Diabetes Care, Vol 18, Issue 5 638-645, Copyright © 1995 by American Diabetes Association
Postural stability in diabetic polyneuropathy
P Boucher, N Teasdale, R Courtemanche, C Bard and M Fleury
Laboratoire de Performance Motrice Humaine, Universite Laval, Quebec, Canada.
OBJECTIVE--To examine whether sensory changes in lower limbs associated
with diabetic sensory polyneuropathy compromise postural stability in
different visual sensory conditions. RESEARCH DESIGN AND METHODS--The
presence and severity of sensory neuropathy was evaluated with a clinical
scale and measures of nerve conduction velocity in the lower limbs. Balance
control was evaluated by testing subjects' postural stability (with a force
platform) with vision, without vision, and during a recovery period after
being without vision. RESULTS--Neuropathic patients showed larger ranges of
sway, a faster sway speed, and a greater dispersion of sway than control
subjects in all conditions. They also exhibited similar or less stable
postural performance with vision than that of control subjects without
vision. There was a strong relationship between the severity of the
neuropathy and the postural stability. CONCLUSIONS--This experiment
highlights that even with vision, the postural stability of neuropathic
patients is impaired and may put them at higher risk of falling when
performing more challenging daily tasks.