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DRX-9000 at the Relief Spine Center
The Medx


Medx is the only way to truly isolate the spine, then test and strengthen it without injury.

The Medx Cervical Extension Machine:
An effective, proven solution for patients who suffer from neck pain and/or headaches. Because the cervical muscle must continually support the weight of the head, headache and neck pain are common complaints. These ailments often originate as a result of muscular weakness or traumatic injury.

The Medx Cervical Extension Machine is highly reliable and specific for the quantification of isometric cervical extension strength testing and dynamic variable resistance training. Isometric testing can be performed every three degrees through the normal 126 degree range of motion. Validity is achieved by effectively stabilizing the torso to achieve cervical extension muscle isolation. Counterbalancing the mass of the head is performed to ensure accurate torque assessment by eliminating the effects of gravity.

The Lumbar Extension Machine:
The Lumbar Extension Machine can provide resistance over a full range of isolated lumbar motion (72 degrees). During the test, the software plots a strength curve that allows a comparison of the patient’s strength and range of motion to age and gender.

Accuracy and reliability of testing is addressed by the machine’s ability to factor out the torque of both torso mass and stored energy. Torso mass is eliminated via an adjustable counterweight. Stored energy (tissue compression and/or joint elasticity) can be assessed and factored out at each angle tested.
The Medx


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