Olson Chiropractic Center

Dynamic Range of Motion Testing

909 Broadway #10
  Yankton, SD 57078
605-665-2434
By using sophisticated sensors within the inclinometers, the Dynamic ROM system records the patient's entire ROM through the plane of movement and displays it in a graphical representation on the computer screen.

Unlike other systems which simply give you a static endpoint measurement of ROM, Dynamic ROM captures the entire movement. The figure above shows a typical Dynamic ROM recording of the dynamic motion of the spine during three repetitions of lumbar flexion and extension.


The inclinometers are attached to straps placed over T12 and S1. The recording of the sensor at S1 is subtracted from the recording at T12 to produce the DIFFerential recording graph which represents the true motion of the patient's lumbar during lumbar flexion and extension motion. The flattened DIFF tracing line on each repetition during end-point indicates that both sensors are moving at the same rate of speed, and that the lumbar lordosis stopped unfolding before the end-point of trunk flexion had been reached.


With this information the clinician can observe and assess the quality and the pattern of the patient's motion as well as the quantity of the ROM. Dynamic Range of Motion elevates range of motion testing from a simple measurement tool to a true diagnostic tool
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