Amyotonia is characterized by "floppy" muscles that lack the normal tension required for movement and posture.
Infants with amyotonia often appear limp, have difficulty holding their heads up, and may show a "frog-leg" posture when lying on their backs. amyotonia
Most cases historically labeled as "amyotonia congenita" are now recognized as Spinal Muscular Atrophy Type 1 (Werdnig-Hoffmann disease). 2. Common Causes Amyotonia is characterized by "floppy" muscles that lack