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Improved kinematics and motor control in a longitudinal study of a complex therapy movement in chronic stroke
Hesam-Shariati, Negin Trinh, Terry Thompson-Butel, Angelica G. Shiner, Christine T. Redmond, Stephen J. McNulty, Penelope A.
Hesam-Shariati, Negin
Trinh, Terry
Thompson-Butel, Angelica G.
Shiner, Christine T.
Redmond, Stephen J.
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.
Keywords
acceleration, deceleration, kinematics, rehabilitation, upper-limb
Date
2019
Type
Journal article
Journal
IEEE Transactions on Neural Systems and Rehabilitation Engineering
Book
Volume
27
Issue
4
Page Range
682-691
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
All rights reserved
File Access
Controlled