Symptoms and signs in 30 affected persons (ADPSP index 3) in the five families
| Family | A | B | C | D | E |
|---|---|---|---|---|---|
| No | 7 | 5 | 7 | 5 | 6 |
| Symptoms at onset: | |||||
| Delayed motor milestones | 2 | 0 | 0 | 0 | 1 |
| Gait disturbance | 6 | 4 | 6 | 4 | 6 |
| Stiffness of lower limbs | 5 | 5 | 7 | 5 | 6 |
| Poor balance | 6 | 1 | 4 | 1 | 4 |
| Problems going down stairs | 4 | 4 | 6 | 3 | 4 |
| Rapidly worn out shoes | 6 | 5 | 5 | 5 | 5 |
| Poor athletic performance | 1 | 0 | 5 | 2 | 4 |
| Low backache | 4 | 3 | 3 | 2 | 2 |
| Signs (UL LL): | |||||
| Weakness | 0/7 7/7 | 1/5 5/5 | 1/7 7/7 | 0/5 5/5 | 1/6 5/6 |
| Spasticity | 0/7 7/7 | 2/5 5/5 | 2/7 7/7 | 1/5 5/5 | 1/6 6/6 |
| Hyperreflexia | 4/7 7/7 | 5/5 5/5 | 2/7 7/7 | 3/5 5/5 | 5/6 6/6 |
| Amyotrophy | 0/7 4/7 | 0/5 2/4 | 0/7 2/7 | 1/5 2/5 | 1/6 3/6 |
| Vibration sense decreased | 0/7 2/7 | 1/5 1/5 | 0/7 4/7 | 0/5 3/5 | 0/5 2/5 |
| Dysdiadochokinesia | 1/7 1/7 | 0/5 0/5 | 3/7 0/7 | 0/5 0/3 | 3/6 1/5 |
| Nystagmus (horizontal) | 3/7 | 1/5 | 3/7 | 0/5 | 0/6 |
| Dysarthria | 0/7 | 0/5 | 1/7 | 0/5 | 2/6 |
| Urinary symptoms | 4/7 | 0/5 | 5/7 | 0/5 | 4/6 |
| Pes cavus | 7/7 | 5/5 | 4/7 | 4/5 | 4/6 |
UL=upper limbs; LL=lower limbs.