Autosomal recessive limb-girdle muscular dystrophy type 2J (LGMD2J) is a form of limb-girdle muscular dystrophy that usually has a childhood onset (but can range from the first to third decade of life) of severe progressive proximal weakness, eventually involving the distal muscles. Some patients may remain ambulatory but most are wheelchair dependant 20 years after onset. The disease is autosomal recessive limb-girdle muscular dystrophy type 2J (MONDO_0012127). Also known as: LGMD2J, TTN autosomal recessive limb-girdle muscular dystrophy, autosomal recessive limb-girdle muscular dystrophy caused by mutation in TTN, muscular dystrophy, limb-girdle, autosomal recessive 10, muscular dystrophy, limb-girdle, type 2J.