Estudo de validação e fidedignidade de escalas de silhuetas brasileiras em adolescentes

[Body image dissatisfaction and low adherence to the Western dietary standard among schoolchildren: a cross-sectional study]

This study aimed to identify dietary patterns and to evaluate the association between body image perception and these patterns among schoolchildren. A cross-sectional study was conducted on 385 schoolchildren (both sexes, 10-17 years old) from four public schools in Salvador, Brazil. Two non-consecutive 24-hour dietary recalls were applied, and the dietary pattern was determined by Exploratory Factor Analysis after adjustment of dietary data using the Multiple Source Method. To evaluate body image perception, the Brazilian body shape silhouette was used. The associations between body image perception and dietary patterns using the polytomous logistic regression model adjusted for covariables was assessed. Three dietary patterns were obtained: "Western standard," unhealthy, "healthy pattern" and "typical dishes/ junk food." After adjustment, adolescents who wished for a slimmer silhouette (2.48 [95%CI: 1.04-6.11], 3.49 [95%CI: 1.35-9.05] and 2.87 [95%CI: 1.13-7.26]) were more likely to adhere to the quintiles with the lowest consumption of the Western standard, compared to those satisfied with their body image. No associations were identified in the other two dietary patterns. Adolescents dissatisfied with their bodies tend to adhere less to unhealthy dietary patterns.

Physical Activity and Body Image Perception in Adolescents: A Systematic Review

Adolescence represents a vulnerable phase of life for psychological health. The practice of physical activity (PA) appears to have a positive influence on adolescents, increasing self-esteem and producing a more positive body image. A systematic review of published articles over the past 10 years until June 2022 was conducted according to the PRISMA statement employing the electronic databases MEDLINE and Web of Science (639 records) to summarize the literature on the relationship between body image dissatisfaction (BID) and assessed by figural scales and practice of structured and unstructured PA in adolescents (10-18 years), taking into account BMI and/or weight status. All articles were independently reviewed using inclusion/exclusion criteria, retrieved data, and assessed quality with the adapted Newcastle-Ottawa Scale for observational studies. The main finding of interest that emerged from most of the 28 included studies is the negative association between BID and PA during adolescence: as PA increases, BID decreases. However, this updated systematic review also identified some flaws in the existing literature, highlighting the need for high-quality adolescent research using validated figural scales and objective PA assessments. In conclusion, the reviewed studies showed that PA involvement can be efficacious in protecting from body image perception concerns and enhancing body satisfaction. Future interventions should promote structured and unstructured PA during adolescence to improve self-esteem and body image.

[Excessive alcohol intake and dissatisfaction with body image among adolescents and young adults in a municipality in Bahia State, Brazil]

The study aimed to analyze the association between excessive alcohol intake and dissatisfaction with one's body image in a population of adolescents and young adults. This was a cross-sectional study with a household survey design in a sample of 1,582 individuals 15 to 24 years of age living in Camaçari, Bahia State, Brazil. Excessive alcohol intake was identified by the Alcohol Use Disorder Identification Test (AUDIT), and dissatisfaction with body image was measure with the Silhouette Figure Scale. Confounding variables were: sex, age, race, schooling, work, religion, family composition, number of close friends, marital status, and children. The association between excessive alcohol intake and body dissatisfaction was estimated by logistic regression. Prevalence of excessive alcohol intake was 21.9% (higher in males), and prevalence of body image dissatisfaction was 79.5% (higher in females). No statistically significant association was found between excessive alcohol intake and dissatisfaction with body image. After adjustment of the final model, the variables that remained associated with excessive alcohol intake were religion (OR = 2.02), schooling (OR = 1.63), family composition (OR = 1.61), age (OR = 0.55), and work (OR = 0.61). Although the analyses did not show an association between excessive alcohol intake and dissatisfaction with body image, the study's results call attention to the high prevalence rates for the two phenomena. This shows the need to develop interventions focused on practices of care for this specific population.

Body dissatisfaction and its relationship with overweight, sedentary behavior and physical activity in survivors of breast cancer

OBJECTIVES

This study aimed to verify the prevalence of body satisfaction in breast cancer survivors and the association of this variable with overweight, sedentary behavior and physical activity in this population.

STUDY DESIGN

This is a cross-sectional study realized in Presidente Prudente-Brazil. Breast cancer survivors participated in this study. Questionnaires were used to obtain data on socioeconomic status, body dissatisfaction, sedentary behavior and level of physical activity. The association between body dissatisfaction and the independent variables was verified through binary logistic regression in the unadjusted model and model adjusted by socioeconomic level.

RESULTS

A total of 102 breast cancer survivors participated in this study with a mean age of 58.2 (±10.3) years. The prevalence of body dissatisfaction was 75.7%. Body dissatisfaction was higher in women with higher BMI (pvalue = 0.003) and in woman with high sedentary behavior (p-value = 0.049). Women with overweight had 7.87 times more chance of presenting body dissatisfaction. Women who reported hormone therapy were approximately 3 times more likely to be dissatisfacted with their body.

CONCLUSION

Body dissatisfaction was associated with lower age, high sedentary behavior and overweight in breast cancer survivors in the unadjusted analysis. When adjusted for socioeconomic status, only the variables of overweight and hormone therapy were associated with body dissatisfaction.

Uso de redes sociais, influência da mídia e insatisfação com a imagem corporal de adolescentes brasileiras

RESUMO Objetivo Avaliar relações entre a influência da mídia e o uso de redes sociais na imagem corporal (IC) de adolescentes do sexo feminino. Métodos Estudo transversal realizado com meninas adolescentes estudantes de escola pública e de uma organização não governamental da capital e do interior de São Paulo. Além de variáveis sociodemográficas e antropométricas, a avaliação da (IC) foi realizada pela Escala de Silhuetas Brasileiras. A influência da mídia foi avaliada pela subescala 1 de internalização geral da Escala de Atitudes Socioculturais em Relação à Aparência (SATAQ-3). Por fim, foram aplicadas perguntas sobre a frequência de acesso às mídias sociais e possível influência delas na IC. Resultados Participaram 212 meninas (14,8; DP 1,69 anos), sendo a maioria eutrófica (65,1%), pertencentes às classes sociais D e E, com escolaridade materna correspondente ao ensino médio completo; 85,8% estavam insatisfeitas com a IC; a maioria desejava uma silhueta menor. As meninas que escolheram figuras menores como desejadas apresentaram valores superiores na SATAQ-3 (p < 0,001). O acesso diário maior de 10 vezes ao dia ao Facebook e Instagram aumentou a chance de insatisfação em 6,57 e 4,47 vezes, respectivamente. Conclusão As mídias, incluindo as redes sociais, estão associadas à insatisfação da IC de meninas adolescentes.

Overweight and Body Image Perception in Adolescents with Triage of Eating Disorders

Purpose

To verify the influence of overweight and alteration in the perception of the corporal image during the triage of eating disorders.

Method

A food disorder triage was performed in adolescents with 10 to 19 years of age using the Eating Attitudes Test (EAT-26), Children's Eating Attitudes Test (ChEAT), and Bulimic Investigatory Test Edinburgh (BITE), as well as a nutritional status evaluation. The perception of body image was evaluated in a subsample of adolescents with 10 to 14 years of age, using the Brazilian Silhouette Scale. The project was approved by the Human Research Ethics Committee of the Federal University of Viçosa, Minas Gerais, Brazil.

Results

The prevalence of eating disorder triage was 11.4% (n = 242) for the 2,123 adolescents evaluated. Overweight was present in 21.1% (n = 447) of the students, being more prevalent in the early adolescence phase, which presented levels of distortion of 56.9% (n = 740) and dissatisfaction of 79.3% (n = 1031). Body dissatisfaction was considered as a risk factor, increasing by more than 13 times the chance of TA screening.

Conclusion

Overweight was correlated with the ED triage and body dissatisfaction was considered as a risk factor, increasing the chances of these disorders by more than 13 times.

Impact of an Interdisciplinary Food, Nutrition and Health Education Program for adolescent Brazilian volleyball players

ABSTRACT Objective: To evaluate the impact of an Interdisciplinary Food, Nutrition and Health Education Program on nutrition knowledge, intention to change eating behavior, and body dissatisfaction of adolescent volleyball players. Methods: The sample consisted of 10 female volleyball players from the juvenile category of the city of Santos, São Paulo, Brazil, who participated in a program with eight monthly meetings (one discussion group followed by six educational activities and one final discussion group for evaluation). Results: Nutrition knowledge, body perception, intention to change eating behavior, eating attitudes and practices were investigated using questionnaires and discussion groups before and after the athletes' participation in ludic activities designed to address nutrition strategies for athletic performance and healthy eating, and how to deal with pressure for results and self-image. Nutrition knowledge improved from 57.0%±9.9 to 63.0%±11.8 (p=0.03) of correct answers. The mean body distortion score did not change (70.0±14.9 versus 76.5±22.4, p=0.235). Six athletes advanced in their intention to change eating behavior. Positive food practices were reported during the program and the identified discourses indicated the intention of changing the daily eating habits in the future. Conclusion: The program had a positive impact on nutrition knowledge and intention of changing eating behavior; however, for other issues, especially involving emotional aspects, further interventions should be planned.

Body image in Brazil: recent advances in the state of knowledge and methodological issues

OBJECTIVE

To analyze Brazilian literature on body image and the theoretical and methodological advances that have been made.

METHODS

A detailed review was undertaken of the Brazilian literature on body image, selecting published articles, dissertations and theses from the SciELO, SCOPUS, LILACS and PubMed databases and the CAPES thesis database. Google Scholar was also used. There was no start date for the search, which used the following search terms: “body image” AND “Brazil” AND “scale(s)”; “body image” AND “Brazil” AND “questionnaire(s)”; “body image” AND “Brazil” AND “instrument(s)”; “body image” limited to Brazil and “body image”.

RESULTS

The majority of measures available were intended to be used in college students, with half of them evaluating satisfaction/dissatisfaction with the body. Females and adolescents of both sexes were the most studied population. There has been a significant increase in the number of available instruments. Nevertheless, numerous published studies have used non-validated instruments, with much confusion in the use of the appropriate terms (e.g., perception, dissatisfaction, distortion).

CONCLUSIONS

Much more is needed to understand body image within the Brazilian population, especially in terms of evaluating different age groups and diversifying the components/dimensions assessed. However, interest in this theme is increasing, and important steps have been taken in a short space of time.

Agreement and association between different indicators of body image and body mass index in adolescents

The aim of the study was to examine the correlation among different indicators of body image; between each one of these and nutritional status; and the association of these indicators with the Body Mass Index (BMI) of adolescents. A random sample of 152 students from public and private schools in the city of Rio de Janeiro, Brazil, was studied. On four occasions, two silhouette scales and two questions regarding the opinion of the student about his/her body and weight were applied and weight and height were measured. The BMI was examined both as a continuous and as a categorical variable. The agreement between the variables was analyzed using the quadratic weighted Kappa statistics. The association between body image variables and BMI was examined by the comparison among median, mean, standard deviation and 95% confidence interval of BMI for each category of the body image variables. In general, the correlation among the body image variables ranged from reasonable to good; between these and the variable nutritional status, correlation ranged from regular to reasonable. Best results were observed among boys and students from private schools. All body image variables showed good discriminatory power for BMI, when it was analyzed as a continuous variable, even when controlling for potential confounders. The question about body seems to be better than that about weight to compose the questionnaire of a surveillance system for risk and protective factors for adolescent health.