Pathological motivations for exercise and eating disorder specific health-related quality of life

Maximal Resistance Training in the Treatment of Anorexia Nervosa - A Case Report Series

Objective

Anorexia Nervosa (AN) has one of the highest mortality rates of all mental health disorders, low recovery rate and is associated with widespread endocrine dysfunction. Resistance training (RT) has been consistently shown to provide beneficial effects on health outcomes that are often negatively affected by AN, however participation in exercise is controversial for individuals with AN. The objective of this study was to assess the effects of maximal RT as an add-on to standard of care in patients with AN.

Methods

Originally, a controlled clinical trial was planned but due to COVID-19 pandemic, the study was prematurely ended and reported as a case series design. Three female inpatients with AN (Age 18-29 years, body mass index (BMI) 14.5-16.3 kg/m2, illness duration 1-7 years) underwent a supervised 6-week RT intervention as an add-on to standard of care. Primary outcome was muscular strength, as measured by a 1-repetition maximum. Secondary outcomes included BMI, eating disorder psychopathology and maladaptive exercise tendencies.

Results

No adverse events were reported. All three participants improved lower body muscle strength, ranging from 32% to 134% in the leg press. Changes of 4% to 134% in the bench press and -3% to 38% in the pulldown were also observed.

Conclusions

RT improved muscular strength in the participants. RT as part of standard of care may also provide additional benefits for individuals with AN, although further research is required to determine which subtype of patients would benefit from the addition of RT to their treatment protocol.

Assessment and treatment of compulsive exercise in anorexia nervosa - A combined investigation of Compulsive Exercise Activity Therapy (LEAP) and Compulsive Exercise Test subscales

INTRODUCTION

Compulsive exercise is a transdiagnostic feature of eating disorders which adversely affects aspects of recovery, such as length of hospitalisation, risk of a chronic outcome, and risk of relapse. CompuLsive Exercise Activity TheraPy (LEAP) aims to reduce compulsive exercise through a cognitive behavioural approach. This study aims to investigate the effect of LEAP on compulsive exercise behaviour using subscales of the Compulsive Exercise Test (CET), a measure of exercise in individuals with eating disorders. Predictive validity of the CET's subscales and its ability to predict eating psychopathology are investigated.

METHOD

This study used data from a randomized controlled trial of LEAP (1). Linear mixed modelling was used to investigate the effect of LEAP on compulsive exercise behaviour, and the predictive ability of CET subscales on various outcomes. The CET was compared to other exercise measures to assess its superiority in predicting eating psychopathology.

RESULTS

LEAP was superior in reducing the scores of the CET's Avoidance and Rule Driven Behaviour and Exercise Rigidity subscales. All subscales made a contribution to the respective models. The CET was superior to other measures in predicting eating pathology.

CONCLUSION

The results lend credibility to LEAP's ability to reduce core parts of compulsive exercise. The CET has been found to target important aspects of compulsive exercise behaviour, and has was superior to other exercise measures in predicting eating psychopathology.

The State Urge to be Physically Active-Questionnaire (SUPA-Q): Development and validation of a state measure of activity urges in patients with eating disorders

OBJECTIVE

Many people, including patients with eating disorders (EDs), experience an increased urge for physical activity. "Trait"-like activity in patients with EDs is assessed by existing questionnaires, but there are few clinically validated assessments of a "state" urge to be physically active. Here, we developed and validated the State Urge to be Physically Active-Questionnaire (SUPA-Q).

METHODS

After developing and piloting the items, N = 126 patients with EDs (mostly anorexia nervosa and bulimia nervosa) took part in our mixed-longitudinal validation study with one primary assessment for all patients and a secondary assessment for a subsample of patients. Cronbach's α and split-half-methods served as measures of consistency and reliability. Correlations with other questionnaires were used to determine convergent and divergent validity, and confirmatory factor analysis was used for investigating factorial validity. We used paired-samples t-tests for repeated assessments to investigate change sensitivity.

RESULTS

We found the SUPA-Q to be highly consistent, and reliable and to demonstrate convergent, divergent, and factorial validity. The comparison of SUPA-Q scores from repeated assessments within a subsample of patients demonstrated the questionnaire's change sensitivity, Cohen's d = 0.48. Moreover, an increase in SUPA-Q scores was associated with a less positive mood, more anxiety, more body dissatisfaction, more tenseness, less feelings of control, and more stress.

DISCUSSION

The newly developed SUPA-Q may help to accentuate the necessity to evaluate and address the acute urge to engage in physical activity in patients with EDs in clinical practice and ultimately support tailoring treatments to patients' unique symptom patterns. The questionnaire is available at https://doi.org/10.17605/OSF.IO/G2YBC.

Measuring cognitions during exercise: Associations between thoughts and eating disorder behaviors over a 3-week ecological momentary assessment study

OBJECTIVE

Previous work has outlined cognitive beliefs about exercise in general, but very little is known about momentary cognitions while engaging in pathological exercise. The primary aim of this study was to explore thought content during exercise and to test whether these thoughts predicted later engagement in eating disorder behaviors. We also tested associations between thoughts and specific exercise activity.

METHOD

We monitored 31 women with clinically significant eating psychopathology for 3 weeks via ecological momentary assessment as they reported on their exercise and eating disorder behaviors, and thoughts about shape, weight, or calories during exercise. Thoughts were self-reported upon cessation of each exercise session.

RESULTS

Thinking about weight loss during exercise predicted later engagement in body-checking behaviors. Weight-bearing exercise was associated with a decreased likelihood of thinking about calories but an increased likelihood of thinking about shape during exercise.

DISCUSSION

These findings show that shape and weight thoughts are present during exercise and that their influence on eating disorder behaviors may exist on a much briefer time scale (i.e., within a day) than previous studies show. Clinically, future studies may seek to test interventions aimed at changing or restructuring cognitions during exercise to help shape adaptive exercise behavior during and after treatment.

PUBLIC SIGNIFICANCE

This is the first study measuring thoughts during pathological exercise in real-time among those with eating disorder psychopathology. The results show that thinking about weight loss during exercise might increase the likelihood of engaging in body-checking behaviors. Findings will inform the development of treatment approaches to help those in recovery from eating disorders re-engage with exercise.

The Impact of Anorexia Nervosa and the Basis for Non-Pharmacological Interventions

Anorexia nervosa is a psychiatric disorder with an unknown etiology that is characterized by an individual's preoccupation with their weight and body structure while denying the severity of their low body weight. Due to the fact that anorexia nervosa is multifaceted and may indicate the coexistence of genetic, social, hormonal, and psychiatric disorders, a description of non-pharmacological interventions can be used to ameliorate or reduce the symptoms of this condition. Consequently, the purpose of the present narrative review is to describe the profile's context in the anorexic person as well as the support they would require from their family and environment. In addition, it is aimed at examining preventative and non-pharmacological interventions, such as nutritional interventions, physical activity interventions, psychological interventions, psychosocial interventions, and physical therapy interventions. To reach the narrative review aims, a critical review was conducted utilizing both primary sources, such as scientific publications, and secondary sources, such as bibliographic indexes, web pages, and databases. Nutritional interventions include nutritional education and an individualized treatment for each patient, physical activity interventions include allowing patients to perform controlled physical activity, psychological interventions include family therapy and evaluation of the existence of other psychological disorders, psychosocial interventions include management of the relationship between the patient and social media and physical therapy interventions include relaxation massages and exercises to relieve pain. All these non-pharmacological interventions need to be individualized based on each patient's needs.

Compulsive exercise in eating disorders: Validation of the Italian scale and evaluation of its relationships with body image concerns and quality of life

BACKGROUND

Compulsive exercise (CE) has been proposed as one of the maladaptive elements that might concur to developing and maintaining an eating disorder (ED), even if no conclusive consensus is yet available. This study evaluates the psychometric properties of the Compulsive Exercise Test (CET), the questionnaire most frequently discussed in the literature. Our second aim is to evaluate the relationships between CE, quality of life, and different body concerns in a group of individuals.

METHODS

Two different studies are performed. In the first study, we evaluate the psychometric properties of the Italian CET with a sample of 272 individuals (157 with different diagnoses of ED). In the second study, a group of 75 ED patients is compared to 68 of their peers looking for specific differences and relationships between CE, quality of life, and body concerns.

RESULTS

The CET shows optimal psychometric proprieties, and a five-factors structure. CE is linked to more severe specific psychopathology in ED patients, including increased thoughts of restraint and concerns about weight and shape. Moreover, weight phobia and quality of life are predictors of CE in patients.

CONCLUSION

The specific role of CE is discussed according to its connections with a core psychopathological element like weight phobia. Specific profiles of CE emerged for each clinical subgroup, and they corroborate the presence of different cognitive/physical approach to exercise. The CE showed to be a dysfunctional element with a disruptive role in patients' quality of life. Future directions and possible applications of the CET are also discussed.

Physical Therapy Interventions in Patients with Anorexia Nervosa: A Systematic Review

OBJECTIVE

Assess the effectiveness of physical therapy, including supervised physical exercise for body mass index (BMI) restoration; improving muscle strength and the psychological, behavioural, cognitive symptoms and quality of life in patients with anorexia nervosa (AN).

METHODS

A Systematic Review (SR) was conducted in the following scientific databases: Medline, PubMed, PEDro, PsychInfo, Cochrane Library plus, Nursing and Allied Health database, Scopus and Web of Science databases, from inception until November 2021. An assessment of the risk of bias and the certainty of evidence across studies was conducted. Articles were eligible if they followed randomized and non-randomized control trial designs with treatments based on physical therapy or exercise or physical activity in AN patients.

RESULTS

496 records were screened, and after eligibility assessment, 6 studies from 8 articles were finally analysed. The studies, involving 176 AN patient (85.02% of patients), reported improvements in muscle strength, eating behaviour, eating attitude, mood and quality of life. Three studies included nutritional co-interventions and four studies included psychological therapy. None of the studies reported adverse effects.

CONCLUSIONS

In two of the RCTs included in this SR, strength training and high intensity resistance improved the muscle strength of patients with AN. In addition, in two RCTs, improvements were observed in patients' attitudes towards their bodies after basic body awareness therapy or after full body massage and instruction to relax. In addition, quality of life improved in two studies, with stretching, isometrics, endurance cardiovascular and muscular exercising.

"Eat clean, train mean, get lean": Body image and health behaviours of women who engage with fitspiration and clean eating imagery on Instagram

The present study examined the relationship between posting or viewing fitspiration and clean eating imagery in relation to body image, disordered eating, and compulsive exercise among women. Participants (269 women aged 18-30 years) who posted and/or viewed fitspiration, clean eating or travel imagery on Instagram completed an online cross-sectional questionnaire. Results showed engaging with fitspiration and clean eating material (either posting or viewing) was significantly positively associated with increased levels of compulsive exercise and athletic-ideal internalization. However, only viewing (not posting) fitspiration and clean eating content was significantly related to thin-ideal internalization and disordered eating symptomatology. Athletic-ideal internalization mediated the relationships between posting fitspiration/clean eating and disordered eating symptomatology and compulsive exercise. Both thin-ideal internalization and athletic-ideal internalization mediated the relationship between viewing fitspiration/clean eating material and disordered eating and compulsive exercise. Overall, the findings suggest that viewing fitspiration and clean eating content on Instagram is negatively associated with thin-ideal internalization and disordered eating symptomatology, however the same relationships do not exist for people who frequently post these types of material. The mediational pathways provide a nuanced understanding of how engaging with fitspiration and clean eating material on social media influences female users' body image and health behaviour.

Physical Fitness-Not Physical Activity Levels-Influence Quality of Life in Anorexia Nervosa

Background: Incorporating physical activity (PA) has been a challenge for health care professionals working with anorexia nervosa (AN) patients. This has contributed to partial physical fitness (PFit) recovery that persists after weight restoration. Objective: This cross-sectional study aimed to examine the relationships between PA, sedentary behaviors, PFit, and quality of life (QoL) in a group of adolescents after hospitalization. Methods: QoL, PA, and sedentary behaviors were measured using the Health-Questionnaire Short-Form 36 (SF-36) and accelerometers, while PFit was assessed through cardiorespiratory fitness, body composition (anthropometry), and strength (six repetition maximum) tests in a total of 63 patients. Results: Light-PA (LPA), moderate-PA (MPA), moderate-to-vigorous-PA (MVPA), and relative sedentary time (%ST) did not meet the recommendations (p < 0.001). Only 22% of the patients met MVPA criteria, and ~82% exceeded %ST. SF-36 scores were lower than normative values except the physical component scale. Absolute cardiorespiratory fitness was reduced (p < 0.001) in 84% of the patients, and was positively associated to body weight, body mass index (BMI), circumferences, and muscle areas. Additional positive significant relationships were found between QoL, muscular strength, and body composition, and negative associations between vigorous-to-very vigorous PA and BMI, skinfolds, and percent body fat. Regression analyses revealed lower body strength as an explanatory factor for improved QoL (OR 1.03, 95%CI 1.00−1.07). Conclusions: PFit and QoL scores are poor after hospitalization. LPA, MPA, and MVPA do not meet recommendations. PFit management—with emphasis on improving muscular fitness—may be a valuable strategy for QoL improvement in AN after hospitalization.

What role can accredited exercise physiologists play in the treatment of eating disorders? A descriptive study

Including exercise alongside other therapeutic approaches may help to address dysfunctional exercise use and improve eating disorder treatment outcomes. However, traditional treatment teams often lack the expertise needed to safely prescribe exercise. The aims of this study were to explore the perceptions and experiences of Accredited Exercise Physiologists (AEPs) relating to working with clients diagnosed with eating disorders to identify the role they play in the treatment of eating disorders and identify future training needs. Individual semi-structured telephone interviews were conducted with 12 (n = 9 females) AEPs working in the eating disorders field. Thematic analysis was conducted to extract major themes from the interview transcripts. Five major themes were identified: (1) The role of AEPs in the treatment of individuals with eating disorders is comprehensive; (2) Treatment is more effective when all components are addressed; (3) The absence of therapeutic exercise within standard treatment protocols reflects limitations of traditional scope of practice and knowledge about the role of AEPs; (4) Methods of acquiring further knowledge are insufficient for those in current practice; and (5) Accredited comprehensive training is currently unavailable but needed. This qualitative study showed that AEPs believe they can play a major role in the treatment of eating disorders and that treatment outcomes for individuals are likely to be greatly enhanced when dysfunctional exercise is addressed. Multidisciplinary training is needed.

Relationship between physical activity intensities and drunkorexia severity among first-year college students

Investigate the relationship between intensities of physical activity and severity of drunkorexia behaviors. Participants: First-year college students living in residence halls (n = 127) completed an online survey comprising drinking, drunkorexia, and physical activity. Methods: Multiple hierarchical linear regressions were implemented to examine if physical activity intensity correlates to drunkorexia severity. Results: Vigorous physical activity was the only physical activity intensity significantly associated with severity of drunkorexia behaviors. Conclusions: First-year college students' duration of vigorous physical activity in relation to severity of drunkorexia behaviors may vary contingently on the motivation for vigorous physical activity. Practitioners need to consider physical activity can be a co-occurring risk behavior in combination with alcohol misuse.

Using Self-Determination Theory to Define Pathological Exercise

Pathological exercise behavior is pervasive in eating disorder psychopathology, yet minimal treatment guidance exists for extinguishing it as little is known about how to differentiate pathological from healthy exercise. The purpose of this study was to characterize pathological exercise in terms of motivation to increase the specificity with which both pathological and healthy exercise is described and to inform treatment interventions. Latent profile analysis characterized homogenous groups based on exercise motivation in two samples: college women (n = 200) and women with eating psychopathology (n = 211). These profiles were compared on levels of eating and general psychopathology and emotion dysregulation. Three profiles emerged describing sedentary, pathological exercise, and athlete groups in the first sample, and five profiles describing neutral, sedentary, weight loss, athlete, and pathological exercise groups emerged in the second sample. Findings indicate that motivation style is salient in defining pathological exercise and may, therefore, be a clinically useful treatment target.

Goal orientation, motivational climate, and exercise as predictors of eating disorder risk factors among college students

Objectives: This study examined how goal orientation, motivational climate, and exercise could be used to predict college students' eating disorder symptomology. Participants: Recruited in February 2017, the participants included 275 college-aged students from a university in the southeastern United States. Methods: Using achievement goal theory as the framework to conceptualize motivations behind eating disorder behaviors, each participant filled out questionnaires related to goal mindsets, perceptions of the social climate in the university recreation center, and exercise habits. Data were analyzed using multiple regression analyses, with R coefficients being used to evaluate prediction models. Results: The results of the study suggested that goal orientation and ego-involving climate were the only significant predictors of eating disorder symptomology, accounting for 3.4% of the total variance. Conclusions: This study provided preliminary evidence of the importance of studying achievement goal theory-related variables that contribute to our understanding of eating disorder symptomology in the collegiate population.

Morbid exercise behaviour and eating disorders: A meta-analysis

BACKGROUND AND AIMS

This study examined the relationship between self-reported symptoms of morbid exercise behaviour (MEB) and eating disorders (ED) using meta-analytic techniques.

METHODS

We systematically searched MEDLINE, PsycINFO, Web of Science, SciELO and Scopus. Random effects models were used to compute pooled effect sizes estimates (r). The robustness of the summarized estimates was examined through sensitivity analyses by removing studies one at a time.

RESULTS

Sixty-six studies comprising 135 effect-sizes (N = 21,816) were included. The results revealed: (a) small-sized relationship in the case of bulimic symptoms (r = 0.19), (b) small- (r = 0.28) to medium-sized relationships (r = 0.41) in the case of body/eating concerns, and (c) medium-sized relationships in the case of overall ED symptoms (r = 0.35) and dietary restraint (r = 0.42). Larger effect sizes were observed in the case of overall ED symptoms in clinical, younger, and thinner populations, as well as when employing a continuously-scored instrument for assessing ED or the Compulsive Exercise Test for assessing MEB. Larger effect sizes were also found in female samples when the ED outcome was dietary restraint.

CONCLUSIONS

The identified gaps in the literature suggest that future research on the topic may benefit from: (a) considering a range of clinical (in terms of diagnosed ED) and non-clinical populations from diverse exercise modalities, (b) addressing a wide range of ED symptomatology, and (c) employing longitudinal designs that clarify the temporal direction of the relationship under consideration.

Health-related quality of life analysis in differentiated thyroid carcinoma patients after thyroidectomy

Although differentiated thyroid carcinoma (DTC) has a good prognosis and survival rate, long-term medication and recurrence monitoring might be needed. The factors that affect postoperative health-related quality of life (HRQoL) in patients with DTC in different regions remain unclear or conflicting. The purpose of this study was to assess the factors that influence the HRQoL of DTC patients after surgery. This study selected 174 patients with DTC who underwent thyroidectomy. Additionally, 174 participants who were matched by age, gender, and socioeconomic status were recruited from the population as the control group. Both the DTC and control population groups were invited to answer the HRQoL questionnaire SF-36. Scores on seven domains of the HRQoL including role-physical (RP), bodily pain (BP), general health (GH), vitality (VT), social functioning (SF), role-emotional (RE), and mental health (MH), were significantly lower for DTC patients than for the control population. The patients with no comorbidities had much higher scores on the 8 domains of the SF-36 than DTC patients with two or more comorbidities (all P < 0.05). Hypertension, diabetes and depression were the predictive factors of a poor Physical Component Summary (PCS) score and diabetes and depression were predictive factors of the Mental Component Summary (MCS) score at one year of follow-up (all P < 0.05). HRQoL is significantly influenced by many sociodemographic and clinical factors. Hypertension, diabetes and depression had a negative impact on HRQoL in DTC patients. More attention and targeted intervention should be given to DTC patients after surgery to improve quality of life.

Physical Activity in Eating Disorders: A Systematic Review

Abnormally high levels of physical activity have been documented throughout the literature in patients with eating disorders (ED), especially those diagnosed with anorexia nervosa (AN). Yet no clear definition, conceptualization, or treatment of the problematic use of physical activity (PPA) in ED patients exists. The aim of this review is to propose a new classification of PPA, report the prevalence, triggers, predictors, maintainers and other related factors of PPA in ED patients, in addition to proposing a comprehensive model of the development of PPA in AN. A total of 47 articles, retrieved from Medline and Web of Science, met the inclusion criteria and were included in the analysis. As a result, the new approach of PPA was divided into two groups (group 1 and group 2) according to the dimension (quantitative vs qualitative approach) of physical activity that was evaluated. The prevalence of PPA in ED was reported in 20 out of 47 studies, the comparison of PPA between ED versus controls in 21 articles, and the links between PPA and psychological factors in ED in 26 articles, including depression (16/26), anxiety (13/26), obsessive–compulsiveness (9/26), self-esteem (4/26), addictiveness (1/26), regulation and verbal expression of emotions (1/26) and anhedonia (1/26). The links between PPA and ED symptomatology, PPA and weight, body mass index (BMI) and body composition in ED, PPA and age, onset, illness duration and lifetime activity status in ED, PPA and ED treatment outcome were reported in 18, 15, 7, 5 articles, respectively. All of the factors have been systematically clustered into group 1 and group 2. Results focused more on AN rather than BN due to the limited studies on the latter. Additionally, a model for the development of PPA in AN patients was proposed, encompassing five periods evolving into three clinical stages. Thus, two very opposite components of PPA in AN were suggested: voluntarily PPA increased in AN was viewed as a conscious strategy to maximize weight loss, while involuntarily PPA increased proportionally with weight-loss, indicating that exercise might be under the control of a subconscious biological drive and involuntary cognition.

Compulsive exercise or exercise dependence? Clarifying conceptualizations of exercise in the context of eating disorder pathology

OBJECTIVE

Maladaptive exercise relates to eating disorder (ED) pathology and impairment in clinical and non-clinical populations. At present, two different conceptualizations of maladaptive exercise are often studied in relation to ED pathology: compulsive exercise and exercise dependence. Compulsive exercise functions to avoid negative affect (e.g., guilt and anxiety) associated with not exercising, whereas exercise dependence is associated with tolerance to exercise benefits and avoidance of exercise withdrawal. At present, clinicians and researchers struggle to determine the most appropriate term for describing problematic exercise in individuals with ED pathology. This study aimed to directly compare these conceptualizations of maladaptive exercise in relation to severity of ED pathology.

DESIGN

This study examined cross-sectional data.

METHOD

Undergraduate participants (N =235, 78% female) with elevated ED pathology completed the Eating Disorder Examination Questionnaire (EDE-Q), Compulsive Exercise Test (CET), and Exercise Dependence Scale (EDS). Multiple linear regression analyses evaluated associations between EDE-Q and CET and EDS scores and dominance analysis determined which qualities of exercise were uniquely associated with EDE-Q scores.

RESULTS

Results suggest that compulsive qualities of exercise, including exercise to control shape and weight and to avoid negative affect are more strongly associated with severity of ED pathology than qualities of exercise dependence.

CONCLUSIONS

Clinicians and researchers working with ED populations can benefit from prioritizing assessments that capture compulsive qualities of exercise. Additionally, these results suggest that interventions that effectively target other compulsive behaviors (e.g., exposure and response prevention) may be promising treatment options for problematic exercise in the context of EDs.

Is abstinence really the best option? Exploring the role of exercise in the treatment and management of eating disorders

Exercise prescription is suggested to help manage exercise abuse and improve overall eating disorder (ED) prognosis. This study explored emerging perceptions of ED health professionals concerning the role of exercise as a supportive treatment for EDs. Semi-structured interviews were conducted with international health professionals (n=13) with expertise in ED treatment. Verbatim transcripts were analyzed through thematic analysis. Four themes were revealed and titled 1) understanding the current state; 2) gaining perspectives; 3) barriers and benefits; 4) one size does not fit all. Within these themes, participants described the current state of exercise in ED treatment and suggested there exists a gap in research knowledge and practice. Participants also identified the implications of incorporating exercise into treatment and how an exercise protocol may be designed. Results enhance the understanding of the role of exercise in ED treatment and how it may further benefit individuals with EDs.

Who are mobile app users from healthy lifestyle websites? Analysis of patterns of app use and user characteristics

The use of online communities and websites for health information has proliferated along with the use of mobile apps for managing health behaviors such as diet and exercise. The scarce evidence available to date suggests that users of these websites and apps differ in significant ways from non-users but most data come from US- and UK-based populations. In this study, we recruited users of nutrition, weight management, and fitness-oriented websites in the Czech Republic to better understand who uses mobile apps and who does not, including user sociodemographic and psychological profiles. Respondents aged 13-39 provided information on app use through an online survey (n = 669; M age = 24.06, SD = 5.23; 84% female). Among users interested in health topics, respondents using apps for managing nutrition, weight, and fitness (n = 403, 60%) were more often female, reported more frequent smartphone use, and more expert phone skills. In logistic regression models, controlling for sociodemographics, web, and phone activity, mHealth app use was predicted by levels of excessive exercise (OR 1.346, 95% CI 1.061-1.707, p < .01). Among app users, we found differences in types of apps used by gender, age, and weight status. Controlling for sociodemographics and web and phone use, drive for thinness predicted the frequency of use of apps for healthy eating (β = 0.14, p < .05), keeping a diet (β = 0.27, p < .001), and losing weight (β = 0.33, p < .001), whereas excessive exercise predicted the use of apps for keeping a diet (β = 0.18, p < .01), losing weight (β = 0.12, p < .05), and managing sport/exercise (β = 0.28, p < .001). Sensation seeking was negatively associated with the frequency of use of apps for maintaining weight (β = - 0.13, p < .05). These data unveil the user characteristics of mHealth app users from nutrition, weight management, and fitness websites, helping inform subsequent design of mHealth apps and mobile intervention strategies.

Exercise in Eating Disorders Treatment: Systematic Review and Proposal of Guidelines

INTRODUCTION

Although exercise is an effective intervention for many psychological health issues, it has often been overlooked as a potential adjunct to eating disorder (ED) treatment. Thus, our objective was to summarize the literature by synthesizing themes identified in clinical studies and explicit guidelines or recommendations for the use or management of exercise in ED interventions into a proposed set of guidelines for the use of exercise in ED treatment.

METHODS

A literature search in exercise science, health psychology, and the ED literature was conducted. The focus was to obtain articles that reported on therapeutic effects and/or guidelines for the therapeutic use of exercise in individuals with ED.

RESULTS

Our review identified 11 core themes describing techniques that have been successful in using exercise therapeutically in ED treatment. These 11 guidelines are as follows: employ a team of relevant experts, monitor medical status, screen for exercise-related psychopathology, create a written contract of how therapeutic exercise will be used, include a psychoeducational component, focus on positive reinforcement, create a graded exercise program, begin with mild-intensity exercise, tailor the mode of exercise to the needs of the individual, include a nutritional component, and debrief after exercise sessions.

CONCLUSION

Our review identifies specific guidelines that may enhance ED treatment outcomes. It is the first to summarize divergent literature and synthesizes previous successes that may guide the use of therapeutic exercise in some, but not all ED patients. This review provides a practical set of guidelines for the clinical management and therapeutic use of exercise in ED treatment by focusing on empowering individuals with exercise as a tool for healthy living.

Now you see it, Now you don't: compulsive exercise in adolescents with an eating disorder

BACKGROUND

Compulsive exercise (CE) has been proposed as significant in the etiology, development and maintenance of eating disorders (EDs), resulting in more severe and enduring pathology. However, few studies have investigated CE longitudinally in adolescents with EDs. We aimed to test if adolescents show the same associations between CE and other clinical variables as previous research has found in adults.

METHODS

Three thousand one hundred sixteen girls and 139 boys from a clinical ED database were investigated regarding prevalence and frequency of CE and its relation to psychiatric symptoms, associated features and outcome. Denial of illness is common among adolescents and was therefore adjusted for.

RESULTS

Adjusted CE prevalence in girls was 44%, and CE was most prevalent in bulimia nervosa. As previously found in adults, those with CE scored significantly higher than non-CE on total ED severity, level of restriction and negative perfectionism. However, there were only minor differences between CE and non-CE patients on emotional distress, hyperactivity, suicidality and self-esteem. Among boys, adjusted CE prevalence was 38%, and CE boys scored significantly higher than non-CE on total ED severity. Initial CE did not influence 1-year outcome, although cessation of CE was associated with remission.

CONCLUSIONS

CE is a common clinical feature in adolescents with EDs and cessation is associated with remission. When controlling for denial of illness, CE had less detrimental impact than predicted. We recommend controlling for denial in studies on ED adolescents and further exploration of classification and treatment implications of CE.

Evaluation of the Compulsive Exercise Test (CET) in Adolescents with Eating Disorders: Factor Structure and Relation to Eating Disordered Psychopathology

OBJECTIVE

The aims of this study were to explore the factor structure of the Compulsive Exercise Test (CET) in a clinical sample of Swedish adolescents with eating disorders (ED) and to study the relationship of CET with ED cognitions, body weight and exercise frequency.

METHODS

The compulsive Exercise Test, the Eating Disorders Examination-Questionnaire, body mass index (BMI) and exercise frequency were available at assessment of 210 adolescents (age 14.4 ± 1.6 years) with ED.

RESULTS

Factor analysis generated four factors with close similarity to factors previously obtained in a community sample of adolescents samples and supported the use of the original version of CET. Exercise for weight control was strongly related to ED cognitions but less to exercise frequency and BMI. Exercise for regulation of mood was related to ED cognitions and exercise frequency but not to BMI.

DISCUSSION

In adolescents with ED, different aspects of exercise are related to ED cognitions. This needs addressing in the treatment of adolescents with ED. Copyright © 2016 John Wiley & Sons, Ltd and Eating Disorders Association.

Problematic Exercise in Anorexia Nervosa: Testing Potential Risk Factors against Different Definitions

“Hyperactivity” has a wide prevalence range of 31% to 80% in the anorexia nervosa literature that could be partly due to the plethora of definitions provided by researchers in this field. The purpose of this study was two-fold: 1) To assess the variance across prevalence rates of problematic exercise encountered in patients with anorexia nervosa, in relation to seven different definitions found in the literature. 2) To examine how core eating disorder symptoms and the dimensions of emotional profile are associated with these different definitions and the impact of these definitions on the assessment of patients’ quality of life. Exercise was evaluated in terms of duration, intensity, type and compulsion using a semi-structured questionnaire administered to 180 women suffering from severe anorexia nervosa. Seven different definitions of problematic exercise were identified in the literature: three entailing a single dimension of problematic exercise (duration, compulsion or intensity) and four combining these different dimensions. Emotional profile scores, obsessive-compulsive symptoms, eating disorder symptomatology, worries and concerns about body shape, self-esteem and quality of life were assessed using several established questionnaires. The prevalence of problematic exercise varied considerably from, 5% to 54%, depending on the number of criteria used for its definition. The type and level of eating disorder symptomatology was found to be associated with several definitions of problematic exercise. Surprisingly, a better self-reported quality of life was found among problematic exercisers compared to non-problematic exercisers in three of the definitions. The different definitions of problematic exercise explain the broad prevalence ranges and the conflicting associations generally reported in the literature between problematic exercise and eating disorder-related psychological parameters. There is an urgent need for a valid consensus on the definition of problematic exercise in anorexia nervosa. This will support the development of further research on the etiology and treatment of problematic exercise.

The influence of exercise identity and social physique anxiety on exercise dependence

BACKGROUND

Previous research has identified exercise identity and social physique anxiety as two independent factors that are associated with exercise dependence.

AIMS

The purpose of our study was to investigate the unique and interactive effect of these two known correlates of exercise dependence in a sample of 1,766 female runners.

METHODS

Regression analyses tested the main effects of exercise identity and social physique anxiety on exercise dependence. An interaction term was calculated to examine the potential moderating effect of social physique anxiety on the exercise identity and exercise dependence relationship.

RESULTS

Results indicate a main effect for exercise identity and social physique anxiety on exercise dependence; and the interaction of these factors explained exercise dependence scores beyond the independent effects. Thus, social physique anxiety acted as a moderator in the exercise identity and exercise dependence relationship.

DISCUSSION

Our results indicate that individuals who strongly identify themselves as an exerciser and also endorse a high degree of social physique anxiety may be at risk for developing exercise dependence.

CONCLUSIONS

Our study supports previous research which has examined factors that may contribute to the development of exercise dependence and also suggests a previously unknown moderating relationship for social physique anxiety on exercise dependence.

Association of symptoms of attention-deficit/hyperactivity disorder with symptoms of excessive exercising in an adult general population sample

BACKGROUND

An increasing number of studies suggest that physical activity can alleviate symptoms of ADHD in children. In adults there are currently insufficient data available on this subject. Interestingly, ADHD and forms of excessive exercising have both been shown to occur more frequently in adult athletes. The aim of the present study was to empirically investigate the association of ADHD and excessive exercising in the adult general population.

METHODS

For diagnosis of adult and childhood ADHD a large representative sample of the German general population (n = 1,615) completed a retrospective assessment of childhood ADHD and a self-report assessment of adult ADHD. Excessive exercising as well as putative mediating variables such as eating related psychopathology, depression, and anxiety were assessed using standardized self-rating instruments.

RESULTS

Individuals with childhood only ADHD had a significantly higher frequency of excessive exercising (9.0%) than individuals without ADHD (2.7%). Excessive exercising was significantly associated with childhood only ADHD compared to no ADHD with an odds ratio of 3.239 even after controlling for socio-demographic variables, BMI, eating related and general psychopathology.

CONCLUSIONS

Our data show that excessive exercising is significantly overrepresented in individuals in which ADHD symptoms in childhood have not persisted into adulthood. We thus hypothesize that a subgroup of individuals might suppress ADHD symptoms by excessive sporting activities. Although in healthy adults physical activity has been associated with immediate and long term improvements in cognitive functioning, studies empirically investigating associations between the effects of physical activity and adult ADHD are rare. Further studies are warranted to explore the potential role of physical activity in the treatment of ADHD in adults.