Full metadata
Title
Sleep-related mediators of the physical activity and sedentary behavior-cardiometabolic biomarker relationship in middle age adults
Description
Physical activity, sedentary behaviors, and sleep are often associated with cardiometabolic biomarkers commonly found in metabolic syndrome. These relationships are well studied, and yet there are still questions on how each activity may affect cardiometabolic biomarkers. The objective of this study was to examine data from the BeWell24 studies to evaluate the relationship between objectively measured physical activity and sedentary behaviors and cardiometabolic biomarkers in middle age adults, while also determining if sleep quality and duration mediates this relationship. A group of inactive participants (N = 29, age = 52.1 ± 8.1 years, 38% female) with increased risk for cardiometabolic disease were recruited to participate in BeWell24, a trial testing the impact of a lifestyle-based, multicomponent smartphone application targeting sleep, sedentary, and more active behaviors. During baseline, interim (4 weeks), and posttest visits (8 weeks), biomarker measurements were collected for weight (kg), waist circumference (cm), glucose (mg/dl), insulin (uU/ml), lipids (mg/dl), diastolic and systolic blood pressures (mm Hg), and C reactive protein (mg/L). Participants wore validated wrist and thigh sensors for one week intervals at each time point to measure sedentary behavior, physical activity, and sleep outcomes. Long bouts of sitting time (>30 min) significantly affected triglycerides (beta = .15 (±.07), p<.03); however, no significant mediation effects for sleep quality or duration were present. No other direct effects were observed between physical activity measurements and cardiometabolic biomarkers. The findings of this study suggest that reductions in long bouts of sitting time may support reductions in triglycerides, yet these effects were not mediated by sleep-related improvements.
Date Created
2017
Contributors
- Lanich, Boyd (Author)
- Buman, Matthew (Thesis advisor)
- Ainsworth, Barbara (Committee member)
- Huberty, Jennifer (Committee member)
- Arizona State University (Publisher)
Topical Subject
Resource Type
Extent
vi, 60 pages
Language
Copyright Statement
In Copyright
Primary Member of
Peer-reviewed
No
Open Access
No
Handle
https://hdl.handle.net/2286/R.I.44098
Statement of Responsibility
by Boyd Lanich
Description Source
Retrieved on March 7, 2018
Level of coding
full
Note
Partial requirement for: M.S., Arizona State University, 2017
Note type
thesis
Includes bibliographical references (pages 53-60)
Note type
bibliography
Field of study: Public health
System Created
- 2017-06-01 01:36:22
System Modified
- 2021-08-26 09:47:01
- 2 years 8 months ago
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