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Clinical features of PLS patients
| Subject | Motor Units (n) | Age | Disease Duration, yr | Motor Score* | Finger Taps/s |
|---|---|---|---|---|---|
| 1 | 4 | 43 | 5 | 34 | 2.5 |
| 2 | 1 | 54 | 5 | 35 | 2.5 |
| 3 | 4 | 45 | 6 | 35 | 3.4 |
| 4 | 3 | 47 | 6 | 35 | 2.7 |
| 5 | 2 | 53 | 7 | 34.5 | 3.0 |
| 6 | 4 | 65 | 7 | 35 | 2.3 |
| 7 | 3 | 65 | 9 | 34.5 | 1.7 |
| 8 | 1 | 58 | 10 | 35 | 3.9 |
| 9 | 3 | 72 | 11 | 34.5 | 2.3 |
PLS, primary lateral sclerosis.
Strength of 7 muscles, each graded 0–5 using the Medical Research Council scale (a score of 35 indicates full strength).
