ORCID Profile
0000-0002-3805-0180
Current Organisation
University of Nottingham
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Publisher: MDPI AG
Date: 03-08-2023
DOI: 10.3390/BS13080651
Abstract: Anorexia nervosa (AN) is a mental health disorder that has serious physical, emotional and social consequences. Whilst cognitive behavioural therapy for AN (CBT-AN) has demonstrated efficacy, there remains a global need to improve AN treatment. Compulsive exercise activity therapy (LEAP) is an active therapy consisting of the addition to CBT-AN of eight specific sessions that focus on exercise and motivation for behavioural change. This paper presents a secondary analysis of 74 female participants in a randomised control trial of LEAP plus CBT-AN versus CBT-AN alone. The main aim of this study was to explore putative predictors and to estimate the magnitude of changes due to LEAP for specific outcome measures. Participants (LEAP: n = 36 CBT-AN: n = 38) were assessed at three successive surveys: baseline, end of therapy, and 6 months post-therapy. The overall effect sizes for changes between baseline to end of therapy and baseline to 6-month follow-up assessment showed large effect sizes (Cohen’s d = 0.80) for mental-health-related quality of life (MHRQoL), weight concern, dietary restraint, eating concern, AN stage change, and psychological distress (all p 0.05). The results also indicated that several pre-treatment characteristics, including body mass index (BMI), level of eating disorder (ED) symptoms, and MHRQoL are important for identifying whether a treatment is likely to be effective. Future treatment programs should aim to optimise early improvements in BMI, ED symptoms, and MHRQoL.
Publisher: Wiley
Date: 03-10-2017
DOI: 10.1002/EAT.22633
Abstract: Compulsive exercise is a prominent feature for the majority of patients with Anorexia Nervosa (AN), but there is a dearth of research evaluating assessment instruments. This study assessed the concurrent validity of the exercise items of the Eating Disorder Examination (EDE) and Eating Disorder Examination-Questionnaire (EDE-Q), with the Compulsive Exercise Test (CET) and other self-report exercise measures in patients with AN. We also aimed to perform validation of the CET in an adult clinical s le. The s le consisted of 78 adults with AN, recruited for the randomized controlled trial "Taking a LEAP forward in the treatment of anorexia nervosa." At baseline, participants completed the EDE, EDE-Q, CET, Reasons for Exercise Inventory (REI), Commitment to Exercise Scale (CES) and Exercise Beliefs Questionnaire (EBQ). Correlational and regression analyses were performed. EDE exercise days and exercise time per day were positively correlated with each other and with all CET subscales (except Lack of exercise enjoyment), CES mean, EBQ total and REI total. Exercise time per day was associated with a higher EDE global score. The CET demonstrated good concurrent validity with the CES, the REI and the EBQ. Of the self-reports, the CET explained the greatest variance in eating disorder psychopathology and demonstrated good to excellent reliability in this s le. The EDE and EDE-Q demonstrated good concurrent validity with the CET. Further research is required to evaluate the CET's factor structure in a large clinical s le. However, the CET has demonstrated strong clinical utility in adult patients with AN. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017 50:533-541).
Publisher: Informa UK Limited
Date: 08-05-2014
Publisher: Springer Science and Business Media LLC
Date: 23-08-2019
Publisher: Wiley
Date: 26-07-2018
DOI: 10.1002/EAT.22920
Abstract: To compare the efficacy of the compuLsive Exercise Activity theraPy (LEAP) programme integrated with manualized cognitive behavioral therapy for anorexia nervosa (CBT-AN) compared to CBT-AN alone. Seventy-eight adults were randomized to CBT-AN, delivered with or without eight embedded sessions of LEAP, for a total of 34 in idual outpatient sessions. Participants were assessed at baseline, the end of the first phase of CBT-AN (which included LEAP), mid-therapy, end of therapy, and at 3 and 6 months follow-up. Linear mixed effects modelling was used for comparing trajectories over time by group in primary outcomes of pathological exercise cognitions and secondary outcomes of exercise frequency, BMI, eating disorder (ED) symptoms, AN stage of change, anxiety/depression, and health related quality of life. There were significant improvements over time in all outcomes. There were no significant differences between treatment groups in primary outcome measures. Fidelity and end-of-treatment participant satisfaction were satisfactory across both conditions. CBT-AN and LEAP added to CBT-AN resulted in improved attitudes and beliefs toward exercise and general improvements in BMI and ED psychopathology in people with AN.
Publisher: Informa UK Limited
Date: 23-01-2023
Publisher: Springer Science and Business Media LLC
Date: 05-02-2018
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Jon Arcelus.