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.

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Torticollis, also known as "wry neck," is a condition where the sternocleidomastoid muscle is shortened, leading to a tilted and turned head. This condition has seen an increase in infants due to the recommendation of placing infants on their backs to sleep to prevent Sudden Infant Death Syndrome (SIDS), which can result in less movement and flexibility in the neck muscles if the baby's head position is not varied.

This Type of Muscular Dystrophy Has Increased in Infants Since