scholarly journals Exploring selective neural electrical stimulation for upper limb function restoration

2016 ◽  
Vol 26 (2) ◽  
Author(s):  
Wafa Tigra ◽  
David Guiraud ◽  
David Andreu ◽  
Bertrand Coulet ◽  
Anthony Gelis ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Upper Limb ◽  
Surgical Intervention ◽  
Video Recording ◽  
New Approach ◽  
Preliminary Results ◽  
Surface Electrodes ◽  
Cuff Electrode ◽  
Upper Limb Function ◽  
Stimulation Of

This article introduces a new approach of selective neural electrical stimulation of the upper limb nerves. Median and radial nerves of individuals with tetraplegia are stimulated via a multipolar cuff electrode to elicit movements of wrist and hand in acute conditions during a surgical intervention. Various configurations corresponding to various combinations of a 12-poles cuff electrode contacts are tested. Video recording and electromyographic (EMG) signals recorded via sterile surface electrodes are used to evaluate the selectivity of each stimulation configuration in terms of activated muscles. In this abstract we introduce the protocol and preliminary results will be presented during the conference.

Electrical Stimulation of the Upper Limb in Stroke

2004 ◽  
Vol 83 (8) ◽  
pp. 592-600 ◽  
Author(s):  
J R. de Kroon ◽  
M J. IJzerman ◽  
G J. Lankhorst ◽  
G Zilvold
Keyword(s):  
Electrical Stimulation ◽  
Upper Limb ◽  
Stimulation Of

scholarly journals Effects of Excitatory Transcranial Magnetic Stimulation of the Anterior Intraparietal Area in Chronic Stroke Patients

2018 ◽  
Author(s):  
Ronaldo Luis da Silva ◽  
Angela Maria Costa de Souza ◽  
Francielly Ferreira Santos ◽  
Sueli Toshie Inoue ◽  
Johanne Higgins ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Motor Function ◽  
Upper Limb ◽  
Lower Limb ◽  
Magnetic Stimulation ◽  
Sensory Function ◽  
Stroke Patients ◽  
Chronic Patients ◽  
Upper Limb Function ◽  
Stimulation Of

1) Objective: to evaluate the effects of excitatory transcranial magnetic stimulation of the anterior intraparietal area in chronic patients with a frontal lesion and parietal sparing due to stroke on the impaired upper (UL) and lower limb (LL) as measured by Fugl-Meyer Assessment (FMA). 2) Methods: three patients (P1: 49.83/2.75, P2: 53.17/3.83, P3:63.33/3.08 years-old at stroke/years post-stroke, respectively) received two weeks (five days/ week) of rTMS at 10 Hz of the left anterior intraparietal area (AIP). A patient was treated in similar conditions with a sham coil (56.58/4.33) No complimentary therapy was delivered during the study. Patients were evaluated before, after- and two-months post-treatment (A1, A2 and A3, respectively). 3) Results: We found increased scores for lower limb in motor function subsection for P1 and P3 and in sensory function for P2 by A2 that remained at A3. We also found an increased score for upper limb motor function for P2 and P3, but the score decreased by A3 for P2. P3 score for upper limb ROM increased by A3 compared to A1 and A2. 4) Conclusion: AIP excitatory rTMS increased the FMA scores for lower and upper limb function, showing a broader effect when compared to M1 stimulation.

scholarly journals Improvement and Neuroplasticity after Combined Rehabilitation to Forced Grasping

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Michiko Arima ◽  
Atsuko Ogata ◽  
Kazumi Kawahira ◽  
Megumi Shimodozono
Keyword(s):  
Electrical Stimulation ◽  
Upper Limb ◽  
Near Infrared ◽  
Botulinum Toxin Type A ◽  
Combined Treatment ◽  
Neuromuscular Electrical Stimulation ◽  
Botulinum Toxin Type ◽  
Functional Improvement ◽  
Upper Limb Function ◽  
Flexor Muscles

The grasp reflex is a distressing symptom but the need to treat or suppress it has rarely been discussed in the literature. We report the case of a 17-year-old man who had suffered cerebral infarction of the right putamen and temporal lobe 10 years previously. Forced grasping of the hemiparetic left upper limb was improved after a unique combined treatment. Botulinum toxin type A (BTX-A) was first injected into the left biceps, wrist flexor muscles, and finger flexor muscles. Forced grasping was reduced along with spasticity of the upper limb. In addition, repetitive facilitative exercise and object-related training were performed under low-amplitude continuous neuromuscular electrical stimulation. Since this 2-week treatment improved upper limb function, we compared brain activities, as measured by near-infrared spectroscopy during finger pinching, before and after the combined treatment. Brain activities in the ipsilesional sensorimotor cortex (SMC) and medial frontal cortex (MFC) during pinching under electrical stimulation after treatment were greater than those before. The results suggest that training under electrical stimulation after BTX-A treatment may modulate the activities of the ipsilesional SMC and MFC and lead to functional improvement of the affected upper limb with forced grasping.

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