Action Observation Therapy for Upper Limb Recovery in Patients with Stroke: A Randomized Controlled Pilot Study

Area of Science:

• Neurorehabilitation
• Stroke Recovery
• Motor Learning

Background:

• Upper limb recovery after stroke is complex, with a need for innovative rehabilitative interventions.
• Action Observation Training (AOT) is a promising method for enhancing motor recovery in stroke survivors.
• Evidence comparing AOT to traditional Task-Oriented Training (TOT) for upper limb function is limited.

Purpose of the Study:

• To evaluate the efficacy of AOT compared to TOT in improving upper limb motor function and functional outcomes in acute stroke patients.
• To assess the rehabilitative gains in Fugl-Meyer Assessment for Upper Extremity (FMA-UE) and Functional Independence Measure (FIM) scores.

Main Methods:

• Thirty-two acute stroke patients with moderate to severe upper limb impairment were randomized into two groups.
• The experimental group received AOT sessions, while the control group received TOT sessions, both added to traditional therapy.
• Assessments including FMA-UE, Box and Block Test (BBT), FIM, and Modified Ashworth Scale (MAS) were conducted at baseline and post-treatment.

Main Results:

• Both groups showed significant improvement from baseline to post-treatment.
• The AOT group demonstrated significantly greater improvements in FMA-UE and FIM scores compared to the TOT group (p < 0.05).
• No adverse events were reported for either AOT or TOT.

Conclusions:

• Action Observation Training (AOT) can significantly enhance motor recovery and functional outcomes in subacute stroke patients with moderate to severe upper limb impairment.
• AOT is a safe and effective rehabilitative intervention that should be considered for wider application in stroke recovery.
• Further research should explore the long-term effects and optimal implementation of AOT in diverse stroke populations.