Computerized Dynamic Posturography
Computerized Dynamic Posturography (CDP) testing assesses an individual’s ability to maintain stance under various test conditions. The human body relies on information from the visual system (eyes), vestibular system (inner ear) and somatosensory system (feeling in our feet) to stabilize the body. CDP testing assesses the ability to utilize each of these three systems to determine if one or multiple systems is at a deficit.
Testing is completed on a platform that looks toward a colorful wall. A protective safety harness is worn during testing should the patient feel off balance or inclined to sway/fall. The patient will be asked to remove his or her shoes during testing. Different test conditions will assess ability to maintain stance — in some conditions with the eyes closed, in other conditions the footplate or background will move in response to the patient’s movements. Other tests will cause the footplate to move forward or backward or tilt up/down. The patient will be instructed by the clinician as to what they should expect for each of the test conditions. Test results are compared to responses based on normative age values from 3 years of age through 79 years of age.
Results from CDP testing can be useful in assessing functional balance and may be helpful in determining if vestibular rehabilitation would be beneficial. CDP testing may be completed before and during vestibular rehabilitation to determine if the patient is making progress while completing therapy.
