title: Self-reported dieting success is associated with cardiac autonomic regulation in current dieters.
abstract: Restrained eating, eating disorders and obesity have been associated with cardiac autonomic dysregulation. The current study investigated cardiac autonomic regulation in current dieters. Female students (N=50) indicated if they were currently trying to control their weight and completed the Perceived Self-Regulatory Success in Dieting Scale (PSRS). Heart beat intervals were recorded during two 10 min relaxation periods from which parameters of vagal-cardiac control (high frequency power in normalized units, HF n.u.) and sympathovagal balance (ratio of low and high frequency power, LF/HF) were calculated. In current dieters, self-reported dieting success was positively associated with HF and negatively associated with LF/HF. These associations were independent of current body-mass and food deprivation (i.e. hours since the last meal). We conclude that vagal-cardiac control reflects self-regulatory strength, rather than nutritional status, in current dieters.
authors: Department of Psychology I, University of Würzburg, Marcusstr. 9-11, 97070 Würzburg, Germany. adrian.meule@uni-wuerzburg.de
authors: Adrian
authors: A
authors: Meule
authors: Annika
authors: A
authors: Lutz
authors: Claus
authors: C
authors: Vögele
authors: Andrea
authors: A
authors: Kübler
mesh_terms: D000293:Adolescent; D000328:Adult; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D004038:Diet, Reducing; D005247:Feeding Behavior; D005260:Female; D005508:Food Deprivation; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D062407:Meals; D012044:Regression Analysis; D057566:Self Report; D011795:Surveys and Questionnaires; D014630:Vagus Nerve / Q000502:physiology; D055815:Young Adult