MMT Basics and Principles 3

Question 1

Which condition must be met before assigning an MMT grade of '5' (Normal)?

Accepted Answer

Muscle holds end-range position against maximum resistance

Answer

Grade 5 (Normal) requires the muscle to hold the test position against maximum examiner resistance without giving way.

Question 2

When a patient substitutes with the tensor fasciae latae during hip abduction testing, which grade modification is appropriate?

Accepted Answer

Record the achieved grade with a note of substitution

Answer

When substitution occurs, the examiner documents the actual grade achieved but notes the compensatory muscle activity to avoid overestimating target muscle strength.

Question 3

In MMT grading, the '+' and '-' modifiers (e.g., 3+, 4-) indicate what?

Accepted Answer

Strength within the grade range but closer to the boundary

Answer

Plus and minus modifiers indicate that strength falls within a grade but is closer to the upper (+) or lower (-) boundary of that grade.

Question 4

Which factor does NOT directly influence the resistance applied during MMT?

Accepted Answer

Patient skin condition

Answer

Skin condition does not affect the force required to move or hold a limb segment; limb length, age, and segment weight all influence expected resistance levels.

Question 5

The Medical Research Council (MRC) scale and Kendall MMT scale both use 0-5 grading; what is a key difference?

Accepted Answer

Kendall uses plus/minus modifiers; MRC traditionally does not

Answer

The Kendall system commonly employs plus/minus modifiers to refine grades, while the traditional MRC scale uses whole numbers without modifiers.

(MMT) Manual Muscle Testing Practice Test

(MMT) Manual Muscle Testing Practice Test

MMT Basics and Principles 3