Psychometric Properties of the Commitment to Exercise Scale in Inpatients With Anorexia Nervosa and Bulimia Nervosa.

IF 3.2 2区心理学 Q1 PSYCHIATRY

European Eating Disorders Review Pub Date : 2026-07-01 Epub Date: 2026-03-12 DOI:10.1002/erv.70099

Fiona M Fabry, Sandra Schlegl, Nina Dittmer, Ulrich Voderholzer, David R Kolar, Adrian Meule

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引用次数: 0

Abstract

Objective: Compulsive exercise is a common behaviour among persons with eating disorders, particularly in those with anorexia nervosa (AN) and bulimia nervosa (BN). In the current study, we examined psychometric properties of a German version of the eight-item Commitment to Exercise Scale (CES) with a four-point scale response format.

Method: Data of N = 2424 persons with AN and BN who completed the CES among other measures as part of the routine diagnostic assessment at admission to and discharge from inpatient treatment were analysed based on a preregistered protocol (https://doi.org/10.17605/OSF.IO/Z2RYW).

Results: The CES had high internal consistency and a one-factor structure with measurement invariance across age and diagnostic groups. Large correlations with other measures of compulsive exercise supported convergent validity and small-to-moderate correlations with other measures supported divergent validity. Scores on the CES were sensitive to change as they moderately decreased during inpatient treatment, with changes in compulsive exercise being larger in males and persons with AN that in females and persons with BN.

Conclusions: The CES has sound psychometric properties in persons with AN and BN. Given its brevity, it may be favoured over lengthier instruments for assessing compulsive exercise in research and clinical practice.

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神经性厌食症和神经性贪食症住院患者运动承诺量表的心理测量特征。

目的：强迫性运动是饮食失调患者的常见行为，特别是神经性厌食症（AN）和神经性贪食症（BN）患者。在当前的研究中，我们以四分制的回答格式检验了德国版的八项运动承诺量表（CES）的心理测量特性。方法：N = 2424例AN和BN患者的数据，这些患者在入院和出院时完成了作为常规诊断评估一部分的CES和其他措施，根据预登记方案（https://doi.org/10.17605/OSF.IO/Z2RYW）.Results)进行分析：CES具有高内部一致性和单因素结构，在年龄和诊断组之间具有测量不变性。与其他强迫性运动测量的大相关性支持收敛效度，与其他测量的小到中等相关性支持发散效度。在住院治疗期间，CES的得分对变化很敏感，因为它们适度下降，男性和AN患者的强迫运动变化大于女性和BN患者。结论：在AN和BN患者中，CES具有良好的心理测量特性。考虑到它的简洁，它可能比在研究和临床实践中评估强迫性运动的冗长工具更受青睐。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Eating Disorders Review PSYCHOLOGY, CLINICAL-

CiteScore

8.90

自引率

7.50%

发文量

期刊介绍： European Eating Disorders Review publishes authoritative and accessible articles, from all over the world, which review or report original research that has implications for the treatment and care of people with eating disorders, and articles which report innovations and experience in the clinical management of eating disorders. The journal focuses on implications for best practice in diagnosis and treatment. The journal also provides a forum for discussion of the causes and prevention of eating disorders, and related health policy. The aims of the journal are to offer a channel of communication between researchers, practitioners, administrators and policymakers who need to report and understand developments in the field of eating disorders.