The reinforcing effect of exercise in anorexia nervosa: Clinical correlates and relationship to outcome

Gianini, Loren; Klein, David; Call, Christine C.; Mayer, Laurel; Foltin, Richard W.; Walsh, B. Timothy; Wang, Yuanjia; Wu, Peng; Attia, Evelyn

doi:10.1080/10640266.2016.1198204

Cited by 11 publications

(7 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1), 67 studies were included in the systematic review and 66 in the meta-analysis. The decision of excluding one study from the meta-analysis (Gianini et al, 2016) was adopted in light of its specific research design (i.e., longitudinal). More specifically, given that the low number featuring this condition (i.e., K < 4) did not allow for examining study design as a potential source of heterogeneity (Fu et al, 2011).…”

Section: Selection Of Studiesmentioning

confidence: 99%

Morbid exercise behaviour and eating disorders: A meta-analysis

Alcaraz‐Ibáñez

Paterna

Sicilia

et al. 2020

Journal of Behavioral Addictions

View full text Add to dashboard Cite

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

show abstract

Section: Selection Of Studiesmentioning

confidence: 99%

Morbid exercise behaviour and eating disorders: A meta-analysis

Alcaraz‐Ibáñez

Paterna

Sicilia

et al. 2020

Journal of Behavioral Addictions

View full text Add to dashboard Cite

show abstract

“…, ) and measures of eating disorder (ED) behaviours (Gianini et al . , ; Lavender et al . , ; Rigaud, Pennacchio, Bizeul, Reveillard, & Verges, ; Zerwas et al .…”

Section: Introductionmentioning

confidence: 98%

Neuropsychological and Cognitive Correlates of Recovery in Anorexia Nervosa

Harper

Brodrick

Enkevort

et al. 2017

Euro Eating Disorders Rev

View full text Add to dashboard Cite

Objective To identify clinical or cognitive measures either predictive of illness trajectory or altered with sustained weight-recovery in adult women with anorexia nervosa. Methods Participants were recruited from prior studies of women with anorexia nervosa (AN-C) and in weight-recovery following anorexia nervosa (AN-WR). Participants completed a neuropsychological battery at baseline and clinical assessments at both baseline and follow up. Groups based on clinical outcome (continued eating disorder, AN-CC; newly in recovery, AN-CR; sustained weight-recovery, AN-WR) were compared using one-way ANOVAs with Bonferroni-corrected post hoc comparisons. Results AN-CC had poorer neuropsychological function and self-competence at baseline than AN-CR. AN-CR showed changes in depression and externalizing bias, a measure of self-related attributions. AN-WR differed from both AN-CC and AN-CR at baseline in externalizing bias, but only from AN-CC at outcome. Discussion Neuropsychological function when recently ill may be a prognostic factor, while externalizing bias may provide a clinical target for recovery.

show abstract

“…However, one study found that eating pathology was associated with less mental effort avoidance [61]. This finding corresponds with extensive laboratory evidence demonstrating that individuals with AN and Excess Goal Pursuit in AN 9 other restrictive eating pathology will engage in extreme motor effort to access disorder-relevant rewards, such as restrictive eating and exercise [62][63][64][65][66][67]. Some research has found similarly enhanced decision-making performance in AN on other facets of executive functioning, such as planning, goal persistence and attainment, and setshifting [68][69][70][71].…”

Section: Excesses In Decision-making and Goal Pursuit In Anmentioning

confidence: 59%

Beyond Description and Deficits: How Computational Psychiatry Can Enhance an Understanding of Decision-Making in Anorexia Nervosa

Haynos¹,

Widge²,

Anderson³

et al. 2021

Preprint

View full text Add to dashboard Cite

Despite decades of research, anorexia nervosa (AN) remains poorly understood and clearly effective treatments continue to be elusive. Thus, novel theoretical frameworks are needed to advance mechanistic and treatment research for this disorder. Progress in research on AN may have been slowed by systematic biases historically affecting psychiatric research. In this manuscript, we describe the influence of two such biases: 1) Descriptive bias: the tendency to define mechanisms on the basis of surface or face-valid characteristics; and 2) Deficit bias: the tendency to search for mechanisms associated with under-functioning of decision-making abilities and related circuity, and to neglect problems of over-functioning, in psychiatric disorders. The theories and methods of computational psychiatry are well-suited to overcome these biases by emphasizing the role of computational misalignments (rather than absolute deficits or excesses) between decision-making strategies and environmental demands as the key factors promoting psychiatric illnesses. Informed by this approach, we present an account of AN as a disorder of excess goal pursuit, maintained by over-engagement of executive functioning strategies and circuits conventionally considered to be positive for supporting mental health. We provide evidence that this same computational imbalance may constitute neglected phenotype presenting transdiagnostically across psychiatric disorders. We highlight how traditional psychiatric treatments could be ineffective, or even iatrogenic, for this clinical group and suggest future directions for computational models that may be well suited for identifying more precise mechanistic targets for disorders of excess goal pursuit.

show abstract

The reinforcing effect of exercise in anorexia nervosa: Clinical correlates and relationship to outcome

Cited by 11 publications

References 30 publications

Morbid exercise behaviour and eating disorders: A meta-analysis

Morbid exercise behaviour and eating disorders: A meta-analysis

Neuropsychological and Cognitive Correlates of Recovery in Anorexia Nervosa

Beyond Description and Deficits: How Computational Psychiatry Can Enhance an Understanding of Decision-Making in Anorexia Nervosa

Contact Info

Product

Resources

About