Table 3 MRC Muscle Strength Scale
From: Assessment of patients with idiopathic inflammatory myopathies and isolated creatin-kinase elevation
Grade | Muscle function | Plane of movement |
|---|---|---|
0 | No contraction | – |
T | Tendons become prominent or feeble contraction felt in the muscle, but not visible movement of the part | – |
1 | Moves through partial range of motion | Horizontal plane (gravity eliminated position) |
2 | Moves through complete range of motion | Horizontal plane (gravity eliminated position) |
3 | Movement trough partial range of motion | Antigravity position |
4 | Gradual release from test position | Antigravity position |
5 | Holds test position without added pressure | Antigravity position |
6 | Hold test position against slight pressure | Antigravity position |
7 | Hold test position against slight to moderate pressure | Antigravity position |
8 | Hold test position against moderate pressure | Antigravity position |
9 | Hold test position against moderate to strong pressure | Antigravity position |
10 | Holds test position against strong pressure | Antigravity position |