A randomised controlled trial of manualized cognitive remediation therapy in adult obesity
- Publication Type:
- Journal Article
- Citation:
- Appetite, 2018, 123 pp. 269 - 279
- Issue Date:
- 2018-04-01
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| 1-s2.0-S0195666316308443-main.pdf | Published Version | 1.42 MB |
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© 2018 Objective Research has indicated that individuals with obesity have neurocognitive deficits, especially in cognitive flexibility that may in turn impact on their weight loss and maintenance. Consequently, we examined the efficacy of a manualised face-to-face cognitive remediation therapy for obesity (CRT-O) within a randomised controlled trial, in terms of improving cognitive flexibility, reducing binge eating behaviour, improving quality of life and helping with weight loss. Methods 80 adults with obesity (body mass index >30 kg/m2), 70% binge eaters, received three weekly sessions of group Behavioural Weight Loss (BWL) and then were randomised to 8 sessions of individual CRT-O or to a no-treatment control group. Results Mixed-effects model analyses revealed that the CRT-O group had a significant improvement in their cognitive flexibility at post-treatment and 3-month follow-up compared to the control group (Cohen's d = 0.96 to 2.1). 68% of those in the CRT-O group achieved a weight loss of 5% or more at follow-up compared to only 15% of the controls (Cohen's d = 1.3). Changes in set-shifting predicted changes in weight (p <.05). Binge eating reduced in the CRT-O group compared to the control (Cohen's d = 0.80). Discussion This is the first study showing the efficacy of CRT-O for obesity. Future CRT-O studies with longer follow-ups and pairing it with longer BWL programs are needed. Trials registry (ANZCTR) 12613000537752. Date of ANZCTR registration 14 May 2013.
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