MMT Trunk Assessment 3

Question 1

When palpating the rectus abdominis during MMT, where is the optimal location to assess muscle contraction?

Accepted Answer

Between the xiphoid process and pubic symphysis along the midline

Answer

The rectus abdominis runs vertically between the xiphoid process and pubic symphysis and is best palpated along this midline path.

Question 2

Which trunk MMT grade requires the patient to maintain a position against maximum resistance for the full test duration?

Accepted Answer

Grade 5

Answer

Grade 5 indicates normal strength, meaning the muscle holds against maximum resistance without yielding.

Question 3

During prone trunk extension testing, the therapist notices asymmetric paraspinal muscle bulk. What should be the next clinical step?

Accepted Answer

Test each side independently and document any asymmetry

Answer

Asymmetry warrants independent bilateral testing and documentation to accurately capture unilateral deficits.

Question 4

The quadratus lumborum contributes to which trunk movement assessed in MMT?

Accepted Answer

Trunk lateral flexion

Answer

The quadratus lumborum laterally flexes the trunk and is a key stabilizer assessed during trunk lateral flexion MMT.

Question 5

A patient scores Grade 4 on trunk flexion but Grade 2 on trunk extension. This pattern most commonly suggests:

Accepted Answer

Anterior cord syndrome or abdominal muscle hypertrophy with weak back extensors

Answer

Disproportionately weak trunk extensors relative to flexors can indicate anterior cord syndrome or selective extensor weakness from disuse or pathology.

(MMT) Manual Muscle Testing Practice Test

(MMT) Manual Muscle Testing Practice Test

MMT Trunk Assessment 3