Plantar reflex downward (Normal)
Plantar reflex inverted (Babinski sign)
Test properties: Sens 35, Spec 77, LR+ 1.5, LR- 0.8
Babinski sign
- Babinski sign, damage in the pyramidal tracts causes a pure spinal reflex to be triggered
- The big toe slowly bends upward and the toes fan out
- Normal phenomenon in children up to 2 years of age