Eating behaviors最新文献

Exposure to idealized social media imagery has been shown to be detrimental to body image among young women, and social media literacy may be protective. This mixed methods study aimed to evaluate the effects of an online video narrated by a high-profile, plus-size model on the body image and negative mood of young women and predictors of the effects. A sample of 304 young women, average age 20.95 (SD = 2.09) years, completed an online survey including pre- and post-exposure measures of state body image and negative mood, and trait measures of upward social media appearance comparison, thin-ideal internalization, and selfie-investment. A subset (n = 148) responded to open-ended questions to obtain feedback on the video coded categorically and through thematic analysis. Findings revealed immediate improvements in state body satisfaction and negative mood, with higher levels of trait appearance comparison and selfie investment associated with smaller effects of the video. Participants endorsed the video as raising awareness of unrealistic images but limited in terms of mitigating appearance comparison and selfie-investment. Furthermore, participants described that Iskra's status as a professional model also influenced their reactions. These findings highlight the importance of assessing for unintended paradoxical effects of social media literacy efforts and ensuring that such interventions are empirically based.

Objectives

Weight suppression (WS) defines the difference between the highest weight in adulthood and the current weight. WS at lowest weight is the difference between the highest and the lowest ever weight. Weight rebound is the difference between the past lowest weight and current weight. The distinction in the capacities of WS, weight rebound, and WS at the lowest weight remains unclear regarding their efficacy in forecasting clinical endpoints. This study assessed the relationship between WS, WS at lowest weight and/or weight rebound and eating disorder (ED) clinical severity.

Methods

In this retrospective cohort study, adult participants were selected at the Outpatient Unit for multidisciplinary assessment of ED, Montpellier, France, between February 2012 and October 2014 and May 2017 and January 2020. ED clinical severity was evaluated using the Eating Disorder Examination Questionnaire (EDE-Q).

Results

The sample included 303 patients: 204 with anorexia nervosa (AN) and 99 with bulimia nervosa (BN). The EDE-Q total score was positively correlated with WS at lowest weight in patients with AN (Spearman's rho = 0.181, p = 0.015) and with BN (Spearman's rho = 0.377; p < 0.001). It was also positively correlated with weight rebound (Spearman's rho = 0.319; p = 0.003) in patients with BN. In the multivariate analysis, EDE-Q total score was associated with WS at lowest weight only in patients with BN (β = 0.265; p = 0.03).

Conclusion

WS at lowest weight seems to be a good measure of ED clinical severity. More research is needed for better understanding WS at lowest weight in assessment and treatment of patients with ED.

Anxiety sensitivity (AS) – characterized by a persistent fear that arousal-related bodily sensations will lead to serious cognitive, physical, and/or social consequences – is associated with various psychopathologies, including depressive symptoms and binge eating. This 3-week, 3-wave longitudinal study examined the relation between AS (including its global AS factor and lower-order AS cognitive, physical, and social concern dimensions), depressive symptoms, and binge eating among 410 undergraduates from two universities. Using generalized estimating equation models, we found that global AS, AS social concerns, and depressive symptoms predicted binge eating during any given week. Mediation analyses showed that global AS (as a latent variable with its lower-order AS dimensions as indicators), AS cognitive concerns, and AS physical concerns at Wave 1 predicted subsequent increases in depressive symptoms at Wave 2, which, in turn, led to increases in binge eating at Wave 3. Findings contribute to a better understanding of the interplay between AS, depressive symptoms, and binge eating, highlighting the role of binge eating as a potential coping mechanism for individuals with high AS, particularly in managing depressive symptoms. This study underscores the importance of AS-targeted intervention and prevention efforts in addressing depressive symptoms and binge eating.

Intuitive eating (IE) is an adaptive eating behavior that involves paying attention to the body's physiological signals, including eating when hungry and stopping when feeling full. A growing body of literature has examined the effect of IE on the development of maladaptive eating behaviors and body weight, even though IE is not centered around the latter. However, longitudinal observation studies among the general population are still rare. Therefore, this study aimed to longitudinally examine the links between IE and changes in body weight, maladaptive eating behaviors (reward, external, restrained eating), and overeating frequency over time. For this purpose, we used data from the first (2017) and the fourth waves (2020) of the Swiss Food Panel 2.0 survey, which included 1821 randomly selected Swiss participants. The same participants completed a self-administered questionnaire annually, measuring their self-reported eating behaviors and weight status. IE was measured with the Intuitive Eating Scale-2. Results showed that women with high IE scores were more likely to maintain their body weights (within ±2 kg) and less likely to gain weight (>2 kg) than women with low IE scores. No such effects were found for men. Furthermore, IE was linked to a reduction in maladaptive eating behaviors and overeating frequency over time in both genders. Results suggest that IE may counteract maladaptive eating behaviors, which can promote weight stability over time. Therefore, the encouragement of IE patterns seems to be a promising strategy to address problematic eating behaviors and the challenges associated with controlling food intake and prevention of overeating.

Cognitive and behavioral inflexibility are transdiagnostic maintaining mechanisms of varied psychopathologies, including eating disorders (ED). The Eating Disorder Flexibility Index (EDFLIX) is the only psychometrically validated self-report measure of general and ED-specific flexibility in the published literature. The EDFLIX was originally developed in Scandinavian adult clinical and healthy control samples but is increasingly used in its English version in other populations, including adolescent and nonclinical samples, raising questions about its validity and reliability in diverse groups. This study examined the factor structure of the previously published English EDFLIX in undergraduates (n = 578, 57.6 % female, 50.2 % White). Parallel and exploratory factor analysis suggested the EDFLIX may comprise two or three underlying factors. However, follow-up confirmatory factor analyses from nonclinical student and clinical ED-diagnosed (n = 69, 87.0 % female, 91.3 % White) samples did not support either model. Further, EDFLIX scores did not correlate with established neuropsychological measures of cognitive flexibility typically used in prior research on flexibility in EDs. Findings suggest the EDFLIX has poor psychometric properties in certain groups and may not capture underlying aspects of flexibility as previously proposed. Future research should explore alternative versions of the EDFLIX along with its psychometric properties across various samples.

Viewing fitspiration (fitness inspiration) has been found to increase body dissatisfaction and negative affect; however, minimal research has examined how body dissatisfaction and related variables differ based on intentionality of fitspiration exposure. This study's aim was to examine differences in levels of weight/shape concerns, disordered eating, and self-compassion according to type of fitspiration exposure. Participants included 234 female undergraduate students who completed online questionnaires. We created three groups of fitspiration exposure based on their self-report of Instagram exposure: unexposed (neither view nor post fitspiration; n = 43), incidentally exposed (report seeing fitspiration content unintentionally; n = 119), and intentionally exposed (intentionally view and/or post fitspiration; n = 72). Weight/shape concerns, disordered eating, and self-compassion were significantly worse in the intentionally exposed group and incidentally exposed group compared to the unexposed group. These results suggest that exposure to fitspiration, regardless of intention, may be problematic and should be limited.

The aim of our study was to validate the Eating Disorder Diagnostic Scale (EDDS-5) updated for the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) with a diverse veteran population against a clinician-administered interview based on the Structured Clinical Interview for DSM-5 (SCID-5). Our sample included 343 veterans, 18–75 years, recruited April 2019 to December 2022 who completed the EDDS-5 as well as other eating disorder and mental health measures. A subsample of these veterans received clinical interviews (n = 166), which were used to validate the EDDS-5. We found that despite multiple proposed modifications, the EDDS-5 performed poorly at correctly identifying diverse veterans who were diagnosed as having eating disorders through clinician-administered interviews. The sensitivity was very low, indicating that using the EDDS-5 did not identify many true positives and may also over diagnose those without true eating disorders. The EDDS-5 may not be the best for screening or diagnostic purposes among diverse samples like veterans.