| MedX rehabilitative instruments feature state
of the art computer technology that enhances decades of strength-training
expertise. Computer readings record range of motion and correlate
force output (muscular torque) with multiple joint angles. Both
total functional torque (TFT) and net muscular torque (NMT) are
recorded by the machine's computer. This equipment and the protocol
for using each machine is supported with an impressive array of
on going research, in both academic and clinical settings. Equipment features pioneered by MedX include:
• Stabilization
for muscle isolation
• Counterbalancing gravity's effect
for accurate torque measurement
• Short stroke length weight stacks
for reduction of friction and kinetic energy during dynamic exercise
• Isometric testing at multiple
joint angles
• Non-muscular torque assessment
Here at Advanced Spine Care Center we utilize the Lumbar
and Cervical Extension Machines to provide objective measurement
of both lumbar and cervical extensor strength.
We also have 6 other MedX exercise machines to
assist in each patient's rehabilitation. Lumbar Extension Machine The MedX Lumbar extension machine provides functional
testing and spinal therapy. A unique system of pelvic stabilization
provides true isolation of the deep muscles of the lumbar spine
(erector spinae and multifidus). Weakness of these muscles can be
responsible for chronic disability and persistent or recurring pain.
The Lumbar Extension Machine offers a 72 degree range of motion,
with the ability to set isometric test points every three degrees.
The computer comes equipped with two monitors and software that
offers features such as comparisons to norms and the ability to
detect a lack of full effort. The machine provides an adjustable counterweight
to factor torso mass out of force readings. To determine net muscular
torque (NMT), stored energy (SE; tissue compression and/or joint
elasticity) is measured at each testing angle and then deducted
from total functional torque, TFT (NMT=TFT-SE). In exercise mode, a compound weight stack provides
resistance from 10 to 400 foot-pounds in one foot-pound increments. Cervical Extension Machine The MedX Cervical Extension Machine is highly
reliable and specific for the quantification of isometric cervical
extension strength and dynamic variable resistance training. Isometric
testing can be performed every three degrees through a 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.
Because the cervical muscle must continually support the weight
of the head, headache and neck pain are common clinical complaints.
These ailments often originate as a result of muscular weakness
or traumatic injury. The MedX cervical extension machine is designed
to strengthen these muscle groups and eliminate these common complaints. This machine features dual weight stacks with
a stroke length of only 1.5 inches during a full range dynamic contraction.
This short stroke length reduces internal friction and lowers the
risk of impact forces. Weight can be selected at 3 inch-pound increments
from 30 to 900 inch-pounds of resistance.
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