Onset: 4-6 months

Integration: 8-12 months

Test Position: Quadruped or prone over examiner's lap

Stimulus: Head flexed or extended

Response: Head flexed: upper extremities flexed and lower extremities extended. Head extended: upper extremities extended and lower extremities flexed.

Significance: The integration of STNR is seen when the child can lift the buttocks from the heels without flexing the head and upper limbs. If strong, it may prevent reciprocal creeping. This reflex may interfere with the ability to prop on forearms in prone position, attaining and maintaining quadruped position, creeping reciprocally, sitting balance when looking around, and the ability to look at an object in hand.