Phenotype details |
see paper; ..., 8y-slow, progressive weakness muscles, abnormal gait; 10y-slow, progressive weakness lower limbs, frequent falls, difficulty in standing, walking and climbing stairs; 16y-only walk unaided for <15 min, unable to raise arms above head, no sensory/ocular/bulbar abnormalities, severe weakness proximal muscles all limbs, pelvic and shoulder girdles; 16y-normal mental status, no oculomotor/facial abnormalities with sensory and coordination examinations also finding no abnormalities |