Key result
Pre-meal heart rate variability was positively associated with perceived loss-of-control eating during a laboratory meal (p=0.02-0.04), driven by youth with recent loss-of-control eating.
Why the study?
Data are limited on whether pre-meal heart rate and heart rate variability are associated with greater loss-of-control eating in a laboratory setting among youth.
Are pre-meal heart rate and heart rate variability associated with perceived loss-of-control eating and energy intake during a laboratory meal in youth?
Cross-Sectional (n=209)
Are pre-meal heart rate and heart rate variability associated with perceived loss-of-control eating and energy intake during a laboratory meal in youth?
Answers are grounded in this paper and cite their sources.
In youth with a history of loss-of-control eating, higher pre-meal heart rate variability is associated with greater perceived loss-of-control eating during a laboratory meal.
Among youth, greater heart rate (HR) and lesser HR variability (HRV) are precursors to loss-of-control (LOC) eating episodes in the natural environment. However, there are limited data examining whether pre-meal HR and HRV are associated with greater LOC-eating in the laboratory setting. We therefore examined temporal relationships between pre-meal HR, frequency- and time-based metrics of pre-meal HRV, perceived LOC-eating, and energy intake during a meal designed to simulate a LOC-eating episode. Among 209 participants (54.5% female, 12.58 ± 2.72 years, 0.52 ± 1.02 BMIz), 19 reported LOC-eating in the prior month. Perceived LOC-eating during the laboratory meal was not significantly linked to pre-meal HR (p = 0.37), but was positively related to pre-meal HRV (ps = 0.02–0.04). This finding was driven by youth with recent LOC-eating, as these associations were not significant when analyses were run only among participants without recent reported LOC-eating (p = 0.15–0.99). Pre-meal HR and HRV were not significantly related to total energy intake (ps = 0.27–0.81). Additional research is required to determine whether early-stage pediatric LOC-eating is preceded by a healthy pre-meal stress response. Longitudinal studies could help clarify whether this pattern becomes less functional over time among youth who develop recurrent LOC-eating episodes.
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Parker et al. (2022) conducted a cross-sectional in Loss-of-control eating (n=209). Pre-meal heart rate and heart rate variability was evaluated on Perceived loss-of-control eating during the laboratory meal (p=0.02-0.04). Pre-meal heart rate variability was positively associated with perceived loss-of-control eating during a laboratory meal (p=0.02-0.04), driven by youth with recent loss-of-control eating.
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