Impaired postural balance correlates with complex walking performance in mildly disabled persons with multiple...

Area of Science:

• Neurology
• Rehabilitation Science
• Biomedical Engineering

Background:

• Understanding the influence of impaired postural balance on walking performance is crucial for multiple sclerosis (MS) gait rehabilitation.
• Previous research suggests a link between balance deficits and gait abnormalities in MS.

Purpose of the Study:

• To investigate the association between impaired postural balance and complex walking performance in individuals with mild MS.
• To compare these associations in persons with MS versus healthy controls.

Main Methods:

• Thirteen persons with MS (EDSS=2.5) and 13 healthy controls underwent assessments of walking performance (fast speed, Timed Up & Go, Timed 25 Feet Walking).
• Postural balance was evaluated using stabilometry, measuring 95% confidence ellipse sway area and sway velocity.

Main Results:

• Significant differences in postural balance and walking performance were observed between persons with MS and healthy controls, except for sway velocity.
• In persons with MS, sway area correlated significantly with Timed Up & Go and fastest safe walking speed.
• No significant correlations were found between postural balance measures and walking performance in healthy controls.

Conclusions:

• Impaired postural balance is demonstrably related to complex walking performance in individuals with MS.
• Early MS gait rehabilitation should incorporate exercises specifically targeting postural balance deficits.