First, it is helpful in designing a treatment program, such as corrective surgery. Second, when used after treatment, it enables the treatment program to be evaluated by comparing data before and after treatment. Several types of tests are performed during a gait analysis. During an exam, a staff member will measure the patient's range of motion and muscle strength. Video cameras will record the patient walking from the front and side.
Motion cameras see only special markers that are placed on the patient.
The cameras are linked to a computer and the motion of the markers tells us about the movement that is occurring at the trunk, the pelvis and each leg. Step lengths and walking speed are also measured. These are large, sensitive scales hidden in the floor. They measure the amount of force a patient uses while walking. This information helps the staff understand the reasons why the patient might walk differently than expected.