All of the following are associated with proximal muscle weakness except –

The general rule in that : Myopathies have proximal muscle weakness. Neuropathies have distal muscle weakness. Myotonic dystrophy is an exception to this general rule and mainly involves the distal muscles. Also, know The difference between myopathy and muscular dystrophy. Myopathy Any skeletal muscle disorder that causes structural changes or functional impairment of muscle. It also includes muscular dystrophies. Muscular dystrophy The muscular dystrophy means an abnormal growth of muscle. It is characterized by - It is a primary myopathy  It has a genetic basis  Course is progressive    Degeneration & Death of muscle fibres occur at some stage of the disease       So, muscular dystrophy is a type of myopathy.