@inbook{ebe79094fa8a43129cfea2ad87f9a803,
title = "Isometric Force Pillow: Using Air Pressure to Quantify Involuntary Finger Flexion in the Presence of Hypertonia",
abstract = "Survivors of central nervous system injury commonly present with spastic hypertonia. The affected muscles are hyperexcitable and can display involuntary static muscle tone and an exaggerated stretch reflex. These symptoms affect posture and disrupt activities of daily living. Symptoms are typically measured using subjective manual tests such as the Modified Ashworth Scale; however, more quantitative measures are necessary to evaluate potential treatments. The hands are one of the most common targets for intervention, but few investigators attempt to quantify symptoms of spastic hypertonia affecting the fingers. We present the isometric force pillow (IFP) to quantify involuntary grip force. This lightweight, computerized tool provides a holistic measure of finger flexion force and can be used in various orientations for clinical testing and to measure the impact of assistive devices.",
keywords = "Hypertonia, Measurement, Quantify, Spasticity, Stroke, Tool",
author = "Seim, {Caitlyn E.} and Chuzhang Han and Lowber, {Alexis J.} and Claire Brooks and Marie Payne and Lansberg, {Maarten G.} and Flavin, {Kara E.} and Dewald, {Julius P.A.} and Okamura, {Allison M.}",
note = "Funding Information: Acknowledgements This research was supported, in part, by the Stanford Wu Tsai Neurosciences Institute Neuroscience: Translate Program and the Eunice Kennedy Shriver National Institute of Child Health and Human Development of the National Institutes of Health (NIH) under Award Number F32HD100104. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.",
year = "2022",
doi = "10.1007/978-3-030-70316-5_133",
language = "English (US)",
series = "Biosystems and Biorobotics",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "835--840",
booktitle = "Biosystems and Biorobotics",
address = "Germany",
}