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Rating for
Strength Deficit - Rating Tip of the Week
In terms of rating on the basis
of grip strength loss, the Guides discuss the
issues of strength evaluation and its very
limited role in impairment evaluation (Section
16.8). A few points to consider based on Section
16.8 of the Guides:
Grip strength loss cannot be rated in the
presence of compression neuropathies (Section
16.5d, pain, loss of motion, deformities or
absence of parts (Section 16.8 a) that would
impact the application of maximal force during
testing.
Grip strength loss is only rated in rare cases
when the examiner believes that the loss of
strength represents an impairing factor that has
not been considered by other rating methods
(Section 16.8a). In most cases, there is a more
reliable method than rating for grip strength
deficit for determining impairment.
Measurements should be done in all five
positions of a dynamometer and demonstrate a
bell-shaped curve to be considered valid results
(Section 16.8b).
Rapid exchange grip technique should be done to
ensure maximum effort by examinee (Section
16.8b).
An explanation or interpretation of any
findings which may be incongruent with other
evaluator’s findings or inconsistent with the
pathology present should be included with any
report.
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