Peds Responses

What response does flexor withdrawal demonstrate?

• Opposite LE flexes, then adducts and extends
• Maintained flexion of fingers or toes
• Toes extend, foot dorsiflexes, entire leg flexes uncontrollably
• Arms or legs extend and abduct to support and protect the body

What response does crossed extension demonstrate?

• Extension, abduction of upper extremities, hand opening and  crying followed by flexion, adduction of arms across chest
• With head flexion: flexion of arms, extension of legs; with head  extension: extension of arms, flexion of legs. 
• Opposite LE flexes, then adducts and extends
• Rigid extension (co-contraction) of the LEs

What response does traction demonstrate?

• Sudden extension or abduction of arms, crying
• With prone position: increased flexor tone/flexion of all limbs; with supine: increased tone/extension of all limbs. 
• Curvature of the trunk toward the upward side along with extension abduction of the extremities on the same side; PE on the opp side 
• Grasp and total flexion of the extremity

What response does Moro demonstrate?

• Extension, abduction of upper extremities, hand opening and  crying followed by flexion, adduction of arms across chest.
• Flexion of skull limbs, extension of the jaw limbs, "bow and arrow" or "fencing" posture
• With prone position: increased flexor tone/flexion of all limbs;  with supine: increased tone/extension of all limbs.
• Body rotates as a whole (log rolls) to align the body with the head

What response does startle demonstrate?

• Body rotates as a whole (log rolls) to align the body with the head
• Arms or legs extend and abduct to support and protect the body
• Sudden extension or abduction of arms, crying
• Body segment not rotated follows to align the body segments

What response does grasp demonstrate?

• With head flexion: flexion of arms, extension of legs; with head  extension: extension of arms, flexion of legs.
• Involuntary movement in a resting extremity
• Maintained flexion of fingers or toes
• Head orients to vertical position with mouth horizontal 

What response does Asymm.
tonic neck (ATNR) demonstrate?

• With head flexion: flexion of arms, extension of legs; with head  extension: extension of arms, flexion of legs. 
• Rigid extension (co-contraction) of the LEs
• Head orients to vertical position with mouth horizontal
• Flexion of skull limbs, extension of the jaw limbs, "bow and arrow" or "fencing" posture 

What response does 
Symm. tonic neck (STNR) demonstrate?

• With prone position: increased flexor tone/flexion of all limbs;  with supine: increased tone/extension of all limbs.
• With head flexion: flexion of arms, extension of legs; with head extension: extension of arms, flexion of legs
• Head orients to vertical position with mouth horizontal
• Arms or legs extend and abduct to support and protect the body

What response does 
Symm. tonic labyrinthine (TLR or STLR) demonstrate?

• With prone position: increased flexor tone/flexion of all limbs;  with supine: increased tone/extension of all limbs.
• Head orients to vertical position with mouth horizontal
• Flexion of skull limbs, extension of the jaw limbs, "bow and arrow" or "fencing" posture 
• Body rotates as a whole (log rolls) to align the body with the head

What response does 
Positive supporting demonstrate?

• Involuntary movement in a resting extremity
• Maintained flexion of fingers or toes
• Rigid extension (co-contraction) of the LEs
• Curvature of the trunk toward the upward side along with extension abduction of the extremities on the same side; PE on the opp side