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MOTOR MILESTONE
MOTOR MILESTONE AQUISITION IN TYPICAL FULL-TERM INFANT
| Question | Answer |
|---|---|
| Physiologic flexion | Birth |
| Turns head to side in prone | Birth |
| Attempts to lift head in midline | 1–2 mo |
| Automatic stepping | Birth |
| Fencer’s posture | 1–4 mo |
| Astasia | 2 mo |
| Abasia | 2 mo |
| Rolling supine to side-lying nonsegmentally | 2–4 mo |
| Beginning midline head control | 2–3 mo |
| Prone-on-elbows, head to 90°, chin tuck | 3–5 mo |
| Hands to midline | 3–5 mo |
| Unilateral reaching prone-on-elbows | 4–6 mo |
| Prone-on-extended-arms | 4–6 mo |
| Pivot prone posture | 4–6 mo |
| Beginning intra-axial rotation | 4–5 mo |
| Rolling prone to supine, segmentally | 4–6 mo |
| Head lifting in supine | 4–6 mo |
| Supine, hands to knees and feet | 4–6 mo |
| Supine, hands to feet | 4–6 mo |
| Supine, feet to mouth | 4–6 mo |
| Propped sitting | 5–6 mo |
| Supine bridging | 5–7 mo |
| Rolling supine to prone, segmentally | 5–7 mo |
| Ring sitting unsupported with trunk extension and high guard | 5–7 mo |
| Transferring objects hand to hand | 5–7 mo |
| Independent sitting with secondary curves | 7–9 mo |
| Beginning quadruped | 7–9 mo |
| Beginning pull-to-standing | 7–9 mo |
| Creeping | 9–11 mo |
| Plantigrade posture | 10–12 mo |
| Plantigrade creeping | 10–12 mo |
| Pulls to standing and lowers self | 9–12 mo |
| Cruising | 9–11 mo |
| Pulls to standing through half-kneeling | 10–13 mo |
| Walking independently | 10–15 mo |
| Creeps up stairs | 14–18 mo |
| Walks up stairs with help or handrail | 16–20 mo |