Document Detail

Stochastic resonance stimulation for upper limb rehabilitation poststroke.
MedLine Citation:
PMID:  20729650     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: Previous studies have shown that subthreshold electrical or mechanical noise can reduce the sensory threshold and impart short-term improvements in sensorimotor function. We undertook this study to examine the effects of combined subsensory electrical and vibratory stimulation in conjunction with exercise training on long-term motor performance. DESIGN: Thirty subjects were recruited from adult community-dwelling stroke survivors with residual hemiparesis. Subjects were screened for residual motor ability using a functional task, and those who functioned below this level were excluded. All subjects had a history of a single unilateral ischemic or hemorrhagic stroke at least 6 mos before study entry and were not actively receiving occupational or physical therapy. Subjects were stratified by baseline upper extremity Fugl-Meyer (UEFM) (more impaired [28-35] and less impaired [36-55]) and were randomized to one of two groups: treatment (stochastic resonance stimulation [plus over minus sign] exercise: 15 subjects) and control (sham stimulation [plus over minus sign] exercise: 15 subjects). RESULTS: No significant difference was found between the stochastic resonance treatment and control group in the UEFM or in any of the secondary measures. The combined group showed modest improvements in UEFM from baseline to completion of therapy (mean improvement, 2.6 points) (P = 0.004); however, these improvements declined by 1-mo follow-up to 1.5 points (P = 0.055). No change in sensory function was detectable. CONCLUSIONS: Stochastic resonance therapy combined with occupational therapy was no more effective than occupational therapy alone in restoring sensorimotor performance. Other stochastic resonance stimulation montages or protocols might prove more effective.
Joel Stein; Richard Hughes; Susan D'Andrea; Bethany Therrien; James Niemi; Kathryn Krebs; Lisa Langone; Jason Harry
Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of physical medicine & rehabilitation / Association of Academic Physiatrists     Volume:  89     ISSN:  1537-7385     ISO Abbreviation:  Am J Phys Med Rehabil     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-23     Completed Date:  2010-09-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8803677     Medline TA:  Am J Phys Med Rehabil     Country:  United States    
Other Details:
Languages:  eng     Pagination:  697-705     Citation Subset:  AIM; IM    
Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Boston, Massachusetts, USA.
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MeSH Terms
Aged, 80 and over
Combined Modality Therapy
Electric Stimulation Therapy / methods*
Exercise Therapy*
Feasibility Studies
Middle Aged
Occupational Therapy / methods
Paresis / etiology,  rehabilitation*
Stroke / complications,  rehabilitation*
Vibration / therapeutic use*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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