Improved kinematics and motor control in a longitudinal study of a complex therapy movement in chronic stroke

Journal article


Hesam-Shariati, Negin, Trinh, Terry, Thompson-Butel, Angelica G., Shiner, Christine T., Redmond, Stephen J. and McNulty, Penelope A.. (2019). Improved kinematics and motor control in a longitudinal study of a complex therapy movement in chronic stroke. IEEE Transactions on Neural Systems and Rehabilitation Engineering. 27(4), pp. 682-691. https://doi.org/10.1109/TNSRE.2019.2895018
AuthorsHesam-Shariati, Negin, Trinh, Terry, Thompson-Butel, Angelica G., Shiner, Christine T., Redmond, Stephen J. and McNulty, Penelope A.
Abstract

Impaired motor control post-stroke is typically measured using clinical assessments employing categorical and subjective scoring. We investigated quantitative kinematic parameters of a complex movement with therapy in chronic stroke. Tri-axial accelerometry of the more-affected arm of 24 patients was recorded during early- (day 2-3) and late- (days 12-14) therapy, and for 13 patients at 6-month follow-up. Clinical assessments included the classification of motor-function as low, moderate, or high. Kinematic parameters were measured during Wii-baseball swings to assess the effect of time and the level of motor-function. Clinical tests improved over time (all p <; 0.01). Increased acceleration magnitude over time was significant only at proximal sensors (p <; 0.05), and there was an effect of motor-function at distal sensors (p <; 0.05). Normalized velocity decreased (p <; 0.05) at all sensors over time. Peak acceleration and peak deceleration increased over time, predominately at proximal sensors. Kinematic parameters provide an objective and quantitative measure of change in motor-function that is not possible with clinical assessments. The complex patterns of change were not consistent between and within levels of motor-function but reflected improved motor control that was sustained over time. These data emphasize the potential for ongoing improvements in motor capacity in chronic stroke with additional rehabilitation.

Keywordsacceleration; deceleration; kinematics; rehabilitation; upper-limb
Year2019
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
Journal citation27 (4), pp. 682-691
PublisherIEEE Xplore
ISSN1534-4320
Digital Object Identifier (DOI)https://doi.org/10.1109/TNSRE.2019.2895018
Scopus EID2-s2.0-85064603358
Research or scholarlyResearch
Page range682-691
Publisher's version
License
All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online31 Jan 2019
Publication process dates
Deposited03 Jun 2021
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