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Clinical Trial
. 2003 Apr;84(4):477-82.
doi: 10.1053/apmr.2003.50110.

Effects of robotic therapy on motor impairment and recovery in chronic stroke

Susan E Fasoli  1 , Hermano I Krebs, Joel Stein, Walter R Frontera, Neville Hogan
Affiliations
Clinical Trial

Effects of robotic therapy on motor impairment and recovery in chronic stroke

Susan E Fasoli et al. Arch Phys Med Rehabil. 2003 Apr.

Abstract

Objective: To examine whether robotic therapy can reduce motor impairment and enhance recovery of the hemiparetic arm in persons with chronic stroke.

Design: Pre-posttest design.

Setting: Rehabilitation hospital, outpatient care.

Participants: Volunteer sample of 20 persons diagnosed with a single, unilateral stroke within the past 1 to 5 years, with persistent hemiparesis.

Interventions: Robotic therapy was provided 3 times weekly for 6 weeks. Subjects able to reach robot targets were randomly assigned to sensorimotor or progressive-resistive robotic therapy groups. Robotic therapy consisted of goal-directed, planar reaching tasks to exercise the hemiparetic shoulder and elbow.

Main outcome measures: The Modified Ashworth Scale, Fugl-Meyer test of upper-extremity function, Motor Status Scale (MSS) score, and Medical Research Council motor power score.

Results: Evaluations by a single blinded therapist revealed statistically significant gains from admission to discharge (P<.05) on the Fugl-Meyer test, MSS score, and motor power score. Secondary analyses revealed group differences: the progressive-resistive therapy group experienced nonspecific improvements on wrist and hand MSS scores that were not observed in the sensorimotor group.

Conclusions: Robotic therapy may complement other treatment approaches by reducing motor impairment in persons with moderate to severe chronic impairments.

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