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

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Assessment and treatment of compulsive exercise in anorexia nervosa – A combined investigation of Compulsive Exercise Activity Therapy (LEAP) and Compulsive Exercise Test subscales
Eating Behaviors ( IF 2.936 ) Pub Date : 2023-11-13 , DOI: 10.1016/j.eatbeh.2023.101825
Astrid Harris ₁ , Haider Mannan ₂ , Phillipa Hay ₃ , Phillip Aouad ₄ , Jon Arcelus ₅ , Evelyn Attia ₆ , Ross Crosby ₇ , Sloane Madden ₈ , Caroline Meyer ₉ , Stephen Touyz ₄

Affiliation

The University of Sydney, Australia.
Translational Health Research Institute, School of Medicine, Western Sydney University.
Translational Health Research Institute, School of Medicine, Western Sydney University; Mental Health Services, SWSLHD, Campbellown, Australia.
The University of Sydney, Australia; InsideOut Institute for Eating Disorders, Faculty of Medicine and Health, University of Sydney and Sydney Local Health District.
Institute of Mental Health, University of Nottingham, Nottingham, United Kingdom.
New York State Psychiatric Institute, Columbia University Irving Medical Center, New York, USA; Weill Cornell Medical College, New York, USA.
Center for Biobehavioral Research, Sanford Research, Fargo, North Dakota, USA; Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA.
Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.
International Digital Laboratory, The University of Warwick, Coventry CV4 7AL, UK.

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.

中文翻译：

神经性厌食症强迫运动的评估和治疗——强迫运动活动疗法（LEAP）和强迫运动测试分量表的联合研究

介绍

强迫性运动是饮食失调的一个跨诊断特征，它会对康复的各个方面产生不利影响，例如住院时间、慢性结果的风险和复发的风险。强迫性运动活动疗法 (LEAP) 旨在通过认知行为方法减少强迫性运动。本研究旨在使用强迫运动测试 (CET) 的子量表（一种饮食失调患者的运动测量方法）来研究 LEAP 对强迫运动行为的影响。研究了 CET 分量表的预测有效性及其预测饮食精神病理学的能力。