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1.
Behav Ther ; 55(2): 347-360, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38418045

RESUMEN

Eating disorders (EDs) are maintained by core fears, which lead to avoidance behaviors, such as food avoidance or compensatory behaviors. Previously tested exposure-based treatments for EDs have generally focused on proximal outcomes (e.g., food), rather than addressing core fears (e.g., fear of weight gain and its consequences). The current study tested the feasibility and initial clinical efficacy of 10 sessions of imaginal and in vivo exposure for core ED fears (termed "Facing Eating Disorder Fears"), mainly fear of weight gain and its associated consequences. Participants were 36 adults with anorexia nervosa (AN), bulimia nervosa, or other specified feeding and eating disorders determined by semistructured diagnostic interviews. ED symptoms, fears, and body mass index (BMI) were assessed at pretreatment, posttreatment, and 1-month follow-up. Treatment involved 10 sessions of imaginal and in vivo exposure to ED fears in combination with in vivo exposures to feared and avoided situations as homework. ED symptoms and fears decreased from pre- to posttreatment and at 1-month follow-up. BMI increased significantly from pre- to posttreatment, particularly for those with AN. Effect sizes ranged from small to very large. ED symptoms and fears decreased and BMI increased following exposure. Increases in BMI occurred without any direct intervention on eating, suggesting that weight gain can be achieved without a specific focus on food during ED treatment. Facing Eating Disorder Fears may be a feasible stand-alone intervention for EDs. Future research must test comparative efficacy through randomized controlled trials.


Asunto(s)
Anorexia Nerviosa , Trastorno por Atracón , Bulimia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Adulto , Humanos , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Bulimia Nerviosa/diagnóstico , Bulimia Nerviosa/terapia , Anorexia Nerviosa/terapia , Miedo , Aumento de Peso , Trastorno por Atracón/terapia
2.
Appetite ; 195: 107181, 2024 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-38182054

RESUMEN

Feeling fat and fear of weight gain are key cognitive-affective symptoms that are theorized to maintain eating disorders (EDs). Little research has examined the dynamic relationships among feeling fat, fear of weight gain, emotions, cognitions, and ED behaviors. Furthermore, it is unknown if these relations vary by ED diagnosis (e.g., anorexia nervosa (AN) vs other ED). The current study (N = 94 ED participants; AN n = 64) utilized ecological momentary assessments collected four times a day for 18 days (72 timepoints) asking about feeling fat, fear of weight gain, emotions (i.e., anxiety, guilt), cognitions (i.e., feelings of having overeaten, thoughts about dieting), and ED behaviors (i.e., vomiting, diuretic/laxative use, excessive exercise, body checking, self-weighing, binge-eating, restriction) at stressful timepoints (contemporaneous [mealtime], and prospective/temporal [next-meal]). Multilevel modeling was used to test for between and within-person associations. Higher feeling fat and fear of weight gain independently predicted higher next-meal emotions (i.e., anxiety, guilt), cognitions (i.e., feelings of having overeaten, thoughts about dieting, fear of weight gain, feeling fat), and ED behaviors (i.e., body checking, self-weighing [feeling fat]). There were relationships in the opposite direction, such that some emotions, cognitions, and ED behaviors prospectively predicted feeling fat and fear of weight gain, suggesting existence of a reciprocal cycle. Some differences were found via diagnosis. Findings pinpoint specific dynamic and cyclical relationships among feeling fat, fear of weight gain, and specific ED symptoms, and suggest the need for more research on how feeling fat, fear of weight gain and cognitive-affective-behavioral aspects of ED operate. Future research can test if treatment interventions targeted at feeling fat and fear of weight gain may disrupt these cycles.


Asunto(s)
Trastorno por Atracón , Trastornos de Alimentación y de la Ingestión de Alimentos , Humanos , Estudios Prospectivos , Emociones , Miedo , Aumento de Peso , Hiperfagia
3.
Behav Sci (Basel) ; 13(7)2023 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-37504021

RESUMEN

When evaluating ambiguous situations, humans sometimes use their behavior as a source of information (behavior-as-information effect) and interpret safety behaviors as evidence for danger. Accordingly, we hypothesized that eating disorder safety behaviors (restrictive eating, body checking, etc.) might aggravate fear and anxiety in individuals with an eating disorder. The present study tested to what extent eating disorder safety behaviors increase threat perception in individuals with and without an eating disorder. For this, 108 individuals with a self-reported eating disorder diagnosis and 82 healthy controls rated the dangerousness of several short situations. The situations systematically varied in the presence of eating disorder safety behaviors and danger information. As expected, all participants perceived situations in which the protagonist executed an eating disorder safety behavior as more threatening than situations without a safety behavior. This 'behavior-as-information' effect was equally strong in individuals with and without an eating disorder. Additionally, safety behaviors strengthened threat perception more in safe situations than in dangerous situations. To conclude, the presence of eating disorder safety behavior can increase threat perception regardless of whether individuals have an eating disorder or not. This makes eating disorder safety behaviors a potential risk factor for the development and maintenance of eating disorder fears.

4.
Eur Eat Disord Rev ; 31(6): 863-873, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37436089

RESUMEN

OBJECTIVE: Maladaptive exercise (i.e., driven and/or compensatory exercise) is common in binge-spectrum eating disorders (EDs; e.g., bulimia nervosa, binge ED) and associated with adverse treatment outcomes. Alternatively, individuals with EDs are often also engaging in adaptive exercise (e.g., for enjoyment or health improvement), and increasing adaptive exercise may decrease ED symptoms. The current study aimed to understand which exercise episodes are likely to be maladaptive/adaptive so that interventions can appropriately decrease/increase maladaptive and adaptive exercise. METHOD: We used latent profile analysis (LPA) to identify pre-exercise affective profiles of 661 exercise episodes among 84 individuals with binge-spectrum EDs and examined associations between LPA-identified profiles and subsequent exercise motivations using ecological momentary assessment. RESULTS: A two-profile solution best fit our data: Profile 1 (n = 174), 'positive affectivity,' and Profile 2 (n = 487), 'negative affectivity.' Episodes in the 'negative affectivity' profile were more likely to be endorsed as both driven and intended to influence body shape/weight. Episodes in the 'positive affectivity' profile were more likely to be endorsed as exercising for enjoyment. CONCLUSIONS: Results support two phenotypes of exercise episodes, and differential associations of these phenotypes with adaptive and maladaptive motivations for exercise.


Asunto(s)
Trastorno por Atracón , Bulimia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Humanos , Motivación , Trastorno por Atracón/psicología , Bulimia Nerviosa/psicología , Ejercicio Físico/psicología , Evaluación Ecológica Momentánea
5.
Eat Weight Disord ; 28(1): 29, 2023 Mar 06.
Artículo en Inglés | MEDLINE | ID: mdl-36879078

RESUMEN

PURPOSE: Fear of weight gain may play a central role in maintaining eating disorders (EDs), but research on the role of fear of weight gain during cognitive behavioral therapy (CBT-E) for binge-spectrum EDs is sparse. We examined changes in fear of weight gain during CBT-E for binge-spectrum EDs. We investigated whether fear of weight gain predicted loss of control (LOC) eating or weight change. METHODS: Participants (N = 63) were adults of any gender recruited as part of a larger trial. Participants received 12 sessions of CBT-E, completed diagnostic assessments at pre-, mid-, and post-treatment, and completed brief surveys before sessions. RESULTS: Fear of weight gain decreased across treatment, moderated by diagnosis. Those with bulimia nervosa spectrum EDs (BN-spectrum), compared to binge eating disorder, reported higher fear of weight gain at baseline and experienced a larger decrease in fear across treatment. Those reporting higher fear of weight gain at a given session experienced more frequent LOC episodes the following week. Fear of weight gain was not associated with session-by-session changes in BMI. CONCLUSION: CBT-E results in decreases in fear of weight gain, but levels remain high at post-treatment, especially for those with BN-spectrum EDs. Future interventions should consider targeting fear of weight gain as a maintaining factor for LOC episodes TRIAL REGISTRATION: NCT04076553. LEVEL OF EVIDENCE: Level II controlled trial without randomization.


Asunto(s)
Trastorno por Atracón , Bulimia Nerviosa , Terapia Cognitivo-Conductual , Trastornos de Alimentación y de la Ingestión de Alimentos , Adulto , Humanos , Trastorno por Atracón/terapia , Bulimia Nerviosa/terapia , Miedo , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Aumento de Peso
6.
Body Image ; 42: 347-360, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35926364

RESUMEN

Body image disturbance is core to the psychopathology of eating disorders (EDs), and related disorders such as muscle dysmorphia (MD). Global measures of body image fail to quantify specific aspects of body image disturbance that characterizes EDs, and may be differentially associated to outcomes. The aim of this systematic review was to provide an overview of specific body image facets and synthesize findings from controlled studies that compared clinical ED/MD and control-comparison groups in body image disturbance. One-hundred sixty-seven studies met inclusion criteria, and reported on comparisons among 30,584 individuals in 28 body image facets, which were more broadly grouped into evaluative, perceptual, cognitive-affective and motivational categories for the purpose of the present review. Effect sizes were calculated as Cohen's d for every comparison between ED and control groups. Body dissatisfaction (evaluative category) was the most prevalent facet assessed across studies (62 %), and differences between clinical and control groups were the largest in this category, especially for bulimia nervosa (d = 1.37). Scarcity of studies with male and MD clinical samples, and use of single-item and non-validated measures, should encourage development of instruments for body image facets pertinent to EDs and MD that can be validly applied across gender.


Asunto(s)
Anorexia Nerviosa , Bulimia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Anorexia Nerviosa/psicología , Imagen Corporal/psicología , Bulimia Nerviosa/diagnóstico , Bulimia Nerviosa/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/diagnóstico , Humanos , Masculino , Músculos
7.
Int J Eat Disord ; 55(4): 541-552, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-35088433

RESUMEN

OBJECTIVE: Fear of weight gain (FOWG) is increasingly implicated in the maintenance of binge-spectrum eating disorders (EDs; e.g., bulimia nervosa [BN], binge-eating disorder [BED]) through the pathway of increased dietary restriction. However, particularly in binge-spectrum EDs, research is nascent and based on retrospective self-report. To improve treatment outcomes, it is critical to better understand the momentary relations between FOWG and dietary restriction. METHOD: Sixty-seven adults with binge spectrum EDs completed a 7-14-day ecological momentary assessment protocol that included items regarding FOWG, ED behaviors, and types of dietary restriction (e.g., attempted restraint vs. actual restriction) several times per day. Multilevel models were used to evaluate reciprocal associations between FOWG and dietary restriction, and to evaluate the indirect of effects of dietary restriction on the relation between FOWG and binge eating. RESULTS: While main effects were not statistically significant, ED presentation significantly moderated the association between increases in FOWG at time1 and both attempted and actual avoidance of enjoyable foods at time2 such that those with BN-spectrum EDs were more likely to avoid enjoyable foods following increased FOWG compared to those with BED-spectrum EDs. Engagement in restriction at time1 was not associated with decreased FOWG at time2. DISCUSSION: Prospective associations between FOWG and restriction suggest that individuals with BN may be more likely to restrict their eating following increased FOWG. These findings suggest FOWG may be an important target for future treatments.


Asunto(s)
Trastorno por Atracón , Bulimia Nerviosa , Trastornos de Alimentación y de la Ingestión de Alimentos , Adulto , Miedo , Humanos , Estudios Retrospectivos , Aumento de Peso
8.
Eat Weight Disord ; 27(6): 2121-2128, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35064918

RESUMEN

PURPOSE: Maladaptive exercise (i.e., exercise that is either driven or compensatory) is thought to momentarily down-regulate elevated fear of weight gain (FOWG). However, little research has examined associations between FOWG and exercise, and no research has measured FOWG at a momentary level or considered exercise type (i.e., maladaptive vs. adaptive). Thus, we examined both within- and between-subject associations between FOWG and exercise among individuals with trans-diagnostic binge eating. METHODS: We recruited treatment-seeking adults (N = 58, 82.9% female) to complete a 7-14-day ecological momentary assessment protocol which assessed levels of FOWG and exercise engagement and type. Mixed models and generalized estimating equations assessed within-subject associations, and linear regression assessed between-subject associations. RESULTS: There was no main effect of FOWG on exercise engagement at the next survey. However, unexpectedly, exercise type moderated this relationship such that the relationship between FOWG and exercise was strongest for episodes of adaptive exercise. Overall exercise frequency accounted for 10.4% of the variance in FOWG and exercise type explained an additional 1.7% of the variance in FOWG. CONCLUSION: The findings of the current study indicate that momentary levels of FOWG are associated with subsequent adaptive exercise episodes, while higher overall levels of maladaptive exercise were associated with higher levels of FOWG. Future treatments should place a greater emphasis on reducing the frequency of maladaptive exercise by providing strategies for reducing FOWG. LEVEL OF EVIDENCE: Level IV: Evidence obtained from multiple time series analysis such as case studies.


Asunto(s)
Trastorno por Atracón , Bulimia Nerviosa , Bulimia , Ejercicio Físico , Adulto , Trastorno por Atracón/diagnóstico , Bulimia/diagnóstico , Bulimia Nerviosa/diagnóstico , Evaluación Ecológica Momentánea , Miedo , Femenino , Humanos , Masculino , Aumento de Peso
9.
J Eat Disord ; 9(1): 26, 2021 Feb 18.
Artículo en Inglés | MEDLINE | ID: mdl-33602332

RESUMEN

BACKGROUND: Fear of weight gain is a characteristic feature of anorexia nervosa (AN), and reducing this fear is often a main target of treatment. However, research shows that 20% of individuals with AN do not report fear of weight gain. Studies are needed that evaluate the centrality of fear of weight gain for AN with a method less susceptible to deception than self-report. METHODS: We approximated implicit fear of weight gain by measuring implicit drive for thinness using implicit association tests (IATs). We asked 64 participants (35 AN, 29 healthy controls [HCs]) to categorize statements as pro-dieting vs. non-dieting and true vs. false in a questionnaire-based IAT, and pictures of underweight vs. normal-weight models and positive vs. negative words in a picture-based IAT using two response keys. We tested for associations between implicit drive for thinness and explicitly reported psychopathology within AN as well as group differences between AN and HC groups. RESULTS: Correlation analyses within the AN group showed that higher implicit drive for thinness was associated with more pronounced eating disorder-specific psychopathology. Furthermore, the AN group showed a stronger implicit drive for thinness than HCs in both IATs. CONCLUSION: The results highlight the relevance of considering fear of weight gain as a continuous construct. Our implicit assessment captures various degrees of fear of weight gain in AN, which might allow for more individually tailored interventions in the future.

10.
Eat Weight Disord ; 26(1): 385-393, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32052312

RESUMEN

PURPOSE: Weight concern, including fear of weight gain and sensitivity to weight gain, is indicative of disordered eating in individuals with underweight or healthy weight. It is unknown, however, whether or how these constructs present in individuals with excess weight, particularly among those with binge-eating disorder (BED). This study sought to characterize fear of weight gain and sensitivity to weight gain and examine their relationship with disordered eating and depression symptoms, in individuals seeking weight loss treatment, both with and without BED. METHODS: Adults seeking weight loss treatment in an urban primary care clinic (N = 131) completed the Eating Disorder Examination interview and Beck Depression Inventory. Height and weight were collected. RESULTS: Clinical levels of fear of weight gain and sensitivity to weight gain were present in this sample. Individuals with BED reported experiencing fear of weight gain (48.6%), significantly more than those without BED (20.9%); both groups reported similar and clinically elevated sensitivity to weight gain. Both constructs were related to greater levels of disordered eating and depression symptoms, at times based on BED status. Fear of weight gain was associated with overvaluation of weight and shape for those without BED only. Objective and subjective bulimic episodes were unrelated to fear of weight gain or sensitivity to weight gain, regardless of BED status. CONCLUSION: Fear of weight gain and sensitivity to weight gain were common in this sample and may be maladaptive, as evidenced by associations with elevated eating psychopathology. Future studies should examine these variables within larger samples and should employ longitudinal designs. LEVEL OF EVIDENCE: Level III: case-control analytic study.


Asunto(s)
Trastorno por Atracón , Pérdida de Peso , Adulto , Trastorno por Atracón/terapia , Imagen Corporal , Peso Corporal , Miedo , Humanos , Aumento de Peso
11.
Int J Eat Disord ; 53(12): 1960-1973, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32918319

RESUMEN

OBJECTIVE: Eating-related fear and anxiety are hallmark symptoms of eating disorders (EDs). However, it is still unclear which fears are most important (e.g., food, weight gain), which has practical implications, given treatments for eating-related fear necessitate modifications based on the specific fear driving ED pathology. For example, exposure treatments should be optimized based on specific fears that maintain pathology. The current study (N = 1,622 combined clinical ED and undergraduate sample) begins to answer questions on the precise nature of ED fears and how they operate with other ED symptoms. METHOD: We used network analysis to create two models of ED fears and symptoms. The first model consisted of ED fears only (e.g., fears of food, fears of weight gain) to identify which fear is most central. The second model consisted of ED fears and ED symptoms to detect how ED fears operate with ED symptoms. RESULTS: We found fear of disliking how one's body feels due to weight gain, disliking eating in social situations, feeling tense around food, fear of judgment due to weight gain, and food anxiety were the most central ED fears. We also identified several bridge symptoms between ED fears and symptoms. Finally, we found that the most central ED fears predicted excessive exercise at two-month follow-up. DISCUSSION: These data support the idea that consequences (i.e., judgment) associated with fears of weight gain and interoceptive fears are the most central ED fears. These data have implications for the future development of precision interventions targeted to address ED-related fear.


Asunto(s)
Miedo/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
12.
J Affect Disord ; 277: 146-152, 2020 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-32828001

RESUMEN

BACKGROUND: Eating disorders (EDs) are most always accompanied by cognitive-affective comorbidities, such as anxiety and depression. In addition to these common comorbidities, EDs are unique in that they are characterized by affective symptoms centered on body image and weight. Two of these primary, yet understudied, affective symptoms are feelings of fatness and fears of weight gain, which are theorized to be maintaining symptoms of EDs and are highly common in those with EDs. Despite the importance of these symptoms, there is no research characterizing which cognitive-affective symptoms contribute to feelings of fatness and fears of weight gain. METHODS: The current study (N=168 individuals with an ED) tested cross-sectional and prospective models of cognitive-affect variables (negative affect, guilt, shame, fear of negative evaluation, anxiety sensitivity, and depression) to identify which thoughts and emotions were uniquely associated and prospectively predicted feelings of fatness and fear of weight gain. RESULTS: Depression both cross-sectionally and prospectively predicted feeling fat over and above all other forms of affect. Fears of negative evaluation and depression were uniquely associated with fears of weight gain, and shame prospectively predicted fear of weight gain. LIMITATIONS: Variables were self-reported, and the sample primarily consisted of women. Fear of weight gain and feelings of fatness were assessed using single items. CONCLUSIONS: This research suggests that depression may be an important intervention target when individuals with an ED report feeling fat. Additionally, treatment targeting fear of negative evaluation, depression, and shame may decrease fears of weight gain.


Asunto(s)
Emociones , Miedo , Ansiedad , Estudios Transversales , Femenino , Humanos , Estudios Prospectivos , Vergüenza , Aumento de Peso
13.
Front Psychol ; 11: 90, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32082227

RESUMEN

With the introduction of new diagnostic criteria in DSM-5, fear of weight gain no longer represents a sine qua non-criterion for the diagnosis of anorexia nervosa (AN). This is of relevance as a subgroup of individuals with AN denies fear of weight gain as the reason for restrictive eating but still remain at a very low weight. As self-reports are susceptible to bias, other methods are needed to confirm the existence of the subtype in order to provide adapted treatment. Therefore, we aimed to measure fear of weight gain using a novel method in clinical psychology, the conjoint analysis (CA). Relative importance and preference scores for various life aspects, including appearance/shape and weight were assessed in women with fat-phobic AN (FP-AN, n = 30), NFP-AN (n = 7), and healthy controls (n = 29). Individuals with FP-AN showed a significant lower preference for weight gain versus weight maintenance than HC (p = 0.011, η p 2 = 0.107). Correlation between explicitly assessed drive for thinness and CA score was low. As expected, in FP-AN the explicitly endorsed fear of weight gain was confirmed by the marked preference for weight maintenance compared to HC, while for NFP-AN explicit and implicit measures diverged, indicating that against their self-report they may experience at least some fear of weight gain. The utility of CA as a tool to measure fear of weight gain - and potentially other psychopathological constructs -requires further confirmation.

14.
Eat Weight Disord ; 25(3): 643-648, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30859464

RESUMEN

PURPOSE: Previous research has found that fear of fat, or the fear of gaining weight, is fairly common within both normative and clinical populations. Similarly, weight bias, or biased attitudes directed at obese individuals, has been found across multiple segments of society. A common link shared between fear of fat and weight bias is the inherent emphasis on anti-fat feelings. Previous research has demonstrated an anti-fat bias within media content. Therefore, the purpose of the current research is to examine exposure to appearance-focused media as a moderator of the relationship between fear of fat and weight bias. METHODS: One hundred and eighty-seven female participants (Mage = 21.05, MBMI = 22.60) were administered a battery of assessments, including the Goldfarb Fear of Fat Scale and the Universal Measure of Bias of Fat Scale. Participants were also asked to report their frequency of exposure to appearance-focused media (TV and magazines). RESULTS: Results of this study suggest that appearance-focused media partially moderated the relationship between fear of fat and weight bias. CONCLUSIONS: This suggests the messages portrayed by the media may be strengthening the relationship between fear of gaining weight and discrimination directed at obese individuals. Understanding this relationship has important implications for reducing weight stigma. LEVEL OF EVIDENCE: Level V, cross-sectional descriptive study.


Asunto(s)
Actitud , Imagen Corporal/psicología , Peso Corporal/fisiología , Miedo/psicología , Medios de Comunicación de Masas , Estigma Social , Adolescente , Índice de Masa Corporal , Femenino , Humanos , Estereotipo , Adulto Joven
15.
Int J Eat Disord ; 52(5): 582-585, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30702170

RESUMEN

OBJECTIVE: To ascertain the role of baseline measures of body-image concern (BIC) in changes in body mass index (BMI) centile and psychopathological outcomes associated with intensive enhanced cognitive behavioral therapy (CBT-E) in adolescents with anorexia nervosa (AN). METHOD: The BMI centile of 62 adolescent patients with AN was recorded at four time-points over 12 months, and Eating Disorder Examination interview (EDE) and Brief Symptom Inventory (BSI) scores, were recorded at admission and discharge from CBT-E. Changes in three BIC components, namely "Preoccupation with shape/weight", "Fear of weight gain" and "Feeling fat", were assessed at admission and discharge. RESULTS: CBT-E was associated with a significant improvement in outcome variables and BIC components. Among completers, 96.4% reached an end-of treatment BMI centile corresponding to a BMI ≥ 18.5 at 18 years, which fell slightly to 78.7% and 80.4% at 6- and 12-month follow-ups, respectively. Baseline "Preoccupation with shape/weight" and "Feeling fat" predicted improvement in BMI centile over time, and all three baseline BIC components independently predicted end-of-treatment EDE Eating Concern subscale score. Baseline "Feeling fat" also predicted end-of-treatment EDE Dietary Restraint subscale and BSI scores. DISCUSSION: These findings highlight the importance of assessing and addressing body image when managing adolescent patients with AN.


Asunto(s)
Anorexia Nerviosa/psicología , Imagen Corporal/psicología , Terapia Cognitivo-Conductual/métodos , Adolescente , Femenino , Humanos , Resultado del Tratamiento
16.
Front Psychol ; 9: 2303, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30532724

RESUMEN

Anorexia nervosa (AN) is uncommon as a syndrome, despite widespread dieting or voluntary food restriction, especially among female adolescents. This suggests that restriction of caloric intake might not be the only component driving weight loss in AN. Historical observations and experimental evidence from energy expenditure studies and recordings from movement sensors reviewed in this paper reveal that AN is associated with motor activity levels and with an energy output not significantly different from that in normal-weight healthy age-matched controls. By contrast, other conditions of prolonged caloric under-nutrition are typically associated with loss of energy, slowing of movements and a decrease in self-initiated activity and well-being. Several hypotheses can be inferred from the findings: (a) that long term severe caloric restriction fails in downregulating movements and energy expenditure in AN. (b) Clinically and subjectively observable as mental and physical restlessness and continued motor activity, this restless energy, differing in intensity, seems to serve as the permissive factor for and possibly to drive exercise and hyperactivity in AN. (c) Such restless energy and increased arousal, generated sometime in the course of the weight loss process, appear to enhance the person's self-perception and wellbeing, to heighten proprioception, to intensify body awareness and to improve self-esteem. (d) Restlessness and continued motor activity may constitute a phenotype of AN. The therapeutic value of the concept of an abnormality in the energy regulatory system, likely the result of a host of genetic and epigenetic changes in AN, lies primarily in its heuristic and explanatory power and its potential for disease prevention. Restless energy as a permissive and important component for the development and in the maintenance of AN, does not fundamentally alter treatment, since prolonged food deprivation is the principal causal factor for the development of AN. Re-nutrition within a structured treatment plan, to include individual and family therapy and, if indicated, heat application, remains the most effective symptomatic treatment for AN. Corroboration of the concept of restless activation will require the patient's cooperation and input to identify and capture more precisely the experiences, sensations, and changes that allow the emaciated patient to remain mobile and active.

17.
Body Image ; 27: 1-9, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30086480

RESUMEN

This study used network analyses to test the hypotheses that desire for thinness and fear of gaining weight are related but distinct constructs that play a central role in disordered eating. Data from a sample of 251 college women were used. Sparse undirected eating disorder symptom networks were calculated. Bootstrapped difference tests for edge weights and centrality indices were used to compare the position of desire for thinness and fear of gaining weight. Desire for thinness and fear of gaining weight exhibited unique patterns of associations within the network. Desire for thinness was highly connected to body dissatisfaction, thoughts about dieting, and thoughts about binge eating. Fear of gaining weight was not. Desire for thinness emerged as the most central symptom. Our findings support the distinction between fear of gaining weight and desire for thinness and their different roles within the eating disorder symptom network.


Asunto(s)
Imagen Corporal/psicología , Miedo , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Delgadez/psicología , Aumento de Peso , Adolescente , Síntomas Conductuales/psicología , Trastorno Dismórfico Corporal/diagnóstico , Trastorno Dismórfico Corporal/psicología , Bulimia/psicología , Dieta Reductora/psicología , Femenino , Humanos , Motivación , Estudiantes/psicología , Adulto Joven
18.
Curr Psychiatry Rep ; 20(9): 67, 2018 08 06.
Artículo en Inglés | MEDLINE | ID: mdl-30079431

RESUMEN

PURPOSE OF REVIEW: Network analysis (NA) is an emerging methodology that allows for the characterization of maintaining symptoms and pathways among symptoms of mental disorders. The current paper provides background on NA and discusses the relevance of the network approach for the conceptualization of eating disorders (ED). RECENT FINDINGS: We review the burgeoning literature conceptualizing ED from a network approach. Overall, these papers find that fear of weight gain and overvaluation of weight and shape are core symptoms in networks of ED pathology. We integrate literature on new advances in network methodology (e.g., within-person NA) and the clinical relevance of these approaches for the ED field (e.g., personalized ED treatment). We also provide several considerations (e.g., replicability, sample size, and node (item) selection) for researchers who are interested in using network science and recommend several emerging "best practices" for NA. Finally, we highlight novel applications of NA, specifically the ability to identify within-person maintaining symptoms, and the potential treatment implications for ED that network methods may hold. Overall, NA is a new methodology that holds significant promise for new treatment development in the ED field.


Asunto(s)
Investigación Conductal , Formación de Concepto , Trastornos de Alimentación y de la Ingestión de Alimentos/psicología , Trastornos de Alimentación y de la Ingestión de Alimentos/terapia , Peso Corporal , Miedo , Humanos
19.
Behav Res Ther ; 105: 63-68, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29689516

RESUMEN

OBJECTIVE: The study aimed to evaluate the trajectories of change over time in body-image concern components in patients with anorexia nervosa treated by means of intensive enhanced cognitive behavioural therapy. Moreover, it aimed to study the role of body-image concern components in changes in eating and general psychopathology as well as work and social functioning. METHOD: Sixty-six adult patients with anorexia nervosa were recruited. Body mass index (BMI); Eating Disorder Examination 'Dietary Restraint' and 'Eating Concern' subscales; Brief Symptom Inventory (BSI); and Work and Social Adjustment Scale (WSAS) scores were recorded at admission, end of treatment, and at 6- and 12-month follow-ups. The trajectories of change of three components of body image concern, namely 'preoccupation with shape or weight', 'fear of weight gain' and 'feeling fat', were assessed. RESULTS: The treatment was associated with a significant improvement in outcome variables and body-image concern components. Baseline 'preoccupation with shape or weight' predicted improvement in Eating Concern, BSI and WSAS scores, while the change in 'fear of weight gain' was associated with improvement in dietary restraint. Baseline and end-of-therapy scores for all three measured body-image concern components predicted achievement of BMI ≥18.5 kg/m2 at 6- and 12-month follow-ups. DISCUSSION: These findings highlight the importance of assessing and addressing body-image concern in the management of patients with anorexia nervosa.


Asunto(s)
Anorexia Nerviosa/psicología , Ansiedad/psicología , Imagen Corporal/psicología , Emociones , Miedo/psicología , Autoimagen , Adulto , Anorexia Nerviosa/terapia , Terapia Cognitivo-Conductual , Femenino , Humanos , Estudios Longitudinales , Masculino , Ajuste Social , Resultado del Tratamiento , Aumento de Peso/fisiología , Adulto Joven
20.
Eat Behav ; 29: 54-58, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29518651

RESUMEN

Recent research has demonstrated that certain components of body image (i.e., shape and weight over-evaluation, preoccupation, and dissatisfaction) in secondary school students shared a distinct clinical significance because of their differential relation to measures of psychopathology. The present study aimed to replicate and extend on these findings by examining the distinctiveness of these body image constructs, in addition to a fear of weight gain, in individuals with anorexia nervosa (AN)-a disorder this is facilitated and maintained by extreme body image concerns. Treatment-seeking females with AN (n = 124) completed a questionnaire battery that measured these constructs. Findings demonstrated that once any shared variance between body image components was removed in regression analyses, fear of weight gain was the only unique predictor of eating disorder psychopathology (e.g., dietary restraint and compulsive exercise), while over-evaluation and preoccupation were the only unique predictors of general psychopathology (e.g., depressive and anxiety symptoms). Overall, these findings demonstrate certain components of body image may operate differently in AN, and reinforce previous calls to consider and assess for distinct facets of body image in this population.


Asunto(s)
Anorexia Nerviosa/psicología , Imagen Corporal/psicología , Adolescente , Adulto , Anorexia Nerviosa/diagnóstico , Anorexia Nerviosa/terapia , Cognición , Estudios Transversales , Miedo , Femenino , Humanos , Satisfacción Personal , Psicopatología , Encuestas y Cuestionarios , Aumento de Peso , Adulto Joven
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