Course of neuromuscular and neurological disease
| Rapidly progressive | Variable progression | Slowly progressive or nonprogressive |
| Motor neurone disease/ALS | Limb girdle MD | Previous poliomyelitis |
| DMD (in teenage years) | Myopathies | Facio scapulo humeral MD |
| Nemaline | Type III SMA | |
| Metabolic | Central hypoventilation | |
| Merosin negative congenital muscular dystrophy | Spinal cord injury |
ALS: amyotrophic lateral sclerosis
DMD: Duchenne muscular dystrophy
SMA: spinal muscular abrophy
MD: muscular dystrophy