Supine

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Observations

• Wide movements of arms

• Recoil with passive extension

• Rhythmic kicking when active

Atypical Development

• Strong extension, minimal physiological flexion

• No flexor recoil

• Marked hypotonia

• No lower extremity kicking

Prone

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Observations

• Able to briefly lift head

• Elbows behind shoulders

Atypical Development

• Strong extension, minimal physiological flexion

• No flexor recoil

• Marked hypotonia

• No lower extremity kicking

Pull to Sit

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Observations

• Head lag

Atypical Development

• Strong extension

Supported Sitting

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Observations

• Head lag

Atypical Development

• Strong extension