Ultra-short Heart Rate Variability is Associated with Arterial Stiffness in Young Healthy Men and Women
Location
Waters College of Health Professions (WCHP)
Session Format
Poster Presentation
Co-Presenters and Faculty Mentors or Advisors
Dr. Gregory Grosicki, Faculty Advisor
Abstract
Heart rate variability (HRV), the time-difference between heartbeats, is a marker of autonomic function. Studies examining associations between single-day HRV and arterial stiffness, a predictor of mortality, have produced mixed results. PURPOSE: To assess relationships between multi-day HRV measures and arterial stiffness in young, healthy adults. METHODS: Twenty-one males (24±5 yrs; 24±17% body fat) and 20 females (21±3 years; 34±7% body fat) recorded ultra-short HRV for 7 days. Augmentation index at 75 beats per minute (AIx75) via pulse wave analysis, and carotid-femoral pulse wave velocity (cf-PWV) via applanation tonometry were acquired as indices of arterial stiffness. Associations between average supine and standing 7-day natural logarithm of the root-mean square of successive differences (lnRMSSDavg), and their coefficients of variation (lnRMSSDcv), with AIx75 and cf-PWV were assessed. RESULTS: In men, supine lnRMSSDavg (r=-.62) and standing lnRMSSDcv (r=.55) were associated with cf-PWV (P
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Recommended Citation
Cross, Brett, "Ultra-short Heart Rate Variability is Associated with Arterial Stiffness in Young Healthy Men and Women" (2021). GS4 Student Scholars Symposium. 13.
https://digitalcommons.georgiasouthern.edu/research_symposium/2021/2021/13
Ultra-short Heart Rate Variability is Associated with Arterial Stiffness in Young Healthy Men and Women
Waters College of Health Professions (WCHP)
Heart rate variability (HRV), the time-difference between heartbeats, is a marker of autonomic function. Studies examining associations between single-day HRV and arterial stiffness, a predictor of mortality, have produced mixed results. PURPOSE: To assess relationships between multi-day HRV measures and arterial stiffness in young, healthy adults. METHODS: Twenty-one males (24±5 yrs; 24±17% body fat) and 20 females (21±3 years; 34±7% body fat) recorded ultra-short HRV for 7 days. Augmentation index at 75 beats per minute (AIx75) via pulse wave analysis, and carotid-femoral pulse wave velocity (cf-PWV) via applanation tonometry were acquired as indices of arterial stiffness. Associations between average supine and standing 7-day natural logarithm of the root-mean square of successive differences (lnRMSSDavg), and their coefficients of variation (lnRMSSDcv), with AIx75 and cf-PWV were assessed. RESULTS: In men, supine lnRMSSDavg (r=-.62) and standing lnRMSSDcv (r=.55) were associated with cf-PWV (P
