| Phenotype details |
almost asymptomatic, lower lower limbs, atrophy harmstrings/quadriceps, muscle weakness biceps femorii; calf pseudo hypertrophy, no cramps, no myalgia, myoglobinuria, no cardiac involvement, no respiratory involvement; EMG myopatic; raised CPK (HP:0003236) 15-31x; >43y walking (-HP:0006957) |