MMt

Question 1

Why do we assess muscle strength

Answer 1

Posture
Gait
Range of motion

Question 2

Break test

Answer 2

Isometric

1 degree of motion

Question 3

concentric test

Answer 3

concentric resistance full ROM

Question 4

Eccentric test

Answer 4

eccentric resistance full ROM

most skilled

Question 5

MMT Scale

Answer 5

0-5
5 - full ROM, against gravity, strong MMT
4 - full ROM, against gravity,
moderate MMT
3 - full ROM, against gravity,
slight MMT - resistance will break position
2 - full ROM, gravity minimized
1 - 50% of ROM, gravity minimized
0 - no observable or palpable muscle contraction

Question 6

Evidence Limitations with MMT

Answer 6

Use of ordinal scale reduces objectivity
Varies between multitude of populations tested
Size of muscles of the “tester” vs. muscles of the “tested”

GOLD STANDARD try to keep same pressure applied for everyone

Question 7

Strength Testing: Clinical Reasoning Required

Answer 7

Weakness within a myotome

identify muscles with the same innervation

Question 8

Significant exceptions in MMT (3 parts of the body)

Answer 8

scapular
- Preferred placement of lever of resistance is through the arm
Triceps surae (gastroc & soleus): Testing has been found to be most reliable by having patient perform unilateral calf raises
hip abductors:
test with a longer lever arm
Can only be graded a 5 when resistance is applied distally at the ankle

Question 9

5 signs of fraility

Answer 9

unintentional weight loss

general feeling of exhaustion on 3 or more days a week

weakness in grip

slow ambulation

low levels of PA