Manual Grading of Muscle Strength
| Grade | Degree of Strength |
|---|---|
| 5 | Normal strength |
| 4 | Muscle contraction possible against gravity plus some examiner resistance |
| 3 | Muscle contraction possible against gravity only |
| 2 | Muscle contraction possible only with gravity removed |
| 1 | Flicker of muscle contraction observed but without movement of extremity |
| 0 | No contraction |

