Limb girdle muscular dystrophies (LGMD) as defined by the European Neuromuscular Centre in 2018.
[1][2] They are named by the following system: LGMD, recessive or dominant inheritance (R or D), order of discovery (number), affected protein.
[1] Distal muscular dystrophy, also called distal myopathy, is essentially any muscle disease that preferentially affects the hands and/or feet, a much less common pattern than proximal muscle weakness.
Myofibrillar myopathies are diseases that cause similar findings of affected muscle when viewed under a microscope.
[4] Mitochondrial myopathies are diseases caused by mutations related to mitochondria, and thus are generally inherited from the mother with variable expressivity due to heteroplasmy.