Actigraphy-Derived Sleep Metrics are Related to Metabolic but Not Vascular Health Measures in Young Adults
Location
Waters College of Health Professions (WCHP)
Session Format
Poster Presentation
Co-Presenters and Faculty Mentors or Advisors
Dr. Gregory Grosicki, Faculty Advisor
Abstract
Insufficient sleep is an emerging risk factor for cardiometabolic disease.
PURPOSE: To assess relationships between actigraphy-derived sleep metrics and measures of cardiometabolic health in young adults.
METHODS: Forty-four individuals (23±5yrs; 20 females) participated in this study. Wrist-worn actigraphy was used to characterize 7-day conventional sleep metrics including sleep efficiency, total sleep time, wake after sleep onset, and number of awakenings, and z-scores for each of these variables were summed to generate a composite sleep score (higher score=better sleep). Sleep regularity (SR), the standard deviation of sleep duration, was quantified as a novel index of sleep habits. Vascular health measures including central pressures and augmentation index at a heart rate of 75 beats per minute were quantified via pulse wave analysis, and arterial stiffness was evaluated using carotid femoral pulse wave velocity. Fasting blood glucose (FBG) was measured with a fingerstick blood draw. Relationships among sleep score and SR with vascular and metabolic health were evaluated.
RESULTS: FBG (86.8±7.3mg/dL) was related to SR (r2=0.106; P0.05). Sleep score and SR were not related (P>0.05) to measures of vascular health.
CONCLUSION: Consistency of sleep duration may be important to consider for preserving metabolic health in young adults.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Presentation Type and Release Option
Presentation (Open Access)
Recommended Citation
Culver, Meral, "Actigraphy-Derived Sleep Metrics are Related to Metabolic but Not Vascular Health Measures in Young Adults" (2021). GS4 Georgia Southern Student Scholars Symposium. 12.
https://digitalcommons.georgiasouthern.edu/research_symposium/2021/2021/12
Actigraphy-Derived Sleep Metrics are Related to Metabolic but Not Vascular Health Measures in Young Adults
Waters College of Health Professions (WCHP)
Insufficient sleep is an emerging risk factor for cardiometabolic disease.
PURPOSE: To assess relationships between actigraphy-derived sleep metrics and measures of cardiometabolic health in young adults.
METHODS: Forty-four individuals (23±5yrs; 20 females) participated in this study. Wrist-worn actigraphy was used to characterize 7-day conventional sleep metrics including sleep efficiency, total sleep time, wake after sleep onset, and number of awakenings, and z-scores for each of these variables were summed to generate a composite sleep score (higher score=better sleep). Sleep regularity (SR), the standard deviation of sleep duration, was quantified as a novel index of sleep habits. Vascular health measures including central pressures and augmentation index at a heart rate of 75 beats per minute were quantified via pulse wave analysis, and arterial stiffness was evaluated using carotid femoral pulse wave velocity. Fasting blood glucose (FBG) was measured with a fingerstick blood draw. Relationships among sleep score and SR with vascular and metabolic health were evaluated.
RESULTS: FBG (86.8±7.3mg/dL) was related to SR (r2=0.106; P0.05). Sleep score and SR were not related (P>0.05) to measures of vascular health.
CONCLUSION: Consistency of sleep duration may be important to consider for preserving metabolic health in young adults.
