TY - JOUR
T1 - Real-time assessment of heart rate variability and loss of control eating in adolescent girls
T2 - A pilot study
AU - Ranzenhofer, Lisa M.
AU - Engel, Scott G.
AU - Crosby, Ross D.
AU - Haigney, Mark
AU - Anderson, Micheline
AU - McCaffery, Jeanne M.
AU - Tanofsky-Kraff, Marian
N1 - Publisher Copyright:
© 2015 Wiley Periodicals, Inc.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Objective Studying physiologic underpinnings of loss-of-control (LOC) eating may inform its etiology and contribute to intervention efforts. We therefore examined temporal relationships between autonomic indices [heart rate (HR), heart rate variability (HRV)] and LOC-eating in the natural environment. Method For two days, adolescents (n = 17, 14.77 ± 1.55 years, BMI-Z 2.17 ± 0.48) with LOC-eating reported on LOC using an electronic device while HR and HRV were assessed continuously using Holter monitoring. Results Higher HR and lower HRV in the 30-minutes before eating were significantly associated with LOC-eating overall (p's < 0.001) and at the within-participants level (p's < 0.001), but not at the between-participants level (p's > 0.44). Examined categorically, HR was significantly higher, and HRV significantly lower, prior to high-LOC compared to low-LOC episodes (p's < 0.001). Discussion This pilot study suggests that LOC-eating may involve physiologic underpinnings. Additional research with larger samples is needed to further investigate this phenomenon.
AB - Objective Studying physiologic underpinnings of loss-of-control (LOC) eating may inform its etiology and contribute to intervention efforts. We therefore examined temporal relationships between autonomic indices [heart rate (HR), heart rate variability (HRV)] and LOC-eating in the natural environment. Method For two days, adolescents (n = 17, 14.77 ± 1.55 years, BMI-Z 2.17 ± 0.48) with LOC-eating reported on LOC using an electronic device while HR and HRV were assessed continuously using Holter monitoring. Results Higher HR and lower HRV in the 30-minutes before eating were significantly associated with LOC-eating overall (p's < 0.001) and at the within-participants level (p's < 0.001), but not at the between-participants level (p's > 0.44). Examined categorically, HR was significantly higher, and HRV significantly lower, prior to high-LOC compared to low-LOC episodes (p's < 0.001). Discussion This pilot study suggests that LOC-eating may involve physiologic underpinnings. Additional research with larger samples is needed to further investigate this phenomenon.
KW - LOC-eating
KW - adolescence
KW - heart rate
KW - heart rate variability
UR - http://www.scopus.com/inward/record.url?scp=84956735292&partnerID=8YFLogxK
U2 - 10.1002/eat.22464
DO - 10.1002/eat.22464
M3 - Article
C2 - 26401652
AN - SCOPUS:84956735292
SN - 0276-3478
VL - 49
SP - 199
EP - 203
JO - International Journal of Eating Disorders
JF - International Journal of Eating Disorders
IS - 2
ER -