A common injury sustained in a car accident is called a whiplash injury. During a whiplash type of injury the head is first thrown back, and then whipped forward. During this rapid acceleration, the muscles in the back and sides of the neck are torn. The same effect occurs in the low back.

A muscle sprain or tendon strain (tearing of fibers) sustained from a whiplash injury can be very painful, and if not treated, can lead to excessive scar tissue development, lack of range of motion, and secondary weakness. These tissue responses and impairments lead to the inability to complete daily activities, and can lead to chronic pain. Pain after a whiplash injury commonly persists for more than two years. In a study of 137 patients, two years after injury, a high percentage (shown below) had continued neck pain and headaches, and 40-50% had continued shoulder pain and low back pain.

MedX therapy has been very effective in treating chronic neck and back pain related to whiplash type injuries. Because of the equipment's ability to isolate the injured muscles, slow progressions in range of motion and strength are made with resistance training. Loading the muscle with resistance helps to break scar tissue adhesions and build stronger, healthier, muscle tissue. The effects of the training improve range of motion of the spine, strength, and endurance.

PDR's average outcomes in patient recovery are well above 70% in less than 3 months of treatment! This is a huge contrast to the statistic found in the study citied above. The cervical strength and range of motion of patients who complete therapy at PDR are on average within 13% of their normative comparison. Thus, MedX training has been shown to be very effective in re-gaining cervical range of motion and strength which persist after whiplash injury, and provide patients with improved neck and back function, and less pain!