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Factors associated with perception of the current silhouette and body image dissatisfaction in adults with obesity

Fatores associados à percepção da silhueta atual e à insatisfação da imagem corporal em adultos com obesidade

ABSTRACT

Objective

To verify the factors associated with the perception of current silhouette and body image dissatisfaction in adults with obesity.

Methods

Cross-sectional study derived from the baseline of a randomized clinical trial. The perception of current silhouette and dissatisfaction with body image, defined by the difference between the perception of current and ideal silhouette, were obtained from a scale that ranged from one (smallest silhouette) to nine (largest silhouette). The independent variables investigated as associated factors (crude and adjusted linear regression) were: sex, age, skin color, body mass index (kg/m2), percentage of body fat, level of physical activity, and food intake.

Results

Sixty-nine obese individuals (body mass index ≥30kg/m2) were studied, 42 of whom were female and with the following mean values: 34.7 (±7.2) years; 33.5 (±2.8) kg/m2, and current silhouette of 6.6 (±0.9). All were dissatisfied with their excess body weight. The categories associated with a perception that matched the current silhouettes were male sex, white skin color, and higher body mass index values when compared to female sex, non-white, and lower body mass index values, respectively. Regarding body image dissatisfaction, white people had lower scores than those with other skin colors.

Conclusion

Being male, having white skin color, and having a higher body mass index were risk factors for the perception of larger body silhouettes, while only non-white skin color was associated with dissatisfaction with body image.

Keywords
Body image; Body dissatisfaction; Exercise; Obesity

RESUMO

Objetivo

Verificar os fatores associados à percepção da silhueta atual e à insatisfação com a imagem corporal em adultos com obesidade.

Métodos

Estudo transversal derivado da linha de base de um ensaio clínico randomizado. A percepção de silhueta atual e a insatisfação com a imagem corporal, definida pela diferença entre a percepção da silhueta atual e da ideal, foram obtidas a partir de uma escala variando de um (menor silhueta) a nove pontos (maior silhueta). As variáveis independentes investigadas como fatores associados (regressão linear bruta e ajustada) foram: sexo, idade, cor da pele, índice de massa corporal (kg/m2), percentual de gordura corporal, nível de atividade física e ingestão alimentar.

Resultados

Foram investigados 69 obesos (índice de massa corporal ≥30kg/m2), sendo 42 do sexo feminino e com os seguintes valores médios: 34,7 (±7,2) anos; 33,5 (±2,8) kg/m2 e silhueta atual de 6,6 (±0,9). Todos estavam insatisfeitos pelo excesso de peso corporal. As categorias que se associaram à percepção da silhueta atual foram o sexo masculino, a cor de pele branca e maiores valores de índice de massa corporal quando comparados os dados referentes ao sexo feminino, a pessoas de cor da pele não branca e a menores valores de índice de massa corporal, respectivamente. Quanto à insatisfação com a imagem corporal, pessoas consideradas brancas tiveram escores mais baixos que aquelas com outras cores de pele.

Conclusão

Ser do sexo masculino, ter cor da pele branca e ter maior índice de massa corporal foram fatores de risco para a percepção de silhuetas corporais maiores, enquanto apenas a cor da pele não branca esteve associada à insatisfação com a imagem corporal.

Palavras-chave
Imagem Corporal; Insatisfação Corporal; Exercício Físico; Obesidade

INTRODUCTION

Obesity is considered an epidemic disease of great magnitude in the global scenario and has become a public health problem. In 2016, it already affected 13% of the world’s adult population with strong repercussions in the form of psychological consequences and a decline in quality of life [11 World Health Organization. Obesity and overweight. Genève: Organization; 2021 [cited 2021 Nov 9]. Avaiable from: https://www.who.int/westernpacific/health-topics/obesity
https://www.who.int/westernpacific/healt...
,22 Kolotkin, RL, John RA. A systematic review of reviews: exploring the relationship between obesity, weight loss and health-related quality of life. Clinical Obesity. 2017;7(5):273-89. https://doi.org/10.1111/cob.12203
https://doi.org/10.1111/cob.12203...
]. Its growth in recent years has spread beyond high-income countries to low- and middle-income countries as well. Due to multifactorial causes such as environmental, behavioral, genetic, social, and cultural factors, obesity is directly related to dissatisfaction with Body Image (BI) [33 Chu, DT, Nguyet, NTM, Nga, VT, Lien NVT, Vo DD, Lien N, et al. An update on obesity: Mental consequences and psychological interventions. Diabetes Met Synd Clin Res Rev. 2019;13(1):155-60. https://doi.org/10.1016/j.dsx.2018.07.015
https://doi.org/10.1016/j.dsx.2018.07.01...
].

This, in turn, corresponds to the self-perception of physical appearance and thoughts, beliefs, and attitudes towards the body [44 Lisowski JF, Leite HM, Bairros F, Henn RL, Costa JSD, Olinto MTA. Prevalência de sobrepeso e obesidade e fatores associados em mulheres de São Leopoldo, Rio Grande do Sul: um estudo de base populacional. Cad Saude Coletiva. 2019;27:380-9. https://doi.org/10.1590/1414-462x201900040226
https://doi.org/10.1590/1414-462x2019000...
]. For Cash et al. [55 Cash TF. Body image: past, present, and future. Body Image. 2004;1:1-5. https://doi.org/10.1016/s1740-1445(03)00011-1
https://doi.org/10.1016/s1740-1445(03)00...
], BI is part of a multidimensional construction, referring to a person’s perceptions and attitudes, including feelings, thoughts, and behaviors regarding their own body and appearance. It is a construct that goes beyond aesthetics, in which the way individuals perceive themselves interferes with their relationship with themselves and with the people around them. When the self-perception of physical appearance is far from what the individual considers ideal, dissatisfaction with BI is declared. In the obesogenic setting, such dissatisfaction is related to overweight, in which the subjects crave smaller silhouettes. This phenomenon favors physical and mental illness, which can lead to depression, anxiety, and eating disorders [66 Gonçalves FTD. Imagem corporal feminina e os efeitos sobre a saúde mental: uma revisão bibliográfica sobre a intersecção entre gênero, raça e classe. REAS. 2020;39:e2194. https://doi.org/10.25248/reas.e2194.2020
https://doi.org/10.25248/reas.e2194.2020...
,77 Brechan I, Kvalem IL. Relationship between body dissatisfaction and disordered eating: mediating role of self-esteem and depression. Eat Behav. 2015;17:49-58. https://doi.org/10.1016/j.eatbeh.2014.12.008
https://doi.org/10.1016/j.eatbeh.2014.12...
].

The association between the nutritional status of obesity and Body Dissatisfaction (BD) is already widespread in the literature, with individuals with obesity being more dissatisfied compared to those considered eutrophic [88 Weinberger N-A, Kersting A, Riedel-Heller SG, Luck-Sikorski C. Body Dissatisfaction in individuals with obesity compared to normal-weight individuals: a systematic review and meta-analysis. Obes Facts. 2016;9:424-41. https://doi.org/10.1159/000454837
https://doi.org/10.1159/000454837...
]. In addition, anthropometric indicators such as Body Mass Index (BMI) and body fat percentage (BF%), commonly used to detect this disease, are positively correlated with this outcome [99 Ålgars M, Santtila P, Varjonen M, Witting K, Johansson A, Jern P, et al. The adult body: how age, gender, and body mass index are related to body image. J Aging Health. 2009;21:1112-32. https://doi.org/10.1177/0898264309348023
https://doi.org/10.1177/0898264309348023...
,1010 Zaccagni L, Rinaldo N, Bramanti B, Mongillo J, Gualdi-Russo E. Body image perception and body composition: assessment of perception inconsistency by a new index. J Transl Med. 2020;18:20. https://doi.org/10.1186/s12967-019-02201-1
https://doi.org/10.1186/s12967-019-02201...
]. Other factors also influence the perception of BI, such as sex. Men tend to be dissatisfied due to low body weight, while women tend to be dissatisfied due to excess weight. Even so, the female public is dissatisfied in higher degrees both in eutrophic individuals and in those with obesity [88 Weinberger N-A, Kersting A, Riedel-Heller SG, Luck-Sikorski C. Body Dissatisfaction in individuals with obesity compared to normal-weight individuals: a systematic review and meta-analysis. Obes Facts. 2016;9:424-41. https://doi.org/10.1159/000454837
https://doi.org/10.1159/000454837...
]. Age mediates this relationship, as young people and the elderly tend to present dissatisfaction more frequently [1111 Lipowska M, Lipowski M. Narcissism as a moderator of satisfaction with body image in young women with extreme underweight and obesity. Plos One. 2015;10:e0126724. https://doi.org/10.1371/journal.pone.0126724
https://doi.org/10.1371/journal.pone.012...
]. On the other hand, aspects related to lifestyle and health have been little explored. More physically active individuals are less likely to be obese and have a positive BI perception; however, there is a lack of evidence regarding the relationship between sedentary behavior and eating habits and the construct of BI [44 Lisowski JF, Leite HM, Bairros F, Henn RL, Costa JSD, Olinto MTA. Prevalência de sobrepeso e obesidade e fatores associados em mulheres de São Leopoldo, Rio Grande do Sul: um estudo de base populacional. Cad Saude Coletiva. 2019;27:380-9. https://doi.org/10.1590/1414-462x201900040226
https://doi.org/10.1590/1414-462x2019000...
,1212 Sabiston C, Pila E, Vani M, Thøgersen-Ntoumani C. Body image, physical activity, and sport: a scoping review. Psychol Sport Exerc. 2019;42:48-57. https://doi.org/10.1016/j.psychsport.2018.12.010
https://doi.org/10.1016/j.psychsport.201...
].

Dissatisfaction with one’s BI can form barriers to the regulation of emotions that, for biological and psychological reasons, lead to problems especially related to inadequate eating habits and physical inactivity, which culminates in the vicious cycle of obesity. Simonsen et al. [1313 Simonsen MK, Hundrup YA, Obel EB, Grønbæk M, Heitmann BL. Intentional weight loss and mortality among initially healthy men and women. Nutr Rev. 2008;66:375-86. https://doi.org/10.1111/j.1753-4887.2008.00047.x
https://doi.org/10.1111/j.1753-4887.2008...
] indicated that BI has a much greater impact on health than body size itself. This means that equally overweight individuals can have very different physical and psychological health outcomes depending on how they feel about their bodies. Therefore, understanding BI and its associated factors is important to specify the social and psychological experience of those with obesity, as well as the general health consequences related to the etiology and treatment of obesity. Furthermore, clinically, people with obesity constitute a very heterogeneous group and, although they report current BI to a lesser degree than eutrophic subjects, it seems to be more useful to consider how BI differs within the target population itself. In this sense, the present study aimed to verify the sociodemographic, lifestyle, and health factors associated with the perception of the current silhouette and dissatisfaction with BI in adults with obesity based on baseline data from a randomized clinical trial.

METHODS

Cross-sectional study derived from baseline data of a randomized clinical trial. Inclusion criteria were: individuals with a BMI between 30 and 39.9 kg/m2 and aged between 20 and 50 years; who presented a medical certificate with authorization to practice physical exercise and an electrocardiogram performed in the past year; who were not engaged in physical exercise programs in the last three months; who did not have a diagnosis of any chronic diseases other than obesity; who did not have musculoskeletal diseases limiting the practice of physical exercise; who did not use medication to control and/or treat obesity; and who had not undergone surgical procedures aimed at reducing body weight. Participants who did not meet all above-mentioned criteria were excluded.

Perception of the current silhouette and dissatisfaction with BI were investigated using the silhouette scale by Stunkard [1414 Stunkard AJ. The Salmon lecture. Some perspectives on human obesity: its causes. Bull NY Acad Med. 1988;64:902-23.]. It consists of nine silhouette images for each sex, being one the (smallest silhouette) and nine (the largest). When looking at the image, participants mark the number that represented their current silhouette and then mark the number that represented their ideal silhouette. The BD was calculated by subtracting the current silhouette value from the ideal silhouette, the result varying from -8 to +8. Individuals with a variation equal to zero were satisfied with their BI; those with results less than zero were dissatisfied due to excess weight; and those greater than zero dissatisfied with thinness.

To obtain the sociodemographic variables, the Question Pro® software was used. Participants received a link to access and answer the questions, which addressed the following information: age (in full years), sex (female or male), skin color (white or other), and education (elementary school, secondary education, and higher education).

To assess body composition, BMI and percentage of body fat were used, obtained through tetrapolar electrical bioimpedance (InBody 770). Experienced evaluators performed the procedures and followed standardized guidelines [1515 Antonio J, Kenyon M, Ellerbroek A, Carson C, Burgess V, Tyler-Palmer D, et al. Comparison of Dual-Energy X-ray Absorptiometry (DXA) versus a Multi-Frequency Bioelectrical Impedance (InBody 770) device for body composition assessment after a 4-week hypoenergetic diet. J Funct Morphol Kinesiol. 2019;4:23. https://doi.org/10.3390/jfmk4020023
https://doi.org/10.3390/jfmk4020023...
]. The test was performed in the morning in a room with a temperature between 20º and 25ºC. Individuals received specific guidance, such as not drinking alcoholic and/or energy drinks and not practicing physical activity the day before. On the day of measurement, participants were instructed to abstain from food and liquids for four hours before the assessment. Women who were menstruating on the scheduled date were rescheduled for another date when they were not menstruating. During the evaluation, the participants remained in an orthostatic position holding the two levers, with their feet placed under a platform. For the examination, participants wore bathing suits and were barefoot and did not wear earrings and/or rings or other metal. This multi-frequency bioelectrical impedance device is calibrated weekly according to the manufacturer’s guidelines by a team of laboratory technicians. In addition, it has validation to assess the body composition of young adults and sensitivity to detect changes after interventions [1616 Brewer GJ, Blue MN, Hirsch KR, Saylor He, Gould LM, Abbie AGN, et al. Validation of InBody 770 bioelectrical impedance analysis compared to a four-compartment model criterion in young adults. Clin Physiol Funct Imaging. 2021;41(4):317-25. https://doi.org/10.1111/cpf.12700
https://doi.org/10.1111/cpf.12700...
,1717 Kyle UG, Bosaeus I, De Lorenzo AD, Deurenberg P, Elia M, Gómez JM, et al. Bioelectrical impedance analysis - part II: utilization in clinical practice. Clin Nutr. 2004;23:143-53. https://doi.org/10.1016/j.clnu.2004.09.012
https://doi.org/10.1016/j.clnu.2004.09.0...
].

The level of physical activity and sedentary behavior were measured using accelerometry. For seven consecutive days, participants wore Actigraph® accelerometers, model Gt3x, fixed to their waists with an elastic band. For the data to be considered valid, 10 hours of recording per day were required for at least three days a week and one day on the weekend. Thereafter, all data were weighted for 16 hours a day for seven days. Based on the cutoff points of Freedson et al. [1818 Freedson PS, Melanson E, Sirard J. Calibration of the computer science and applications, inc. accelerometer. Med Sci Sports Exerc. 1998;30:777-81. https://doi.org/10.1097/00005768-199805000-00021
https://doi.org/10.1097/00005768-1998050...
], activities with less than 100 counts are considered as sedentary behavior, from 1,952 to 5,724 counts as moderate physical activity, and above 5,725 as vigorous physical activity.

Daily energy consumption (kcal/day) was measured using a 24-hour food record applied by nutrition professionals, in which participants reported verbally all food and beverages consumed, as well as the amount of each one. This process was repeated in three days, the first one being in person and the following ones through telephone contact. The recall was for the day before and corresponds to two weekdays and one weekend. To analyze energy consumption, data were entered according to the “Manual for the Assessment of Food Consumption in Population Studies” [1919 Fisberg RM, Villar BS. Manual de receitas e medidas caseiras para cálculo de inquéritos alimentares: manual elaborado para auxiliar o processamento de dados de inquéritos alimentares. São Paulo: Signus; 2002.] in the Nutrition Data System for Research® software, grad pack 2017 (NCC Food and Nutrient Database, University of Minnesota, Minneapolis, MN, USA).

In the descriptive statistics, we used mean, standard deviation, median, minimum, and maximum values for continuous variables, including absolute and relative frequencies for categorical variables. To characterize the sample, the following sociodemographic variables were used: age, sex, skin color, and education. The analysis of normality of data distribution was performed using the Shapiro-Wilk test, considering statistical significance when p-value <0.05. Variables related to BI, BMI, body fat percentage, and energy consumption had normal distribution, while physical activity (light, moderate, and vigorous) and sedentary behavior did not.

To verify the association between the perception of the current silhouette and BD with sociodemographic, lifestyle and health variables, crude and adjusted linear regression was performed. In the adjustment, the first level was composed of the demographic variables; the second level, by education; and the third level, by lifestyle and health variables: BMI, percentage of body fat, minutes of physical activity, sedentary behavior, and daily energy consumption. For the insertion of the variables in the model, the backward selection technique was considered, with p≤0.20.

This study was submitted to the Ethics Committee for Research with Human Beings at the Federal University of Santa Catarina and was approved under technical report nº 2,448,674 (CAAE 79893517.0.0000.0121). The project was registered and approved by the Registro Brasileiro de Ensaios Clínicos (Brazilian Registry of Clinical Trials) under the number RBR-3c7rt3 and all participants signed the Informed Consent Form. Further methodological details can be consulted in the protocol study [2020 Streb AR, Silva RP, Leonel LDS, Tozetto WR, Gerage AM, Benedet J, et al. Comparison of linear periodized and non-periodized combined training in health markers and physical fitness of adults with obesity: Clinical trial protocol. Contemp Clin Trials Commun. 2019;15:e100358. https://doi:10.1016/j.conctc.2019.100358
https://doi.org/10.1016/j.conctc.2019.10...
].

RESULTS

Of the 500 volunteers who signed up to participate in the study, 69 met the eligibility criteria and were randomized. Of these, 39.1% were men with a mean age of 34.7 (±7.2) years. Most of the sample consisted of white subjects (79.7%) with complete higher education (76.8%). Table 1 presents the characterization of the sample based on sociodemographic factors.

Table 1
Characterization of study participants according to sociodemographic variable. Florianópolis (SC), Brazil, 2018. (n=69).

Regarding BMI, the sample had an average of 33.5 (±2.8) kg/m2 and body fat percentage of 40.2 (±7.1). As for moderate physical activity, the median was 49 min/day, ranging from 16 to 147. In contrast, sedentary behavior had a median of 400 min/day, ranging between 190 and 645. Other information on lifestyle, variables of life, and health can be seen in Table 2.

Table 2
Characterization of study participants according to lifestyle and health variables. Florianópolis (SC), Brazil. (n=69).

The variables related to the perception of BI had a mean of 6.6 (±0.9) for the current silhouette, 4.2 (±0.8) for the perception of the ideal silhouette, and -2.5 (±0.8) for the points of BD.

For perception of the current silhouette (Table 3), crude analyses identified an association with sex, skin color, and BMI, indicating that male individuals with white skin color and with higher BMI values perceived themselves as larger compared to their peers (female sex, non-whites, and lower BMI values, respectively). In turn, dissatisfaction with BI was only associated with skin color, in which non-white individuals were more dissatisfied (Table 3).

Table 3
analysis of the association between sociodemographic and lifestyle and health variables and the perception of current silhouette and body dissatisfaction in adults with obesity. Florianópolis (SC), Brazil, 2018. (n=69).

Table 4 presents the final models, already adjusted, of association between sociodemographic, lifestyle, and health variables with perception of the current silhouette (p=0.001; R2=0.34; VIF: 1.05) and BD (p=0.001; R2=0.14; VIF: 1.01). The perception of the current silhouette was associated with sex, skin color, and BMI. Thus, men perceived their bodies to be larger when compared to women, and white skin individuals perceived themselves to be larger than non-whites.

Table 4
Adjusted analysis of the association between sociodemographic and lifestyle and health variables and the perception of current silhouette and body dissatisfaction in adults with obesity. Florianópolis (SC), Brazil, 2018. (n=69).

For BMI, the increment of 0.13kg/m2 indicated an increase of one point in the perception of the current silhouette. When considering BD, it was observed an association only with skin color, in which white people had lower BD scores.

DISCUSSION

This study aimed to verify the factors associated with the perception of current silhouette and dissatisfaction with BI in obese adults. The BI dissatisfaction seems to affect significantly more people with obesity than those of normal weight, evidenced in measurements by different methods, such as questionnaires and scales [88 Weinberger N-A, Kersting A, Riedel-Heller SG, Luck-Sikorski C. Body Dissatisfaction in individuals with obesity compared to normal-weight individuals: a systematic review and meta-analysis. Obes Facts. 2016;9:424-41. https://doi.org/10.1159/000454837
https://doi.org/10.1159/000454837...
]. It was noticed that the perception of the current silhouette was associated with sex, skin color, and BMI. In other words, men perceived their bodies to be larger when compared to women, and white-skinned individuals perceived themselves to be larger than non-whites. As for BMI, those with a higher BMI perceive their current silhouettes to be concomitantly larger. When considering BD, an association with skin color was identified, suggesting that non-white people were more dissatisfied with their bodies.

Women perceived themselves as having smaller body silhouettes when compared to men; however, there was no difference in the degree of dissatisfaction with BI. A study by Rothwell et al. [2121 Rothwell CJ, Desmond D. The effect of viewing fitness imagery on body dissatisfaction: sex and physical activity differences. Psychol Health Med. 2018;23:980-6. https://doi.org/10.1080/13548506.2018.1442009
https://doi.org/10.1080/13548506.2018.14...
] points out that BD is influenced by cultural internalization of ideal body types, which have different standards for men and women. Individuals of both sexes seem to be negatively affected in relation to body satisfaction when frequently exposed to idealized standards. In the present study, both men and women were in the same obesity framework, which, in itself, seems to imply levels of BD.

Damasceno et al. [2222 Damasceno VO, Lima JRP, Vianna JM, Vianna VRÁ, Novaes JS. Tipo físico ideal e satisfação com a imagem corporal de praticantes de caminhada. Rev Bras Med Esporte. 2005;11:18-6. https://doi.org/10.1590/s1517-86922005000300006
https://doi.org/10.1590/s1517-8692200500...
] used the same instrument used in the present study to collect the ideal and current image perception. The results obtained indicated that men wanted a body with greater volume, with a greater amount of mass, and a lower level of body fat. In contrast, in the study by Sadibolova et al. [2323 Sadibolova R, Ferre ER, Linkenauger SA, Longo MR. Distortions of perceived volume and length of body parts. Cortex. 2019;111:74-86.], women perceived their body larger than it really was by idealizing a lean body, whereas in men the perception of being underweight or dissatisfaction was observed by idealizing a larger body. This fact may reflect the social phenomenon that labels the male sex as the one who should be stronger, bigger, and more vigorous. In this sense, perceiving oneself with a larger silhouette, even in conditions of obesity, may not be totally related to the negative stereotype of excess fat.

The female body, in turn, has suffered numerous influences over the years, especially by the media and the social environment. Although there are records of civilizations that praise women with big bodies, currently there is an overvaluation of the apparently healthy, thin, and young body as the reference for beauty and desire. More than ever, submission to the demands of society is perceived, fostered by industries that make resources available for this incessant search for the “ideal body” [2424 Araujo DC, Leoratto D. Alterações da silhueta feminina: a influência da moda. Rev Bras Ciênc Esporte. 2013;35:717-39. https://doi.org/10.1590/s0101-32892013000300014
https://doi.org/10.1590/s0101-3289201300...
]. For Araújo et al. [2424 Araujo DC, Leoratto D. Alterações da silhueta feminina: a influência da moda. Rev Bras Ciênc Esporte. 2013;35:717-39. https://doi.org/10.1590/s0101-32892013000300014
https://doi.org/10.1590/s0101-3289201300...
], the search for the ideal body and the distortion of the current image is linked to the ego, the social imposition, and the standards imposed by the media, thus revealing a fine line between the healthy and the harmful. Although people are aware of this paradigm and the health risks involved, such aesthetic standards remain desirable to many far and wide. Marques et al. [2525 Marques MD, Paxton SJ, McLean SA, Jarman, HK, Sibley CG. A prospective examination of relationships between social media use and body dissatisfaction in a representative sample of adults. Body Image. 2022;40:1-11. https://doi.org/10.1016/j.dsx.2018.07.015
https://doi.org/10.1016/j.dsx.2018.07.01...
] conducted a prospective examination of the relationships between social media use and body dissatisfaction in a representative sample of adults. The authors concluded that greater use of social media significantly predicted body dissatisfaction one year later, especially in women. Such findings suggest that raising awareness of how to use social media positively across the community could be important actions to take.

Also, in relation to sociodemographic factors, although age individually did not present a statistically significant association with BI, it remained in the model, adjusting the relationship between BD and skin color. The present study presents a relatively small number of individuals in the sample and with a restricted age range, with little variation, which directly impacts the findings of statistical significance. Still, even with the marginal p-value, there is a tendency for younger participants to be more dissatisfied when compared to older ones. In this sense, especially among the younger public, protest behaviors can occur that make the individual vulnerable to concerns related to their body and appearance, resulting in the distortion of BI, by either overestimation or underestimation of body size [2626 Almeida MPB, Bertolazo L, Franco CB, Oliveira DV, Branco BHM. Nível de insatisfação com a autoimagem corporal em praticantes experientes e não experientes de musculação. Rev Bras Psicol Esporte. 2020;10(3). https://doi.org/10.31501/rbpe.v10i3.11618
https://doi.org/10.31501/rbpe.v10i3.1161...
].

Lipowska et al. [1111 Lipowska M, Lipowski M. Narcissism as a moderator of satisfaction with body image in young women with extreme underweight and obesity. Plos One. 2015;10:e0126724. https://doi.org/10.1371/journal.pone.0126724
https://doi.org/10.1371/journal.pone.012...
] presented adulthood as a stage of stability in the perception of BI and greater satisfaction. Tiggemann et al. [2727 Tiggemann M, McCourt A. Body appreciation in adult women: relationships with age and body satisfaction. Body Image. 2013;10:624-7. https://doi.org/10.1016/j.bodyim.2013.07.003
https://doi.org/10.1016/j.bodyim.2013.07...
], along the same lines, did not find significant differences in body satisfaction and dissatisfaction between young (18 to 34 years old) and middle-aged (35 to 49 years old) adults. In the present study, a peculiar characteristic of the sample is the fact that all participants were obese. As this is a condition that by itself negatively affects BI, it is possible that, over the years, such individuals get used to the way they perceive themselves. It was proposed by Ålgars et al. [99 Ålgars M, Santtila P, Varjonen M, Witting K, Johansson A, Jern P, et al. The adult body: how age, gender, and body mass index are related to body image. J Aging Health. 2009;21:1112-32. https://doi.org/10.1177/0898264309348023
https://doi.org/10.1177/0898264309348023...
] that it is insufficient to only study how age affects the general BI, because adults may be more satisfied with certain aspects of their bodies and less satisfied with others based on their age. Body satisfaction can also fluctuate during different stages of adult life.

The level of education was not associated with BI, corroborating other studies that evaluated adults with obesity and reinforcing that it is an irrelevant variable, given this clinical condition. It is hypothesized that individuals with a lower level of education have less knowledge about health in general and, consequently, are not clear on the repercussions caused by obesity, such as the distortion of BI itself. In addition, highly educated people generally have higher income. This provides them with more resources to cope with aesthetic issues, which can easily influence their perception of BI. Individuals with non-white skin color were more dissatisfied with their BI. The BD in black people was reported especially regarding the desire to increase the silhouette [2828 Mchiza ZJ-R, Parker W-A, Sewpaul R, Onagbiye SO, Labadarios D. Body Image and the Double Burden of Nutrition among South Africans from Diverse Sociodemographic Backgrounds: SANHANES-1. Int J Environ Res Public Health. 2020;17:e887. https://doi.org/10.3390/ijerph17030887
https://doi.org/10.3390/ijerph17030887...
]. However, these studies were also not carried out exclusively with people with obesity, who face discrimination on a daily basis. Thus, it is possible that, when added to racial prejudice and social inequalities experienced by black people, aspects related to BI have their importance accentuated for these individuals.

When analyzing lifestyle and health factors, it was noted that BMI was directly associated with the perception of current silhouette. The higher this index, the greater the silhouette perceived by the participants. This predictable result has been previously reported [2929 Ferreira APS, Szwarcwald CL, Damacena GN. Prevalência e fatores associados da obesidade na população brasileira: estudo com dados aferidos da Pesquisa Nacional de Saúde, 2013. Rev Bras Epidemiol. 2019;22:e190024. https://doi.org/10.1590/1980-549720190024
https://doi.org/10.1590/1980-54972019002...
]. However, when analyzing BD, it was not possible to detect such an association. Ferreira et al. [2929 Ferreira APS, Szwarcwald CL, Damacena GN. Prevalência e fatores associados da obesidade na população brasileira: estudo com dados aferidos da Pesquisa Nacional de Saúde, 2013. Rev Bras Epidemiol. 2019;22:e190024. https://doi.org/10.1590/1980-549720190024
https://doi.org/10.1590/1980-54972019002...
] found significant differences in BD between individuals of normal weight, grade I, and grade II obesity. The present study had a homogeneous group of participants with little variation in BMI and degrees of obesity. In this sense, finding differences in BI dissatisfaction according to BMI becomes unfeasible.

The other lifestyle factors (BF%, physical activity, sedentary behavior, and energy consumption) were not associated with the perception of current silhouette or BD. In the literature, studies linking BI with BMI are widely disseminated, rather than the percentage of fat [2929 Ferreira APS, Szwarcwald CL, Damacena GN. Prevalência e fatores associados da obesidade na população brasileira: estudo com dados aferidos da Pesquisa Nacional de Saúde, 2013. Rev Bras Epidemiol. 2019;22:e190024. https://doi.org/10.1590/1980-549720190024
https://doi.org/10.1590/1980-54972019002...
,3030 Coelho CG, Giatti L, Molina MDCB, Nunes MAA, Barreto SM. Body Image and Nutritional Status Are Associated with Physical Activity in Men and Women: the ELSA-Brasil Study. Int J Environ Res Public Health. 2015;12:6179-96. https://doi.org/10.3390/ijerph120606179
https://doi.org/10.3390/ijerph120606179...
]. A possible cause for this preference is the easy applicability and low cost of BMI. In previous studies, low levels of physical activity and high levels of sedentary behavior were associated with greater degrees of BD in individuals of all nutritional statuses [3030 Coelho CG, Giatti L, Molina MDCB, Nunes MAA, Barreto SM. Body Image and Nutritional Status Are Associated with Physical Activity in Men and Women: the ELSA-Brasil Study. Int J Environ Res Public Health. 2015;12:6179-96. https://doi.org/10.3390/ijerph120606179
https://doi.org/10.3390/ijerph120606179...
,2929 Ferreira APS, Szwarcwald CL, Damacena GN. Prevalência e fatores associados da obesidade na população brasileira: estudo com dados aferidos da Pesquisa Nacional de Saúde, 2013. Rev Bras Epidemiol. 2019;22:e190024. https://doi.org/10.1590/1980-549720190024
https://doi.org/10.1590/1980-54972019002...
]. Lower levels of physical activity and excessive sedentary behavior are associated with increased body weight and, consequently, with the development of obesity.

As for energy consumption, no association was found with BI in this study. On the other hand, Oliveira et al. [3131 Oliveira N, Oliveira Coelho GM, Cabra, MC, Bezerra FF, Faerstein E, Canella DS. Association of body image (dis) satisfaction and perception with food consumption according to the NOVA classification: Pró-Saúde Study. Appetite. 2022;144:e104464. https://doi.org/10.1016/j.appet.2019.104464
https://doi.org/10.1016/j.appet.2019.104...
] established an association between body dissatisfaction and unhealthy eating habits. This is because the women most dissatisfied with their body image had a higher consumption of ultra-processed foods. This relationship deserves public health attention, both with regard to the prevention of chronic diseases and the reduction of deleterious effects on mental health. New investigations are also suggested that explore this theme and that can clarify this relationship in greater depth.

Despite not having found an association between BI and energy consumption and the percentage of body fat, the present study was innovative in analyzing them, serving as an incentive for these variables to be studied in greater depth in the future. This study leaves as a collaboration for health professionals especially those of the physical education field who work with adults with obesity a reminder to consider aspects beyond metabolic and body composition variables and provide care for the psychosocial demand of this population. In addition, it is suggested that interventions focused on the obese population also create strategies that collaborate to change the perception of BI. Furthermore, actions of a generalized nature that aim to reduce social inequalities, especially related to sex, race, and ethnicity, can contribute not only to the evolution of society itself, but also to the prevention and treatment of obesity and other related diseases. The stigma of the “ideal body” needs to be overcome and replaced by a functional body.

It is important to consider as a limitation that the participants were about to start a period of intervention, a factor that, positively or negatively, may have interfered with the self-perception of the ideal and current silhouette. Furthermore, the reduced sample size can also be considered a weakness for allowing inferences to be statistically consolidated.

CONCLUSION

The results of this study indicated that male sex, white skin color, and higher values of BMI were the factors associated with the perception of larger body silhouettes, while only individuals with non-white skin color were associated with BI dissatisfaction.

  • How to cite this article: Streb AR, Vieira CG, Silva CS, Bertuol C, Vargas P, Del Duca GF. Factors associated with perception of the current silhouette and body image dissatisfaction in adults with obesity. Rev Nutr. 2023;36:e220116. https://doi.org/10.1590/1678-9865202336e220116
  • Support

    Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes) and the Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina (FAPESC) for the scholarship (Funding code 001.

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Edited by

Editor

Haroldo da Silva Ferreira

Publication Dates

  • Publication in this collection
    19 May 2023
  • Date of issue
    2023

History

  • Received
    20 May 2022
  • Reviewed
    16 Dec 2022
  • Accepted
    20 Dec 2022
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