High vs. Low Electrical Stimulation Frequencies for Motor Recovery in Hemiplegia

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Stroke is the primary reason of serious, long-term disability in the United States (American Heart Association, 2004) and paralysis of the upper extremity will be the most debilitating of post-stroke sequelae, persisting for some weeks to months following onset.

Although exercise programs constitute a vital component of post-stroke rehabilitation, stroke survivors can't regain enough voluntary motor control in the upper extremity with traditional rehabilitation methods to effectively and fully grasp and manipulate objects. To address this shortcoming, newer and more technologically advanced rehabilitation methods have been investigated. In fastidious, the use of neuromuscular functional electrical stimulation (FES) has been shown to have positive effects in active augmenting and facilitating movement motor function subsequent neurological impairment.

FES is the application of a continuous present of electricity administered through a surface electrode at the nerve or motor point of a muscle to elicit a muscular contraction.