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The (standard) MRC-scale of muscle strength/weakness
| Grade | Description |
|---|---|
| 0 | No contraction |
| 1 | Flicker or trace of contraction |
| 2 | Full range of active movement, with gravity eliminated |
| 3 | Active movement against gravity |
| 4 | Active movement against gravity and resistance |
| 5 | Normal power |
