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What is CDP?

Computerized Dynamic Posturography (CDP) is a virtual reality system used to diagnose your balance problems.  We have three main systems that we use to balance. These are vision, the inner ear, and our bodies. Through a series of tests, these systems will be assessed and compared to the average for your age group and gender. If one or more of these systems are impaired, physical therapy is provided to return them to normal function.

What do the Results tell me?

What Happens During the Test?

Three sets of tests are performed in total. The first test assesses your balance systems, the second your reaction times, and the third tests your ability to adapt.

- During the first test, your ability to keep your balance on stable and moving surfaces will be checked with your eyes open and closed. Additionally, your ability to stay steady while observing lines on a screen moving in front of you will be examined. As you perform this test, the CDP measures whether you are using your ankles or hips to stay balanced.  The test also determines if your center of gravity is correct.

- During the second test, the floor will move forwards and backwards underneath your feet and measures how quickly you respond. Again, your center of gravity is measured throughout the test.

- In the third test, the floor moves up and down, measuring how much energy you use to keep your balance.

All tests are performed with you in a harness and attached to the machine. This is to ensure your safety as the support from the harness makes it essentially impossible to fall.  A trained person will also be holding onto you throughout the test to provide extra support as needed.

The results of the test will be analysed and discussed with you on site so you can ask any questions at the time. However, if you had a hard time keeping your balance with your eyes open, it suggests that your visual system is impaired. If you sway more than usual with your eyes closed, or moving images/lines, it indicates that the inner ea is not functioning normally.  The test will also determine if your reaction times and postural stability on a moving surface is normal.  Furthermore, your ability to learn from repetitive motions will be analyzed to ensure your central nervous system is working effectively.

These results are then used to develop a treatment plan to get you better as efficiently as possible. If physical therapy is needed to improve your balance, this test will be performed intermittently to track your progress.

Call us at (240) 361–9000 if you have any questions or would like more information about this test.

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