Vu University Ambulatory Monitoring System
Vu University Ambulatory Monitoring System - Related Videos
08:00
Ambulatory ECG Recording in Mice
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Cited by 19 •
2010
Telemetric ECG has emerged as an essential tool in evaluating animal models for cardiac arrhythmias and sudden cardiac death. Here, we present a stepwise guide to telemetric ECG recordings for application in long-term ambulatory ECG monitoring in mice.
07:32
Newton's Law of Universal Gravitation
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2023
Source: Ketron Mitchell-Wynne, PhD, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA Legend states that Isaac Newton saw an apple fall from a tree. He noticed the acceleration of the apple and deduced that there must have been a force acting upon the apple. He then surmised that if gravity can act at the top of the tree, it can also act at even larger distances. He observed the motion of the moon and the orbits of the...
10:35
Bringing the Visible Universe into Focus with Robo-AO
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Cited by 17 •
2013
Light from astronomical objects must travel through the earth's turbulent atmosphere before it can be imaged by ground-based telescopes. To enable direct imaging at maximum theoretical angular resolution, advanced techniques such as those employed by the Robo-AO adaptive-optics system must be used.
10:31
Universal Molecular Retention with 11-Fold Expansion Microscopy
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2023
Presented here is a new version of expansion microscopy (ExM), Magnify, that is modified for up to 11-fold expansion, conserving a comprehensive array of biomolecule classes, and is compatible with a broad range of tissue types. It enables the interrogation of the nanoscale configuration of biomolecules using conventional diffraction-limited microscopes.
10:39
Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
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2025
This paper outlines the protocol for qualitatively and quantitatively validating a university service-learning instrument, following the parsimony criterion to create the most robust and optimal version possible. The Delphi qualitative validation method and Robust Unweighted Least Squares Exploratory Factor Analysis, as a quantitative item optimization method, are utilized for this purpose.
FAQs
VU-AMS aligns electrocardiography, impedance cardiography, thoracic impedance, skin conductance, respiration, and movement data on a shared time course. This synchronization lets investigators examine how cardiac activity, breathing, physical activity, and sympathetic arousal change together rather than as isolated measurements. The result is a time-resolved view of physiological regulation during naturally occurring activities.
The signal combination captures different aspects of the same physiological episode. Electrocardiography and impedance cardiography contribute information about cardiac activity, thoracic impedance and respiration characterize breathing-related changes, and skin conductance reflects sympathetic arousal. Movement data adds behavioral context, helping researchers interpret whether physiological changes coincide with activity, rest, stress, or other everyday conditions.
Physiological measurements can change as people move through different activities and environments. By recording movement alongside cardiovascular, respiratory, and skin conductance signals, VU-AMS helps researchers relate autonomic changes to real-world behavior and surrounding conditions. This context can distinguish patterns associated with everyday activity from responses that may be relevant to stress or cardiovascular regulation.
A study typically uses the portable platform with surface sensors to record the selected physiological signals while participants continue everyday activities. The system collects cardiac, respiratory, skin conductance, and movement information together over time. Researchers can then examine synchronized recordings to identify changes in autonomic function, stress responses, physical activity, and cardiovascular behavior outside laboratory conditions.
VU-AMS is useful when the research question concerns physiological regulation during ordinary life rather than under controlled laboratory conditions alone. Its ambulatory recordings connect changes in cardiovascular and autonomic function with behavior and environmental circumstances. This makes the system relevant for studying stress responses, sympathetic arousal, physical activity, and cardiovascular patterns as they occur over time.
The synchronized measurements can help characterize ambulatory stress responses, autonomic regulation, and cardiovascular health. In medical research, investigators may use the recordings to examine disease-related physiological patterns or evaluate treatment effects. In psychophysiological research, linking sympathetic arousal and cardiac changes with everyday behavior provides context for understanding how physiological responses unfold beyond a laboratory setting.