Targeting paretic propulsion to improve poststroke walking function: a preliminary study.

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Biomedical Engineering

Background:

• Stroke survivors often experience persistent locomotor deficits, particularly reduced paretic propulsion during walking.
• Current rehabilitation strategies may not fully address these specific biomechanical impairments.

Purpose of the Study:

• To assess the feasibility and safety of a novel 12-week intervention combining maximal speed treadmill walking with functional electrical stimulation (FastFES) of the paretic ankle.
• To evaluate the effects of FastFES training on gait, balance, and walking function in individuals post-stroke.
• To explore the relationship between baseline impairment severity and treatment outcomes.

Main Methods:

• A single-group, pre-post preliminary study was conducted in a research laboratory setting.
• Thirteen individuals with post-stroke locomotor deficits participated in 12 weeks of FastFES training (3 sessions/week, 30 min/session).
• Gait mechanics, functional balance, walking function (short/long distance), and self-perceived participation were measured at baseline, post-training, and 3-month follow-up.

Main Results:

• The FastFES intervention was safe and feasible, with 12 of 13 participants completing the training.
• Significant improvements were observed in paretic propulsion, functional balance, walking function, and self-perceived participation (P<.02).
• These improvements were maintained at the 3-month follow-up, with 11 participants achieving meaningful functional gains.

Conclusions:

• The FastFES intervention is safe and feasible for individuals post-stroke.
• This promising locomotor intervention demonstrates significant improvements in walking ability and balance.
• Further research is warranted to explore the full potential of FastFES for stroke rehabilitation.