| Phenotype details |
onset middle age, progressive; wheelchair bound; no cardiac involvement; no eye anomalies; no brain abnormalities; no intellectual disability; forced vital capacity normal; muscle weakness proximal upper limb and lower limb, distal lower limb, axial; proximal lower limb atrophy; no contractures; no scapular winging; no scoliosis; serum creatine kinase 4310 U/L; muscle biopsy myopathic, dystrophic; involvement of gluteus maximus, adductor magnus, obturatorius externeus, hamstring, adductor, rectus femoris, tibialis anterior and gastrocnemius externus muscles; EMG myopathic |