Most patients begin to use a wheelchair for movement around age 30–40. Death usually occurs in their 60s, but some have been reported to live longer.
Autosomal recessive spastic ataxia of Charlevoix-Saguenay
Spinal muscular atrophy with lower extremity predominance 1
Spinal muscular atrophy with lower extremity predominance 2A
Autosomal recessive cerebellar ataxia type 1
Jokela type spinal muscular atrophy
Madras motor neuron disease
Spinal muscular atrophy with lower extremity predominance 2B
X-linked spinal muscular atrophy type 2