Method for Reflex Threshold Estimation in Spastic Muscles
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Aug 31, 2011
filing date -
Aug 31, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method is provided for measuring a spasticity of a muscle, comprising indenting a tapper at a particular distance into the skin, tapping a tendon associated with a muscle, and measuring the force response within a response time window. If a spastic response is detected at a particular position of the tapper according to some predefined criteria associated with the force measure, then either the position or a preload force is recorded at the first position to produce a spastic response. This determination can be used for various medical diagnoses. Furthermore, passive muscle properties can be determined by calculating a muscle stiffness value based on a line slope at at least one of the first and second indentation positions based on the maximum tapping force value at the respective indentation position.
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