Gait training with a robotic leg brace after stroke: a randomized controlled pilot study.

Area of Science:

• Neurorehabilitation
• Robotics in Medicine
• Physical Therapy

Background:

• Robot-aided exercise therapy shows potential for improving walking in stroke survivors.
• Restoring mobility is crucial for functional recovery after stroke.
• Novel robotic devices are being developed to aid rehabilitation.

Purpose of the Study:

• To evaluate a new robotic knee brace for enhancing mobility in stroke survivors.
• To compare the efficacy of robotic knee brace therapy with a group exercise program.

Main Methods:

• A pilot study involved 24 ambulatory individuals with chronic hemiparesis post-stroke.
• Participants were randomized to robotic knee brace therapy or group exercise for 18 hours over 6 weeks.
• Gait velocity (10-m walk test) was the primary outcome; several secondary measures assessed function and balance.

Main Results:

• Twenty participants completed the study; no significant differences in gait velocity were found between groups at 6 weeks or 3-month follow-up.
• No within-group improvements in gait velocity were observed in either group.
• Both groups showed improvements in some secondary outcome measures; no complications were reported with robotic therapy.

Conclusions:

• Robotic knee brace therapy provided modest functional benefits for ambulatory stroke patients with chronic hemiparesis.
• These benefits were comparable to those achieved with a group exercise intervention.
• The robotic knee brace did not yield superior results compared to conventional group exercise for improving gait velocity.