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Cardiac autonomic regulation as a predictor for childhood obesity intervention success

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Title: Cardiac autonomic regulation as a predictor for childhood obesity intervention success
Authors: Taylor, MJ
Vlaev, I
Taylor, D
Kulendran, M
Gately, P
Al-Kuwari, H
Darzi, A
Ahmedna, M
Item Type: Journal Article
Abstract: Childhood obesity is a major public health concern; behavioural interventions induce weight reduction in some, but success is variable. Heart rate variability (HRV) has been associated with impulse control and extent of dieting success. This study investigated the relationship between HRV and post childhood obesity intervention weight-management success, and involved recording the frequency-domain HRV measures ratio between low frequency and high frequency power (LF/HF) and high frequency power (HF), and the time-domain measure, percentage of successive beat-to-beat intervals that differ by more than 50ms (PNN50). It was expected that greater LF/HF and lower HF would be associated with greater post-intervention weight gain, and that greater PNN50 would be associated with greater impulse control. Seventy-four participants aged 9–14 (M=10.7; s.d.: 1.1) attended a weight-management camp, where HRV was recorded. Stop signal reaction time (SSRT) was also recorded as a measure of impulse control. As expected, SSRT was positively associated with pre-intervention body mass (r=0.301, P=0.010) and negatively associated with PNN50 (β=0.29, P=0.031). Post-intervention body mass change was positively associated with LF/HF (β=0.34, P=0.037), but was not associated with HF. Lifestyle interventions may have a greater chance of effectively supporting long-term weight-management for children with lower LF/HF; assessing HRV of obese children may be helpful in informing obesity treatment decisions.
Issue Date: 21-Feb-2017
Date of Acceptance: 11-Jan-2017
URI: http://hdl.handle.net/10044/1/48697
DOI: https://dx.doi.org/10.1038/ijo.2017.25
ISSN: 0307-0565
Publisher: NATURE PUBLISHING GROUP
Start Page: 824
End Page: 827
Journal / Book Title: INTERNATIONAL JOURNAL OF OBESITY
Volume: 41
Issue: 5
Copyright Statement: © 2017 Macmillan Publishers Limited, part of Springer Nature. The final publication is available at https://dx.doi.org/10.1038/ijo.2017.25
Keywords: Science & Technology
Life Sciences & Biomedicine
Endocrinology & Metabolism
Nutrition & Dietetics
HEART-RATE-VARIABILITY
INHIBITORY CONTROL
NEUROVISCERAL INTEGRATION
IMPULSIVITY
PSYCHOPATHOLOGY
STRESS
MODEL
11 Medical And Health Sciences
13 Education
Publication Status: Published
Appears in Collections:Division of Surgery
Faculty of Medicine



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