Biomechanics blog post #2
Using bony landmarks and proper positioning
is necessary when measuring ROM so that you are able to put joints at zero for
a starting position. By identifying a bony landmark you are able to stabilize
the proximal joint. To have a good testing position it is important to have the
right amount of tension on the structure. The test position for MMT is the
position in which the muscle is placed for optimal muscle contraction. If a client can comfortably withstand pressure
in the test position for 3-4 seconds than they have normal muscle strength. The
gravity eliminated position is implemented when the client is unable to hold test
position and breaks after a few seconds. If they are graded a 2 (poor) or less,
MMT will be performed so that the structure being tested is parallel to the
ground as to eliminate gravity. To avoid unnecessary compensation, it is important
to provide stabilization to joint that is not being tested.
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