Effects of mental practice on affected limb use and function in chronic stroke

Area of Science:

• Neurorehabilitation
• Motor Recovery
• Stroke Rehabilitation

Background:

• Stroke frequently results in impaired limb function and reduced use of the more affected extremity.
• Restoring limb function is crucial for improving independence and quality of life in stroke survivors.

Purpose of the Study:

• To evaluate the effectiveness of a mental practice (MP) protocol in enhancing the function and utilization of the more affected limb in individuals post-stroke.
• To investigate MP's impact on motor control and daily activities.

Main Methods:

• A randomized controlled trial with a multiple baseline design was employed.
• Eleven chronic stroke patients with upper-limb hemiparesis received either MP integrated with activities of daily living (ADLs) or relaxation techniques for 6 weeks.
• The Motor Activity Log and Action Research Arm (ARA) test were used for outcome assessment.

Main Results:

• Patients in the MP group demonstrated significant increases in affected limb use and quality of movement, as reported by patients and caregivers.
• The MP group showed significantly greater improvements in ARA scores compared to the control group (P=.004).
• Control group participants exhibited only minor improvements in limb use and function.

Conclusions:

• The mental practice (MP) protocol shows promise in increasing the use and improving the motor function of the more affected limb in stroke patients.
• MP may facilitate motor recovery by enhancing limb salience or altering motor schemas.
• Further research is needed to elucidate the underlying mechanisms of MP-induced improvements in stroke rehabilitation.