MMT Upper Extremity Testing 2

Question 1

When testing the deltoid (middle fibers) for MMT, the patient's arm is positioned in which plane?

Accepted Answer

Frontal plane at 90° abduction

Answer

Middle deltoid testing is performed with the arm abducted to 90° in the frontal plane while the examiner applies downward resistance.

Question 2

A grade 2 (Poor) MMT score for the biceps brachii indicates the muscle can:

Accepted Answer

Move through full ROM with gravity eliminated

Answer

Grade 2 (Poor) means the muscle can complete full range of motion only when gravity is eliminated.

Question 3

Which nerve root level is primarily tested when assessing wrist extensor strength in MMT?

Accepted Answer

C6

Answer

Wrist extensors (ECRL and ECRB) are primarily innervated at C6 via the radial nerve.

Question 4

During MMT of the supraspinatus, the arm is positioned in the scapular plane at approximately:

Accepted Answer

60° elevation

Answer

The supraspinatus is tested with the arm at ~60° elevation in the scapular plane (30° anterior to the frontal plane) to isolate it from the deltoid.

Question 5

Which MMT position is used to gravity-eliminate the shoulder external rotators?

Accepted Answer

Side-lying with arm at side, elbow at 90°

Answer

In side-lying with the elbow bent to 90°, the forearm moves horizontally, eliminating gravity for shoulder external rotation testing.

(MMT) Manual Muscle Testing Practice Test