Origin: Anc Greek
δυσ-/dys-(=with a negative sense meaning difficult, bad, abnormal, misfortune) > δύω/dyo(=to decline) δύση/dysi(=sundown)
Because in dystrophies the muscle seems to have defective nutrition.
|Guillaume-Benjamin-Amand Duchenne (de Boulogne)|
(1806 - 1875)
In general dystrophy means any degenerative disorder, especially muscular dystrophy, caused by inadequate nutrition. There are more than 20 specific genetic disorders considered to be Muscular Dystrophy due to a reduction in muscle strength .