Evaluation of gait with multichannel electrical stimulation

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Biomedical Engineering

Background:

• Hemiplegia following stroke or head injury significantly impairs gait and mobility.
• Traditional gait rehabilitation can be lengthy and may not fully restore functional independence.
• Electrical stimulation offers a potential adjunct to enhance motor recovery and functional outcomes.

Purpose of the Study:

• To evaluate the efficacy of short, intensive multichannel electrical stimulation therapy in patients with hemiplegia.
• To assess the impact of this therapy on gait parameters and functional ambulation.
• To determine the number of sessions required to achieve significant improvements in gait.

Main Methods:

• 14 patients with hemiplegia underwent gait rehabilitation incorporating multichannel electrical stimulation.
• Surface electrodes stimulated key lower and upper limb muscles (peroneal nerve, soleus, quadriceps, hamstring, gluteus maximus, triceps brachii).
• A portable microprocessor six-channel stimulator/stride analyzer recorded gait parameters during therapy sessions.

Main Results:

• All patients achieved independent ambulation with a crutch after an average of 14 stimulation sessions.
• The therapy facilitated a gradual increase in walking distance and functional mobility.
• Gait parameters including stride time and stance symmetry were systematically recorded and analyzed.

Conclusions:

• Short, intensive multichannel electrical stimulation is an effective therapy for improving gait in hemiplegic patients.
• This approach can accelerate the achievement of independent ambulation in post-stroke and head injury survivors.
• The integrated stride analyzer allows for objective measurement of gait improvements during rehabilitation.