Effects of Wrist Posture and Fingertip Force on Median Nerve Blood Flow Velocity
Joint Authors
Wilson, Katherine E.
Tat, Jimmy
Keir, Peter J.
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Purpose.
The purpose of this study was to assess nerve hypervascularization using high resolution ultrasonography to determine the effects of wrist posture and fingertip force on median nerve blood flow at the wrist in healthy participants and those experiencing carpal tunnel syndrome (CTS) symptoms.
Methods.
The median nerves of nine healthy participants and nine participants experiencing symptoms of CTS were evaluated using optimized ultrasonography in five wrist postures with and without a middle digit fingertip press (0, 6 N).
Results.
Both wrist posture and fingertip force had significant main effects on mean peak blood flow velocity.
Blood flow velocity with a neutral wrist (2.87 cm/s) was significantly lower than flexed 30° (3.37 cm/s), flexed 15° (3.27 cm/s), and extended 30° (3.29 cm/s).
Similarly, median nerve blood flow velocity was lower without force (2.81 cm/s) than with force (3.56 cm/s).
A significant difference was not found between groups.
Discussion.
Vascular changes associated with CTS may be acutely induced by nonneutral wrist postures and fingertip force.
This study represents an early evaluation of intraneural blood flow as a measure of nerve hypervascularization in response to occupational risk factors and advances our understanding of the vascular phenomena associated with peripheral nerve compression.
American Psychological Association (APA)
Wilson, Katherine E.& Tat, Jimmy& Keir, Peter J.. 2017. Effects of Wrist Posture and Fingertip Force on Median Nerve Blood Flow Velocity. BioMed Research International،Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1138414
Modern Language Association (MLA)
Wilson, Katherine E.…[et al.]. Effects of Wrist Posture and Fingertip Force on Median Nerve Blood Flow Velocity. BioMed Research International No. 2017 (2017), pp.1-8.
https://search.emarefa.net/detail/BIM-1138414
American Medical Association (AMA)
Wilson, Katherine E.& Tat, Jimmy& Keir, Peter J.. Effects of Wrist Posture and Fingertip Force on Median Nerve Blood Flow Velocity. BioMed Research International. 2017. Vol. 2017, no. 2017, pp.1-8.
https://search.emarefa.net/detail/BIM-1138414
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1138414