The Effects of a High-Carbohydrate Versus a High-Fat Shake on Heart Rate Variability When Used to Interrupt a 38-Hour Fast

Authors

Dane Jensen, Brigham Young University - ProvoFollow
Cameron Jacobsen, Brigham Young University - Provo
Landon Deru Ph.D., Brigham Young University - Provo
Elizabeth Z. Gipson, Brigham Young University - Provo
Katelynn E. Hales, Brigham Young University - Provo
Bruce W. Bailey Ph.D., Brigham Young University, Provo, UTFollow

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Keywords

Fasting, Sleep, HRV

Abstract

(HRV) is a biological phenomenon that refers to the variations in the time intervals between heartbeats and is commonly used to assess vascular health. Heart rate variability (HRV) indicates the heart’s capacity to respond to stimuli from the autonomic nervous system. High HRV has been known to be correlated with a healthy heart and autonomic nervous system, while low HRV has been known to be correlated with adverse physiological conditions [6]. While previous research has explored the cardiovascular effects of fasting and food intake, the impact of the post-fast meal on cardiovascular health remains understudied. This study aims to investigate how the macronutrient composition of a post-fast meal affects the autonomic nervous system, as measured by HRV.

BYU ScholarsArchive Citation

Jensen, Dane; Jacobsen, Cameron; Deru, Landon Ph.D.; Gipson, Elizabeth Z.; Hales, Katelynn E.; and Bailey, Bruce W. Ph.D., "The Effects of a High-Carbohydrate Versus a High-Fat Shake on Heart Rate Variability When Used to Interrupt a 38-Hour Fast" (2025). Library/Life Sciences Undergraduate Poster Competition 2025. 9.
https://scholarsarchive.byu.edu/library_studentposters_2025/9

Document Type

Book

Publication Date

2025

Language

English

College

Life Sciences

Department

Exercise Sciences

University Standing at Time of Publication

Junior

Copyright Use Information

https://lib.byu.edu/about/copyright/