Training mobility tasks after stroke with combined mental and physical practice: a feasibility study

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Motor Learning

Background:

• Stroke survivors often experience motor deficits affecting mobility.
• Mental practice (MP) is a cognitive strategy explored for motor skill acquisition.
• Understanding MP's efficacy in early motor learning post-stroke is crucial.

Purpose of the Study:

• To investigate the potential of mental practice (MP) in improving two mobility tasks in individuals post-stroke.
• To assess changes in affected limb loading and task duration as indicators of learning.
• To determine the retention of these changes 24 hours after MP intervention.

Main Methods:

• Twelve patients with stroke participated in the study.
• Participants underwent training using mental practice (MP) for sit-to-stand and stand-to-sit tasks.
• Vertical forces were measured using force plates to quantify limb loading; task duration was also recorded.

Main Results:

• Significant increases in affected limb loading were observed during both standing up (16.2%) and sitting down (17.9%) post-MP.
• These improvements in limb loading were retained 24 hours after training, indicating learning.
• Task duration did not show significant changes, suggesting limb loading is a more sensitive early learning metric.

Conclusions:

• Mental practice (MP) can promote motor learning in individuals with stroke, specifically in modifying limb-loading strategies.
• Limb-loading strategies are more sensitive indicators of early motor learning from MP than task speed.
• MP shows promise as a non-invasive intervention to enhance motor recovery and functional mobility post-stroke.