| Phenotype details |
onset 15y with feet weakness and difficulty walking; Muscle weakness, legs>arms, proximal>distal; Mild wasting in proximal of legs; Mild ataxia; Hands tremor; Abnormal gait; Genu valgum; Difficulty walking, running and climbing steps; Prominent calves; EMG-NCV: motor neuron disease. Elevated level of CPK. |