A Faster Walking Speed Is Important for Improving Biomechanical Function and Walking Performance in Stroke Survivors

Area of Science:

• Biomechanics
• Neurology
• Rehabilitation Science

Background:

• Stroke survivors often experience impaired gait, affecting mobility and quality of life.
• Understanding the specific biomechanical differences between slow and fast walking speeds in young stroke survivors is crucial for effective rehabilitation.

Purpose of the Study:

• To compare joint kinematics and kinetics in young stroke survivors walking at different speeds (slow vs. fast).
• To provide clinical recommendations for gait rehabilitation based on identified biomechanical parameters.

Main Methods:

• Recruited 22 young stroke survivors (18-55 years) classified as slow (<0.79 m/s) or fast (>0.80 m/s) walkers.
• Measured joint kinematics and kinetics (pelvis, hip, knee, ankle) during level ground walking at self-selected speeds.
• Analyzed 10 walking biomechanical parameters correlated with walking speed.

Main Results:

• Slow walkers demonstrated significantly greater sagittal plane pelvic motion (P < .009).
• Reduced hip adduction/abduction range (P < .011), peak hip extension (P < .011), and paretic limb hip flexion moment (P < .029) were observed in slow walkers.
• Nonparetic limb hip flexion moment was significantly reduced in slow walkers compared to fast walkers and controls (P < .040).

Conclusions:

• This study is the first to detail compromised walking biomechanics in young stroke survivors based on walking speed.
• Identified biomechanical parameters can inform tailored rehabilitation programs to enhance walking function in stroke survivors.