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Neonate
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Meonatal reciprocal stepping with upper body supported; legs display
positive support reaction when upper body supported
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7 - 10 weeks
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Neonatal stepping disappears
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Birth - 3 months
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Quadrupedal extremity efforts, sometimes reciprocal that contributes to
position changes when placed prone on a firm surface
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3 - 7 months
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Pivot prone rotation; infant elevates and rotates upper body in a circular fashion
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5 - 7 months
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Sequential rolling may be utilized by some infant to move
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5 - 7 months
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Commando crawling with the infant advancing trunk forward primarily with
arms is present in many infants
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7 - 9 month
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Variety of pre-walking locomotor patterns may be observed including bottom
scooting, creeping, crawling
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8 - 11 months
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Supported sidestepping and furniture cruising; some infants may walk without support
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12 months
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Independent walking present in most infants characterized by short, uneven
steps, wide base of support, absence of knee wave during stance, high guard
arm position, and many falls
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18 months
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Heel strike replaces flat foot or forefoot at initial contact; reciprocal arm swing
present in about half of all children
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2 years
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Knee flexion wave consistently present during stance phase; most children can run
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2 years, 6 months
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Majority of children can toe-walk, 60% of children can heel walk
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3 years
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Most children can heel walk, mature gait patter present except for increased cadence,
decreased step length
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3 years, 6 months
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Base of support equal to or less than pelvic span
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4 years
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Reciprocal arm swing should be present; majority of children can hop
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