MMT Clinical Applications 4

Question 1

A patient demonstrates fasciculations and progressive atrophy in tested muscles alongside MMT grades of 2-3. These findings are most consistent with:

Accepted Answer

Lower motor neuron lesion

Answer

Fasciculations, atrophy, and reduced tone with low MMT grades are classic signs of a lower motor neuron lesion causing denervation.

Question 2

When testing the quadriceps in a patient who has recently undergone ACL reconstruction, which precaution is most relevant?

Accepted Answer

Avoid terminal knee extension resistance in the early healing phase

Answer

Resisted terminal knee extension places shear force on the ACL graft in the early healing phase and should be avoided or modified per protocol.

Question 3

A therapist is performing MMT on a patient with polymyositis. Which pattern of weakness would be most characteristic?

Accepted Answer

Symmetric proximal extremity weakness

Answer

Polymyositis is an inflammatory myopathy that produces symmetric proximal muscle weakness, making hip and shoulder girdle muscles the primary targets.

Question 4

During MMT documentation for a legal or disability evaluation, which practice best ensures reliability and defensibility of grades?

Accepted Answer

Documenting the exact test position, stabilization, and direction of resistance applied

Answer

Documenting test position, stabilization method, and resistance direction provides the context needed to replicate the test and defend the grade in legal or disability proceedings.

Question 5

A patient with multiple sclerosis is being tested on a warm day and shows notably lower MMT grades than on a previous cool day. This phenomenon is best explained by:

Accepted Answer

Uhthoff's phenomenon — heat-sensitive conduction block in demyelinated axons

Answer

Uhthoff's phenomenon describes transient worsening of neurologic symptoms in MS when body temperature rises, due to impaired conduction in demyelinated nerve fibers.

(MMT) Manual Muscle Testing Practice Test

(MMT) Manual Muscle Testing Practice Test

MMT Clinical Applications 4