The Effect of Manipulating Sensory Afferent Information on Balance of Knee below Amputation

Reduction in sensory integration and a decline in the deep sensory receptors, visual and vestibular are the important factors that decreased the balance. The present study investigated the effect of manipulating sensory afferent information on balance of knee below amputation.
In this cross-sectional study 23 patients with lower limb amputation were participated. To assess postural control and balance sensory organization test was used in Posturography device. This devise assessed the state of balance in the first six items (there are three senses of visual, vestibular and proprioception), second (delete vision), third (removal vestibular), fourth (delete proprioception), fifth (delete vision and proprioception) and sixth (remove all sense of visual, vestibular and proprioception). Sensory Organization Test was determined balance score with two variable displacements in central of gravity and stability.
The analysis of variance with repeated measures for stability variable showed statistically significant difference between the first and third condition with other condition. However, there was no significant difference between the second with the fourth, fifth with sixth conditions. Also the difference was statistically significant in lower limb amputees for variable displacement in central of gravity in the first and second situations. People with lower limb amputees have in the first position based on the displacement of the center of gravity, better than five other situations.
The results showed that by removing two or three sensory afferent information balance is reduced in amputees.