(Stroke. 2000;31:1360.)
© 2000 American Heart Association, Inc.
Original Contributions |
Chronic Motor Dysfunction After Stroke
Recovering Wrist and Finger Extension by Electromyography-Triggered Neuromuscular Stimulation
From the Motor Control Laboratory, Center for Exercise Science (J.C., S.K.), and the Physical Therapy Department (K.L., M.T., A.B.), University of Florida, Gainesville.
Correspondence to James Cauraugh, Motor Control Laboratory, 132 FLG, PO Box 118207, University of Florida, Gainesville, FL 32611-8207. E-mail jcaura{at}hhp.ufl.edu
Background and Purpose—After
stroke, many individuals have chronic unilateral motor dysfunction in
the upper extremity that severely limits their functional movement
control. The purpose of this study was to determine the effect of
electromyography-triggered neuromuscular electrical stimulation on the
wrist and finger extension muscles in individuals who had a stroke 
1
year earlier.
Methods—Eleven individuals volunteered to participate and were randomly assigned to either the electromyography-triggered neuromuscular stimulation experimental group (7 subjects) or the control group (4 subjects). After completing a pretest involving 5 motor capability tests, the poststroke subjects completed 12 treatment sessions (30 minutes each) according to group assignments. Once the control subjects completed 12 sessions attempting wrist and finger extension without any external assistance and were posttested, they were then given 12 sessions of the rehabilitation treatment.
Results—The Box and Block test and the force-generation task (sustained muscular contraction) revealed significant findings (P<0.05). The experimental group moved significantly more blocks and displayed a higher isometric force impulse after the rehabilitation treatment.
Conclusions—Two lines of evidence clearly support the use of the
electromyography-triggered neuromuscular electrical stimulation
treatment to rehabilitate wrist and finger extension movements of
hemiparetic individuals 1 year after stroke. The treatment program
decreased motor dysfunction and improved the motor capabilities in this
group of poststroke individuals.
Key Words: motor activity • rehabilitation • stroke assessment • stroke management
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