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What are the alternative methods of eliciting Plantar response

Alternative methods are useful because of enlargement of receptive field. These alternative methods are especially useful in sensitive patients and children.
They are the following.
1. Chaddocks sign
2. Oppenheim'ssign
3. Gordon's sign
4. Schaefer's sign
5. Bingsign

Chaddock's Sign
Plantar response is elicited by stroking around the lateral malleolus
Oppenheim's sign
Done by stimulating the anterior border of tibia downwards
Gordon's Sign
On applying pressure on the calf muscle plantar response may be elicited
Schaefers Sign
Elicited by applying pressure on the tendo Achilles.
Bing Sign
Pricking the dorsum of foot with a pin can produce plantar response