Lower-extremity paralysis combined with low tone and poor head control most commonly results in which motor outcome?

Lower-extremity paralysis combined with low tone and poor head control most commonly results in which motor outcome?

• A. Gross motor movement becomes difficult
• B. Increased gross motor performance
• C. Normal motor development
• D. Early walking readiness

Answer: (A)

Lower-extremity paralysis with low tone and poor head control points to broad motor impairment that disrupts the ability to perform large muscle movements. Gross motor skills rely on adequate leg strength and stable trunk/head control to stand, sit, and move, so when the legs can’t move and the muscles are hypotonic, activating and coordinating those large movements becomes difficult. The other options don’t fit because increased gross motor performance contradicts the evident weakness and low tone, normal motor development is unlikely given the paralysis and hypotonia, and early walking readiness isn’t plausible without functional leg movement and sufficient trunk/neck control.

Lower-extremity paralysis with low tone and poor head control points to broad motor impairment that disrupts the ability to perform large muscle movements. Gross motor skills rely on adequate leg strength and stable trunk/head control to stand, sit, and move, so when the legs can’t move and the muscles are hypotonic, activating and coordinating those large movements becomes difficult. The other options don’t fit because increased gross motor performance contradicts the evident weakness and low tone, normal motor development is unlikely given the paralysis and hypotonia, and early walking readiness isn’t plausible without functional leg movement and sufficient trunk/neck control.