Upper extremity applications of functional neuromuscular stimulation

Area of Science:

• Rehabilitation Engineering
• Neuroscience
• Biomedical Technology

Background:

• Functional electrical stimulation (FES) has a long history in research for muscle strength, spasticity reduction, and movement control.
• Clinical translation of FES has been gradual, with feasibility studies in spinal cord injury and stroke patients.
• Electrical stimulation demonstrates efficacy in reducing spastic tone, improving limb positioning, and preventing contractures.

Purpose of the Study:

• To review the clinical application and progress of Functional Electrical Stimulation (FES).
• To highlight the role of FES as a motor prosthesis for individuals with spinal cord injuries.
• To discuss the transfer of FES technology to clinical settings.

Main Methods:

• Review of existing research and clinical feasibility studies on FES.
• Analysis of FES application in patients with spinal cord injuries (primarily C4-C6 levels).
• Examination of FES as a motor prosthesis for hand positioning and grasp.

Main Results:

• FES has shown effectiveness in decreasing spasticity and improving limb positioning.
• Electrical stimulation can lead to improved voluntary movement in some cases.
• FES as a motor prosthesis has enabled greater independence in daily living and work for spinal cord-injured patients.

Conclusions:

• FES is increasingly moving from research to clinical practice.
• FES technology is proving beneficial as a motor prosthesis, particularly for hand function in spinal cord injury.
• Ongoing technology transfer programs are facilitating wider distribution of FES to multiple clinical centers.