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Activity Number: 25 - Medical Devices and Diagnostics Speed Session
Type: Contributed
Date/Time: Sunday, August 8, 2021 : 1:30 PM to 3:20 PM
Sponsor: Section on Medical Devices and Diagnostics
Abstract #318970
Title: Correlating Cerebral Oxygenation and Postural Stability Using Functional Principal Component Analysis
Author(s): David Rice* and Jonathan Garber and Mamiko Noguchi and Richard Hughson and Kimihiro Noguchi and Laura K Fitzgibbon-Collins
Companies: Western Washington University and Western Washington University and University of Waterloo and Schlegel-University of Waterloo Research Institute for Aging and Department of Mathematics, Western Washington University and Schlegel-University of Waterloo Research Institute for Aging?
Keywords: Functional data; Principal component analysis ; Balance; Blood pressure; Brain

We explore the correlations between postural balance of adults and aspects of their cerebral blood flow data, viewed as functional data, using functional principal component analysis (FPCA). Specifically, we compare the functional principal component scores of relative changes of cerebral oxygenation data for younger and older adults while transitioning from supine to stand with the center-of-balance total path lengths travelled over the 60-90 second period after standing. Our regression- and cluster-based analyses indicate that the functional shape of cerebral oxygenation following a transition is correlated with postural stability.

Authors who are presenting talks have a * after their name.

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