Hybrid robot-assisted gait training for motor function in subacute stroke: a single-blind randomized controlled trial

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Robotics

Background:

• Robot-assisted gait training (RAGT) complements conventional stroke rehabilitation with high-intensity, repetitive training.
• Existing RAGT systems are typically end-effector or exoskeleton types.
• A novel hybrid RAGT system was developed to combine the advantages of both existing types.

Purpose of the Study:

• To evaluate the immediate and 3-month follow-up effects of a novel hybrid RAGT system.
• To compare the novel RAGT system's efficacy against conventional rehabilitation in nonambulatory subacute stroke patients.

Main Methods:

• A single-blind randomized controlled trial involving 40 nonambulatory subacute stroke patients.
• Patients were randomized to receive either conventional rehabilitation alone or with 15 sessions of the novel hybrid RAGT.
• Lower-extremity motor function, balance, and gait were assessed using standardized measures (AROM, MMT, FMA, PASS, BBS, POMA, TUG, walking speed).

Main Results:

• Both groups showed significant within-group improvements in motor, balance, and gait parameters post-intervention and at follow-up.
• The novel hybrid RAGT group demonstrated statistically significant superiority over the control group in Fugl-Meyer Assessment lower-extremity (FMA-LE) and total (FMA-total) scores.

Conclusions:

• The novel hybrid RAGT system is effective in improving outcomes for stroke patients.
• Further research is needed to establish strong clinical evidence for its effectiveness compared to controls, especially for patients with significant leg dysfunction.