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Pediatric Reflexes -

Primitive Reflex/Spinal Reflex Flexor withdrawal, crossed extension, traction, moro, startle, grasp
Tonic/Brainstem Reflexes ATNR, STNR, symmetrical tonic labyrinthine, positive supporting, associated rxns
Midbrain/Cortical Reflexes NOB, BOB, LR, OR, BOH, protective extension, equilibrium rxns (tilting), equilibrium rxns (postural fixation)
Flexor Withdrawal Noxious Stimulus to sole of foot. Tested in supine or sitting.
Flexor Withdrawal Toes extend, foot dorsiflexes, leg flexes uncontrollably.
Flexor Withdrawal Onset: 28 wks gestation Integrated: 1-2 mths
Crossed extension Noxious stimulus to ball of foot of extremity in extension; tested in supine.
Crossed extension Opposite lower extremity flexes, then adducts and extends.
Crossed extension Onset: 28 wks gestation Integrated: 1-2 mths
Traction Grasp forearm and pull up from supine to sitting.
Traction Grasp and total flexion of the upper extremity
Traction Onset: 28 wks gestation Integrated: 2-5 months
Moro Drop pt. backward from sitting position
Moro Extension, abduction of UE, hand opening, and crying followed by flexion, adduction of arms across chest
Moro Onset: 28 wks Integration: 5-6 months
Startle Sudden loud or harsh noise
Startle Sudden ext or abd of arms, crying
Startle Onset: birth Integrated: persists
Grasp Pressure to palm of hand or ball of foot
Grasp Maintained flexion of fingers or toes
Grasp Onset: birth (palmar); 28 wks gestation (plantar) Integration: palmer (4-6 mths); plantar (9 mths)
ATNR Rotation of the head to one side
ATNR fencing posture
ATNR Onset: birth Integration: 4-6 mths
STNR Flexion or ext of head
STNR With head flexion, flexion of arms, extension of legs. Opposite for extension.
STNR Onset: 4-6 mths Integration: 8-12 mths
STLR Prone or supine
STLR Prone: increased flexion of all limbs. Supine: opposite.
STLR Onset: birth Integration: 6 mths
Positive supporting Contact to ball of foot in standing
Positive supporting Rigid extension of LE
PS Onset: birth Integrated: 6 mths
Associated Rxns Resisted voluntary mvmt in any part of the body
Associated Rxns Involuntary mvmt in a resting extremity
Associated Rxns Onset: birth to 3 mths Integrated: 8-9 yrs
NOB Pasively turn head to one side; supine
NOB Body rotates as a whole to align body w/ head Onset: 4-6 mths Integrated: 5 yrs
BOB Passively rotate upper or lower trunk segment; supine
BOB Body segment not rotated follows to align the body segmetns Onset: 4-6 mths Integrated: 5 yrs
LR Occlude vision; tip body in all directions
LR Head orients to vertical postion Onset: birth to 2 months Integrated: persists
OR Alter body position by tipping body in all directions
OR Head orients to vertical Onset: birth - 2 mths Integrated: persists
BOH Place in prone or supine
BOH Head orients to vertical positon. Onset: birth - 2mths Integrated: 5 yrs
Protective Ext Displace center of gravity outside BOS
Protective Ext Arms or legs extend and abduct to support and to protect the body against falling Onset: arms 4-6 mths; legs 6-9 mths Integration: persists
ER (tilting) Displace center of gravity by tilting or moving the support surface
ER (tilting) Curvature of trunk toward upward side along w/ ext and abd of the extremtiies on that side; protective ext on opposite side Onset: prone 6 mths; supine 7-8 mths; sitting 7-8 mths; quadruped 9-12 mths; standing 12-21 mths; integrated: persists
ER (postural fixation) Apply displacing force to body, altering center of gravity in its relation to BOS; can be observed druing voluntary activity
ER (postural fixation) Curvature of trunk toward force w/ ext and abd of extremities on that side Onset: prone 6 mths; supine and sitting 7-8 mths; quadruped 9-12 mths; standing 12-21 mths Integrated: persists
Created by: smirfa