluded that body dissatisfaction is not different between preadolescents and adolescents and in both groups peer influence was an important predictive factor.

Muscle dysmorphia and use of ergogenics substances. A systematic review / Dismorfia muscular y uso de sustancias ergogénicas. Una revisión sistemática

Abstract The use of ergogenic substances (UES) is not restricted to achieving a better athletic performance, but also it is a behaviour for body changing through muscle development; however, little is known about the relationship between muscle dysmorphia (MD) and UES. Therefore, it was conducted a systematic review of those empirical papers that have studied this relationship over the last decade (2004-2014). First it is highlighted that of the 22 articles analysed, only 13 explicitly aimed this interest. Besides, although the documented data outlined some relevant aspects such as the existence of a high co-occurrence (60-90%) between MD and UES. In general, the evidence is still incipient and uncertain, mainly because of the large disparity between the methodologies of the studies, particularly in terms of indicators, parameters and measures utilised to assess UES within the context of MD.

Resumen El uso de sustancias ergogénicas (USE) no se restringe a la consecución de un mayor desempeño atlético, actualmente también es una conducta de cambio corporal, vía el desarrollo muscular; no obstante, poco se sabe de la relación entre dismorfia muscular (DM) y USE. Por tanto se realizó una revisión sistemática de los estudios empíricos que, durante la última década (2004-2014), la han examinado. De entrada, destaca el hecho de que, de los 22 artículos analizados, solo en 13 se explicita este interés. Además, aunque los datos documentados delinean algunas vertientes relevantes, como la existencia de una alta concomitancia (60-90%) de DM y USE, en general las evidencias son aún incipientes e inciertas, principalmente debido a la gran disparidad metodológica entre estudios y, particularmente, en cuanto a los indicadores, los parámetros y las medidas que, en el contexto de la DM, se han venido empleando para evaluar USE.

Systematic review of disordered eating behaviors: Methodological considerations for epidemiological research / Revisión sistemática de las conductas alimentarias de riesgo: consideraciones metodológicas para la investigación epidemiológica

Disordered eating behaviors (DEB) such as dieting, fasting, laxatives or diuretics abuse, self-induced vomiting and binge eating may lead serious physiological and psychological consequences in individuals. Epidemiological data helps to the understanding of the magnitude of this problem within population; however point prevalence rates and the trend of DEB are still a subject of constant debate. Therefore the aim of this study is to systematically review empirical studies that have estimated the prevalence of DEB in women and provide some methodological considerations for future epidemiological studies. The search of articles was made through MEDLINE and SCIENCE DIRECT databases from 2000 to 2013. According to inclusion and exclusion criteria 20 studies were reviewed. Results yielded that the point prevalence range of dieting (0.6-51.7%), fasting (2.1-18.5%) and binge eating (1.2-17.3%) are higher than purgative behaviors (0-11%). However finding a trend in DEB over time was difficult since methodologies were significantly different. Methodological considerations for future research in DEB are proposed.

Las conductas alimentarias de riesgo (CAR) de los trastornos alimentarios, tales como dieta, ayuno, abuso de laxantes o diuréticos, vómito autoinducido y atracón, pueden causar graves consecuencias fisiológicas y psicológicas en el individuo. Los datos epidemiológicos ayudan a la comprensión de la magnitud de este problema en la población, sin embargo las tasas de prevalencia puntual y la tendencia de las CAR aún son tema de constante debate. Por lo tanto, el objetivo del presente estudio es revisar sistemáticamente estudios empíricos que estimen la prevalencia de las CAR en mujeres y proveer consideraciones metodológicas para futura investigación epidemiológica. La búsqueda de artículos fue a través de las bases de datos de MEDLINE y SCIENCEDIRECT de 2000 a 2013. Con base en los criterios de inclusión y exclusión 20 estudios fueron analizados. Los resultados arrojaron que el rango de la prevalencia puntual para dieta (0,6-51,7%), ayuno (2,1-18,5%) y atracón (1,2-17,3%) son mayores que el de las conductas purgativas (0-11%). Sin embargo, fue difícil encontrar una tendencia en las CAR a través del tiempo debido a que las metodologías utilizadas fueron significativamente diferentes. Se proponen consideraciones metodológicas para futuras investigaciones en CAR.

[Body image and eating disorders]. / Imagen Corporal y Trastornos de la Conducta Alimentaria.

OBJECTIVE: Assessing the association of age and weight with internalisation of the ideal of being thin, bodily dissatisfaction and eating disorder symptoms amongst three groups of females: teenage, young and adult women. MATERIAL AND METHODS: 145 females participated, ranging in age from 12 to 46, who answered four self-reporting questionnaires aimed at measuring symptoms of anorexia nervosa, bulimia nervosa, the ideal of being thin and bodily dissatisfaction. The participants' weight and height were also recorded for calculating their body mass index. Data analysis included descriptive and inferential statistics, specifically Spearman correlation and Kruskal-Wallis test. RESULTS: Being an older woman was associated with high internalisation of ideally being thin and bodily dissatisfaction; however, it was not correlated with eating disorder symptoms. Comparisons between groups showed that adult females were more dissatisfied with their bodies and their attitudes towards being thin; however, their attitudes and behaviour concerning abnormal eating were just as inappropriate as that amongst teenagers. CONCLUSIONS: These findings show the need for research into attitudes towards eating amongst adult women because they use extreme methods for controlling weight which may result in higher health risks.

Confiabilidad y validez de constructo de la Escala de Modificación Corporal en varones adolescentes / Reliability and constuct validity of the Body Modification Scale in adolescent males

En diversos países se ha constatado no sólo la adopción de estrategias de cambio corporal por parte de los varones, sino que éstas pueden responder a distintas intenciones: perder peso, ganar peso e incrementar tono o masa muscular. Sin embargo, son escasos los instrumentos que permiten evaluar diferencialmente estos aspectos. Por tanto, el propósito de esta investigación fue obtener una versión en español de la Body Modification Scale (BMS), así como examinar sus propiedades psicométricas en varones adolescentes. El primer estudio comprendió la traducción, adaptación y aplicación piloto de la BMS; la consistencia interna y estructura factorial fue evaluada con 270 adolescentes (Medad=12.84), de los cuales 171 participaron en el retest. El segundo estudio se dirigió a probar, en una muestra independiente (n=200; Medad=13.46), la adecuación de la estructura factorial derivada respecto a la original. La versión en español de la BMS mostró tener adecuada consistencia interna (α=.88) y confiabilidad test-retest (r=.80). El análisis factorial exploratorio derivó inicialmente cuatro factores, observándose traslapamiento conceptual entre dos de ellos; por tanto, se optó por replicar el análisis forzando la extracción a tres factores. Éstos explicaron 44.1% de la varianza, agrupando 20 de los 24 reactivos originales. Los factores perder peso y aumentar tono o masa muscular mostraron adecuada confiabilidad (α>.86; r>.80), resultando sustancialmente menor la del factor ganar peso (.63 y .74, respectivamente). Los análisis factoriales confirmatorios fundamentaron la adecuación de ambas estructuras; sin embargo, el modelo correspondiente a la aquí propuesta mostró un mejor ajuste. En general, la versión en español de la BMS mostró poseer adecuadas propiedades psicométricas en varones adolescentes. Sin embargo, esto deberá corroborarse no sólo en otras edades, sino también en mujeres.

Several countries have noticed not only the adoption of body change strategies by males, but these may respond to different purposes: weight loss, weight gain and increased muscle tone or muscle mass. Nevertheless, instruments that allow the assessment of these aspects in a differentially way are scanty. Therefore, the aim of the present study was to obtain the Spanish version of the Body Modification Scale (BMS), as well as to examine its psychometric properties in adolescent men. The first study included the translation, adjustment and piloting of the BMS; internal consistency and factor structure were evaluated with 270 adolescents (Mage=12.84); 171 of them participated in retest. The second study was conducted to prove, in an independent sample (n=200; Mage=13.46), the adequacy of the factor structure derived from the original. The Spanish version of the BMS indicated to have adequate internal consistency (α=.88) and test-retest reliability (r=.80). The exploratory factor analysis derived initially four factors, showing conceptual overlap between two of them; therefore, it was opted to replicate the analysis performing an extraction to three factors. These explained 44.1% of the variance, grouping 20 of the 24 original items. The loss weight and increased muscle tone or muscle mass factors showed adequate reliability (α>.86; r>.80), resulting substantially lower the weight gain factor (.63 and .74, respectively). The confirmatory factor analysis supported the adequacy of both structures; however, the model here proposed showed a better fit. In general, the Spanish version of the BMS showed adequate psychometric properties in adolescent men. Nevertheless, this should be corroborated not only in other ages, but also in women.

Edad, Consciencia e Interiorización del Ideal Corporal como Predictores de Insatisfacción y Conductas Alimentarias Anómalas / Idade, Consciência e Interiorização do Ideal Corporal como Preditores de Insatisfação e Condutas Alimentares Anômalas / Age, Awareness and Internalization of Body Ideal as Predictors of Body Dissatisfaction and Disordered Eating Behaviors

Este estudio indaga si la edad, la consciencia y la interiorización del ideal corporal predicen la insatisfacción corporal y las conductas alimentarias anómalas, en una muestra de 144 mujeres y 138 hombres, en dos grupos de diferentes edades (9-12 y 13-15 años). Para tal fin se aplicaron tres cuestionarios: Cuestionario de Imagen Corporal, Test Infantil de Actitudes Alimentarias y Cuestionario de Actitudes Socioculturales hacia la Apariencia. Mediante un modelo hipotético, que se probó a través de un path análisis, se concluye que la edad es un predictor directo de la insatisfacción corporal y las conductas alimentarias anómalas en los hombres, mientras que la interiorización del ideal corporal es el principal predictor de la insatisfacción corporal en ambos sexos.

The aim of this study was to examine whether age, awareness, and internalization of body ideal predict body dissatisfaction and abnormal eating behaviors in men and women. An intentional, non-probabilistic sample of 144 women and 138 men was divided into two different age groups (9-12 and 13-15) that had to respond to the following questionnaires: Body Shape Questionnaire, Children's Eating Attitudes Test and Sociocultural Attitudes Towards Appearance Questionnaire - Revised. A hypothetical model tested through path analysis made it possible to conclude that age is a direct predictor of body dissatisfaction and abnormal eating behaviors in men, while the internalization of the body ideal is the main predictor of body dissatisfaction in both genders.

Este estudo indaga se a idade, a consciência e a interiorização do ideal corporal predizem a insatisfação corporal e as condutas alimentares anômalas, em uma amostra de 144 mulheres e 138 homens, em dois grupos de diferentes idades (9-12 e 13-15 anos). Para tal fim, aplicaram-se três questionários: Questionário de Imagem Corporal, Teste Infantil de Atitudes Alimentares e Questionário de Atitudes Socioculturais direcionadas à Aparência. Mediante um modelo hipotético, que se provou por meio de um path análise, conclui-se que a idade é um preditor direto da insatisfação corporal e as condutas alimentares anômalas nos homens, enquanto a interiorização do ideal corporal é o principal preditor da insatisfação corporal em ambos os sexos.

Role of Peer Influence and Thin-ideal Internalization on Body Dissatisfaction and Disordered Eating in Mexican Girls / Rol de la Influencia de Pares y de la Interiorización del Ideal de Delgadez sobre la Insatisfacción Corporal y Alimentación No Saludable en Jóvenes Mexicanas / O Papel da Influência de Pares e da Interiorização do Ideal de Delgadeza na Insatisfação Corporal e na Alimentação Não Saudável em Jovens Mexicanas

The aim of this study was to examine the role of peer influence and thin-ideal internalization on body dissatisfaction and disordered eating. The Eating Attitudes Test, the Body Shape Questionnaire and the Questionnaire of Sociocultural Influences on the Aesthetic Body Shape Model were administered to 130 female students, with a mean age of 19.44. The results showed that thin-ideal internalization mediated the relationship between peer influence and body dissatisfaction (β=0.14, p>.05), and the relationship between peer influence and disordered eating (β=0.09, p>.05). This study supports the hypothesis that the thin-ideal internalization is an important mediator on body dissatisfaction and disordered eating in Mexican girls.

Con el objetivo de examinar el rol de la influencia de pares y de la interiorización del ideal de delgadez sobre la insatisfacción corporal y la alimentación no saludable en una muestra comunitaria, se aplicó el Test de Actitudes Alimentarias, el Cuestionario de Imagen Corporal y el Cuestionario de Influencias del Modelo Estético Corporal a 130 mujeres estudiantes, cuya media de edad fue de 19.44 años. El análisis de datos reveló que la interiorización del ideal de delgadez medió la relación entre la influencia de pares y la insatisfacción corporal (β=0.14, p>.05), así como la relación entre la influencia de pares y la alimentación no saludable (β=0.09, p>.05). Este estudio apoya la hipótesis de que la interiorización del ideal de delgadez es un importante mediador sobre la insatisfacción corporal y la alimentación no saludable en jóvenes mexicanas.

Com o objetivo de examinar o papel da influência de pares e da interiorização do ideal de delgadeza na insatisfação corporal e na alimentação não saudável em uma amostra comunitária, aplicou-se o Teste de Atitudes Alimentares, o Questionário de Imagem Corporal e o Questionário de Influências do Modelo Estético Corporal a 130 mulheres estudantes, cuja média de idade foi de 19.44 anos. A análise de dados revelou que a interiorização do ideal de delgadeza mediou a relação entre a influência de pares e a insatisfação corporal (β=0.14, p>.05), assim como a relação entre a influência de pares e a alimentação não saudável (β=0.09, p>.05). Este estudo apoia a hipótese de que a interiorização do ideal de delgadeza é um importante mediador na insatisfação corporal e na alimentação não saudável em jovens mexicanas.

Body dissatisfaction in children and preadolescents: A systematic review / Insatisfacción corporal en niños y preadolescentes: Una revisión sistemática

Body dissatisfaction has been extensively studied in populations of all ages, however, no revisions to provide information about what has been found, inconsistencies, limitations and possible direction future research should take in children and preadolescents. Therefore, the aim of this paper was to conduct a systematic review of body dissatisfaction in children and preadolescents. To fulfill this purpose, we conducted a search in the databases of MEDLINE, Science Direct and Scopus, with the following keywords: body dissatisfaction, body perception, self-evaluation, body concept, preadolescents, and preteen children in different combinations, according to the inclusion and exclusion criteria were analyzed 63 articles. In the studies reviewed there is no consensus about the approach of body dissatisfaction, are permeated by methodological problems, mainly in the way that is evaluated in childhood because of the difficulty of children to understand the assessment tools, giving result in inconsistent results, further research is less in preadolescence where accurate estimation of body dissatisfaction. That is why it is considered to extend the research in children, with the inclusion of development that would create assessment methods according to age.

La insatisfacción corporal ha sido ampliamente estudiada en poblaciones de todas las edades, sin embargo, no hay revisiones que proporcionen información acerca de lo que se ha encontrado, las inconsistencias, limitaciones y la posible dirección que deben tomar futuras investigaciones en niños y preadolescentes. Por lo cual, el objetivo de este artículo fue realizar una revisión sistemática de la insatisfacción corporal en niños y preadolescentes. Para cumplir este propósito, se realizó una búsqueda de artículos en las bases de datos de MEDLINE, Science Direct y Scopus, con las siguientes palabras clave: body dissatisfaction, body perception, self-evaluation, body concept, preadolescents, preteen y children en diferentes combinaciones, de acuerdo con los criterios de inclusión y exclusión se analizaron 63 artículos. En los estudios analizados no hay un consenso acerca del abordaje de la insatisfacción corporal, se encuentran permeados por problemas metodológicos, fundamentalmente en la forma en la que se evalúa en la infancia debido a la dificultad de los niños para comprender las herramientas de evaluación, obteniendo resultados inconsistentes, adicionalmente hay menos investigación que en la preadolescencia donde es precisa la estimación de la insatisfacción corporal. Es por ello que se considera extender la investigación en población infantil, con la inclusión del desarrollo que permitiría crear métodos de evaluación de acuerdo a la edad.

Relationship between self-esteem and symptoms of muscle dysmorphia in male bodybuilders / Relación entre autoestima y síntomas de dismorfia muscular en varones fisicoconstructivistas

The purposes of this study were to identify the symptoms of muscle dysmorphia in four groups of men; compare the self-esteem among groups with high, moderate and low drive for muscularity; and evaluate the relationship between these variables. The sample included 295 men aged 15 to 63 years-old (57 competitors bodybuilders, 40 not competitors, 47 gym users, and 151 sedentary) who answered the Drive for Muscularity Scale and the Rosenberg Self-Esteem Scale. Results indicated that 43.9% of competitors bodybuilders, 27.5% non-competitors bodybuilders, 10.6% of gym users, and 1.3% of sedentary had symptoms of muscle dysmorphia. Covariance analysis, controlling for age, indicated that participants with lower self-esteem were those who scored higher on drive for muscularity, compared with those with moderate and low self-esteem. Finally, there was a significant and negative correlation between self-esteem and drive for muscularity, however, these results do not reveal whether self-esteem is a precursor or a consequence of drive for muscularity, so that future studies could longitudinally investigate the role of self-esteem in the development of drive for muscularity.

Los propósitos de este estudio fueron: identificar los síntomas de dismorfia muscular en cuatro grupos de varones, comparar la autoestima entre los grupos con alta, moderada y baja motivación por la musculatura, y evaluar la relación entre dichas variables. La muestra incluyó 295 varones de 15 a 63 años de edad (57 fisico-constructivistas competidores, 40 no competidores, 47 usuarios de gimnasio y 151 sedentarios) quienes contestaron la Escala de Motivación por la Musculatura y la Escala de Autoestima de Rosenberg. Los resultados indicaron que 43.9% de fisicoconstructivistas competidores, 27.5% de fisicoconstructivistas no competidores, 10.6% de usuarios de gimnasio y 1.3% de sedentarios presentaron síntomas de dismorfia muscular. El análisis de covarianza, controlando la edad, indicó que los participantes con menor autoestima fueron los que puntuaron más alto en motivación por la musculatura, en comparación con los de moderada y baja motivación. Finalmente, se observó una correlación significativa y negativa entre la autoestima y la motivación por la musculatura, sin embargo, estos resultados no revelan si la autoestima es un precursor de la motivación por la musculatura o una consecuencia, por lo que futuros estudios podrían investigar longitudinalmente el rol de la autoestima en el desarrollo de la motivación por la musculatura.