 There are eight known types of distal muscular dystrophy.They are Welander’s distal myopathy, Finnish (tibial) distal myopathy, Miyoshi distal myopathy, Nonaka distal myopathy, Gowers–Laing distal myopathy, Hereditary inclusion-body myositis type 1, Distal myopathy with vocal cord and pharyngeal weakness, and ZASP-related myopathy.All of these affect different regions of the extremities and can show up as early as 5 years of age to as late as 50 years old.