Journal article
Cardiac Risk and Disordered Eating: Decreased R Wave Amplitude in Women with Bulimia Nervosa and Women with Subclinical Binge/Purge Symptoms
European eating disorders review, Vol.24(6), pp.455-459
11/2016
DOI: 10.1002/erv.2463
PMID: 27511789
Abstract
The purpose of the present study was threefold. First, we examined whether women with bulimia nervosa (n = 12) and women with subthreshold binge/purge symptoms (n = 20) showed decreased mean R wave amplitude, an indicator of cardiac risk, on electrocardiograph compared to asymptomatic women (n = 20). Second, we examined whether this marker was pervasive across experimental paradigms, including before and after sympathetic challenge tasks. Third, we investigated behavioural predictors of this marker, including binge frequency and purge frequency assessed by subtype (dietary restriction, excessive exercise, self-induced vomiting, and laxative abuse). Results of a 3 (ED symptom status) × 5 (experimental condition) mixed factorial ANCOVA (covariates: body mass index, age) indicated women with bulimia nervosa and women with subclinical binge/purge symptoms demonstrated significantly reduced mean R wave amplitude compared to asymptomatic women; this effect was pervasive across experimental conditions. Multiple regression analyses showed binge and purge behaviours, most notably laxative abuse as a purge method, predicted decreased R wave amplitude across all experimental conditions. Copyright © 2016 John Wiley & Sons, Ltd and Eating Disorders Association.
Details
- Title: Subtitle
- Cardiac Risk and Disordered Eating: Decreased R Wave Amplitude in Women with Bulimia Nervosa and Women with Subclinical Binge/Purge Symptoms
- Creators
- Melinda Green - Cornell College, Department of Psychology, Mt. Vernon, IA, USA. mgreen@cornellcollege.eduJennifer Rogers - The University of Iowa, Department of Health and Human Physiology, Iowa City, IA, USAChristine Nguyen - Cornell College, Department of Psychology, Mt. Vernon, IA, USAKatherine Blasko - Cornell College, Department of Psychology, Mt. Vernon, IA, USAAmanda Martin - Cornell College, Department of Psychology, Mt. Vernon, IA, USADominique Hudson - Cornell College, Department of Psychology, Mt. Vernon, IA, USAKristen Fernandez-Kong - Cornell College, Department of Psychology, Mt. Vernon, IA, USAZauditu Kaza-Amlak - Cornell College, Department of Psychology, Mt. Vernon, IA, USABrandon Thimmesch - Cornell College, Department of Psychology, Mt. Vernon, IA, USATyler Thorne - Cornell College, Department of Psychology, Mt. Vernon, IA, USA
- Resource Type
- Journal article
- Publication Details
- European eating disorders review, Vol.24(6), pp.455-459
- Publisher
- England
- DOI
- 10.1002/erv.2463
- PMID
- 27511789
- ISSN
- 1072-4133
- eISSN
- 1099-0968
- Language
- English
- Date published
- 11/2016
- Academic Unit
- Health and Human Physiology; Athletic Training Program
- Record Identifier
- 9984002583002771
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