Article

OBJECTIVE: To examine the validity of 5 robot-based assessments of arm motor
function poststroke.
DESIGN : Cross-sectional study.
SETTING : Outpatient clinical
research center. PARTICIPANTS: Volunteer sample of participants (N=40; age, >18y;
3-6mo poststroke) with arm motor deficits that had reached a stable plateau.
MAIN OUTCOME MEASURES : Clinical standards included
the arm motor domain of the Fugl-Meyer Assessment (FMA) and 5 secondary motor
outcomes: hand/wrist subsection of the arm motor domain of the FMA, Action
Research Arm Test, Box and Block test (BBT), hand motor subscale of the Stroke
Impact Scale Version 2.0, and Barthel Index. Robot-based assessments included
wrist targeting, finger targeting, finger movement speed, reaction time, and a
robotic version of the BBT. Anatomical measures included percent injury to the
corticospinal tract (CST) and extent of injury of the hand region of the primary
motor cortex obtained from magnetic resonance imaging. RESULTS: Participants had
moderate to severe impairment (arm motor domain of the FMA scores, 35.6+/-14.4;
range, 13.5-60). Performance on the robot-based tests, including speed (r=.82;
P<.0001), wrist targeting (r=.72; P<.0001), and finger targeting (r=.67;
P<.0001), correlated significantly with the arm motor domain of the FMA scores.
Wrist targeting (r=.57-.82) and finger targeting (r=.49-.68) correlated
significantly with all 5 secondary motor outcomes and with percent CST injury.
The robotic version of the BBT correlated significantly with the clinical BBT but
was less prone to floor effects. Robot-based assessments were comparable to the
arm motor domain of the FMA score in relation to percent CST injury and superior
in relation to extent of injury to the hand region of the primary motor cortex.
CONCLUSIONS : The present findings support using a battery of robot-based methods
for assessing the upper extremity motor function in participants with chronic stroke.
CI - Copyright (c) 2017 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS