This type of muscular dystrophy has increased in infants since they are now placed on their backs to prevent SIDS.The sternocleidomastoid muscle shortens due to the position.

A) torticollis
B) Duchenne's
C) Erb's
D) juvenile

Torticollis

A condition also known as "wry neck," characterized by a twisted or tilted neck due to shortened or spasmodic neck muscles.

SIDS

Sudden Infant Death Syndrome, an unexplained death, usually during sleep, of a seemingly healthy baby less than a year old.

Duchenne's

A genetic disorder characterized by progressive muscle degeneration and weakness due to the alterations of a protein called dystrophin that helps keep muscle cells intact.