Journal article
Associations of Physical Activity and Sedentary Time with Aortic Stiffness and Autonomic Function in Early Pregnancy
Journal of applied physiology (1985), Vol.138(3), pp.774-782
03/01/2025
DOI: 10.1152/japplphysiol.00889.2024
PMCID: PMC12305502
PMID: 39951544
Abstract
Rapid cardiovascular and autonomic adaptations occur during early pregnancy to accommodate augmented cardiac output and placental circulation, with inadequate adaptation associated with hypertensive pregnancy complications. Habitual physical activity (PA) and limiting time in sedentary behaviors (SED) may improve pregnancy-related vascular and autonomic function. The objective of this study was to examine the magnitude of the predicted associations between device-measured PA and SED with cardiovascular and autonomic biomarkers including aortic stiffness, blood pressure variability (BPV) and baroreflex sensitivity (BRS) in the first trimester of pregnancy. Pregnant women (N=92, 21-44 years of age) free from cardiovascular disease were assessed between 10
-12
weeks gestation. Participants wore a thigh-mounted activPAL device for seven days to assess PA (light intensity and moderate-to-vigorous intensity) and SED. Aortic stiffness was measured by non-invasive applanation tonometry and expressed as carotid-femoral pulse wave velocity (cfPWV). Beat-to-beat blood pressure and R-R interval were synchronously recorded for 10 minutes via finger plethysmography and ECG to derive beat-to-beat BPV and spontaneous cardiovagal BRS (sequence method). In the entire group, neither PA or SED were related to cfPWV, BPV or BRS and this finding was similar in nulliparous and parous pregnant women. In stratified analyses, the association between moderate-to-vigorous-intensity PA and cfPWV differed by gestational age, such that this inverse association was only present in the 12
week of gestation (β = -0.365, P=0.015). The present study indicates that PA and SED are not associated with aortic stiffness or autonomic function in the first trimester.
Details
- Title: Subtitle
- Associations of Physical Activity and Sedentary Time with Aortic Stiffness and Autonomic Function in Early Pregnancy
- Creators
- Virginia R Nuckols - University of IowaKristen G Davis - University of IowaGary L Pierce - University of IowaBethany Barone Gibbs - West Virginia UniversityKara M Whitaker - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of applied physiology (1985), Vol.138(3), pp.774-782
- DOI
- 10.1152/japplphysiol.00889.2024
- PMID
- 39951544
- PMCID
- PMC12305502
- NLM abbreviation
- J Appl Physiol (1985)
- ISSN
- 1522-1601
- eISSN
- 1522-1601
- Publisher
- AMER PHYSIOLOGICAL SOC
- Grant note
- Russell B. Day and Florence D. Day Endowed Chair in Liberal Arts and Sciences at the University of Iowa University of Iowa Graduate College Diversity Fellowship R01-HL153095 / HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI) University of Iowa Graduate College Summer Fellowship
- Language
- English
- Electronic publication date
- 02/14/2025
- Date published
- 03/01/2025
- Academic Unit
- Epidemiology; Health, Sport, and Human Physiology ; Internal Medicine
- Record Identifier
- 9984790970902771
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