Grades of Muscle Strength
Grade | Description |
|---|---|
5 or N | Full range of motion against gravity and full resistance for the patient’s size, age, and sex |
N− | Slight weakness |
G+ | Moderate weakness |
4 or G | Movement against gravity and moderate resistance at least 10 times without fatigue |
F+ | Movement against gravity several times or mild resistance one time |
3 or F | Full range against gravity |
F− | Movement against gravity and complete range of motion one time |
P+ | Full range of motion with gravity eliminated but some resistance applied |
2 or P | Full range of motion with gravity eliminated |
P− | Incomplete range of motion with gravity eliminated |
1 or T | Evidence of contraction (visible or palpable) but no joint movement |
0 | No palpable or visible contraction and no joint movement |
N = normal; G = good; F = fair; P = poor; T =trace. | |