Gross Motor Development features (6)
PED Milestones - month 3
PED Milestones - months 3-4
PED Milestones - months 5-6
PED Milestones - months 6-7
PED Milestones - months 9-10
PED Milestones - months 10-15
What is crawling?
arm crawl, on belly
What is creeping?
Quadruped locomotion
Flexor Withdrawal Stimulus/Response
Noxious stimulus (pinprick) to sole of foot
Toes extend, foot dorsiflexes, LE flexes unconrollably
Crossed Extension Stimulus/Response
Noxious stimulus to ball of foot of LE fixed in extension
Opposite LE flexes, then adducts and extends
Rooting Stimulus/Response
Stroking the side of the baby’s cheek
Head turns toward stimulus and mouth opens
Traction Stimulus/Response
Grasp forearm and pull up from supine into sitting position
Grasp and total flexion of the UE
Asymmetrical Tonic Neck Reflex (ATNR) Stimulus/Response
Rotation of the head to one side
Flexion of skull limbs, extension of the jaw limbs, “bow and arrow” posture
Flexor Withdrawal Onset
28 weeks gestation
Flexor Withdrawal Integrated
1-2 months
Cross Extension Onset
28 weeks gestation
Cross Extension Integrated
1-2 months
Rooting Onset
28 weeks gestation
Rooting Integrated
3 months
Traction Onset
28 weeks gestation
Traction Integrated
2-5 months
ATNR Onset
Birth
ATNR integrated
4-6 months