Developmental Trajectories of Boys' Driven Exercise and Fasting During the Middle School Years

Psychosocial etiology of maladaptive exercise and its role in eating disorders: A systematic review

OBJECTIVE

Although maladaptive exercise (ME) is widely recognized as a clinical feature in transdiagnostic eating disorders, less is known about psychosocial factors that give rise to and perpetuate this behavior. This systematic review aimed to examine the empirical status of this association.

METHOD

We reviewed 46 full text articles examining longitudinal associations between psychosocial variables and ME.

RESULTS

Eighteen studies met full inclusion criteria. Based on our qualitative synthesis, evidence suggests reasonably consistent associations between early concern with weight and shape, and negative affect on later development of ME.

DISCUSSION

Inconsistent and insufficient assessment of ME across a majority of studies underscores caution in interpretation of results, but guides important discussion for future clinical and research efforts.

The Occurrence and Covariation of Binge Eating and Compensatory Behaviors Across Early to Mid-Adolescence

The purpose of this study was to examine the occurrence and covariation of four eating disorder behaviors across the elementary, middle, and high school years. In a sample of 1,906 youth measured over 5 years at nine time points, from the past year of elementary school through the second year of high school, binge eating, purging (self-induced vomiting), compensatory exercise, and fasting behavior were assessed by self-report. Over the 5-year period, rates of binge eating and purging increased but rates of compensatory exercise and fasting decreased. Girls and boys did not differ in their rates of engagement in any of the behaviors. Within time, the behaviors covaried modestly. Health-care professionals are advised to assess each behavior individually, rather than base interventions on the presence or absence of a diagnosable eating disorder. Gender should not be a basis for assessing for the presence of any of these behaviors.

Longitudinal follow-up of a comprehensive operationalization of eating disorder recovery: Concurrent and predictive validity

OBJECTIVE

We aimed to replicate the concurrent validity of a comprehensive definition of eating disorder recovery (physical, behavioral, and cognitive indices) in a sample followed up 7-8 years from baseline, and to examine, for the first time with this comprehensive definition, predictive validity.

METHOD

Participants were 66 women with a history of an eating disorder and 31 age-matched controls who completed an online survey and phone interview.

RESULTS

In general, women who were fully recovered were statistically indistinguishable from controls and had significantly less eating disorder attitudes and behaviors than the partially recovered and eating disorder groups. Being fully recovered at baseline was a robust predictor of stability: of those fully recovered at baseline, 80% remained fully recovered at follow-up. One-third of those with an eating disorder and one-half of those in partial recovery at baseline attained full recovery at follow-up.

DISCUSSION

These findings support the current operationalization of eating disorder recovery, encompassing physical, behavioral, and cognitive indices, as valid and highlight that full recovery is not only possible but predicts full recovery years later. Future research should examine this operationalization in diverse samples and study trajectories of recovery to identify predictors.

Disordered eating behaviors and attitudes and their correlates among a community sample of older women

This study provided a descriptive report of disordered eating behaviors and attitudes among older women and evaluated correlates (maladaptive perfectionism, appearance-related criticism). Participants were 97 women, ages 65-90, who completed questionnaires. Per the Eating Attitudes Test - 26, approximately 6% of participants met clinical cut-offs for a likely eating disorder. Maladaptive perfectionism was significantly correlated with an array of disordered eating attitudes as well as bulimic symptoms, but appearance-related criticism from significant others was not significantly correlated with disordered eating behaviors or attitudes. Results suggest that disordered eating behaviors and attitudes exist among older women with both similarities and differences in correlates compared to young women.

Associations between eating expectancies and Eating disorder symptoms in men and women

Eating expectancies, or learned expectations that an individual has about eating, prospectively predict eating disorder (ED) symptoms. Most studies examining eating expectancies have focused on one or two eating expectancies and their relation with bulimic symptoms. In addition, these studies have been conducted mostly in women. Thus, it is unclear whether: 1) associations between eating expectancies and ED symptoms vary between men and women, and 2) extend to ED symptoms other than bulimic symptoms. The current study (N = 197 undergraduate men and 246 undergraduate women) investigated sex variance in a model of eating expectancies and ED symptoms, including factors associated with ED symptoms (i.e., negative urgency, negative affect, alcohol use, drug use, and body mass index). Sex variance was tested using path analysis in a model including eating expectancies and associated factors, with excessive exercise, negative attitudes toward obesity, restricting, cognitive restraint, binge eating, purging, muscle building, and body dissatisfaction as dependent variables. Unconstrained (i.e., unconstrained paths across men and women) and constrained (i.e., constraining paths across men and women) models were tested. The unconstrained and constrained models differed significantly, indicating that the models varied by sex. For both sexes, eating expectancies were uniquely associated with ED symptoms. For men, Eating Manages Negative Affect was significantly associated with the most ED symptoms. In contrast, for women, Eating Leads to Feeling Out of Control was associated with the most ED symptoms. Previous findings regarding eating expectancies and ED symptoms in women may not generalize to men. Intervening on eating expectancies in a sex-specific way may help reduce specific ED symptoms.

Exercise Caution: Questions to Ask Adolescents Who May Exercise Too Hard

When the primary goal of exercise is to compensate for food intake and to alter body shape and weight, it is considered compulsive and may be harmful. Compulsive exercise (CE) is important in the pathogenesis of eating disorders (EDs). Many healthy adolescents engage in CE too, and this may indicate a risk for EDs. Our aim was to learn more about ED risk factors tied to CE and to try to isolate questions to ask in order to probe for high ED risk in adolescents engaging in CE. Using two well-established instruments (the Structural Analysis of Social Behavior and the Eating Disorders Examination Questionnaire), we studied associations between ED variables and CE in healthy adolescent boys and girls. We examined gender-specific items to generate the best possible fit for each gender. Individuals with CE displayed significantly greater ED pathology and more self-criticism, and this pattern was stronger in girls than in boys. Risk factors for ED among individuals with CE differed slightly for boys and girls. We put forward a set of gender-specific questions that may be helpful when probing for ED risk among adolescents engaging in CE.