功能性电刺激对康复训练效果的研究

Stroke, an acute cerebral vascular disease, has become the leading cause of death which is also the leading reason for causing adult disability in China. Sequela of stroke resulting in motor dysfunction has affected the quality of patients\' daily life. There are some new rehabilitation therapies such as stem cell therapy, transcranial magnetic stimulation, brain-computer interface, virtual reality technology, etc. This paper describes the application of Functional Electrical Stimulation （FES）in the treatment of stroke. FES therapy applies current to excitable tissues to supplement or replace the damaged nerve functions. To assist patients to perform some refined operations, this research project aims to use FES to enable patients with upper extremity hemiplegia to achieve four movements: index finger abduction, thumb abduction, five-finger abduction, and wrist abduction. In the experiment, four subjects respectively found the muscles corresponding to the above four hand movements, and attached electrode pads to the corresponding positions. The voltage frequency, pulse width and period of the power supply output are 50Hz, 1ms, and 5s respectively. The level of voltage is indeterminate because everyone has different ability to withstand voltage, which is related to personal physique, age, etc. All four subjects can successfully perform these four hand movements. This experiment proves that FES can help patients with upper extremity hemiplegia to achieve part of the hand function, and can be applied to patients for adjuvant therapy.