How proprioceptive impairments affect quiet standing in patients with multiple sclerosis

摘要: To assess if multiple sclerosis patients with proprioceptive impairment are specifically affected during quiet standing eyes open and how they can develop motor compensatory processes, 56 patients, classified from sensory clinical tests as ataxo-spastic (MS-AS) or only having spasticity (MS-S), were compared to 23 healthy adults matched for age. The postural strategies assessed the centre-of-pressure trajectories (CP), measured a force platform in condition single trial lasting 51.2 s. vertical projection of centre gravity (CGv) its difference CP (CP-CGv) then estimated through biomechanical relationship. These two movements permit characterization performance horizontal acceleration communicated CG that, global energy expenditure, respectively. Both MS-AS MS-S groups demonstrate larger CGv CP-CGv than individuals same Whilst similar values noticed both MS subgroups, suggesting performances, statistically significant differences observed component. Biomechanically, this feature expresses necessity group augmented neuro-muscular means control their body movements, group. By demonstrating accompanied by varying degree expenditure maintain undisturbed upright stance, study reveals that which loss compensate deficit more efficient strategies, when still open.