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A transient, poorly synchronized, prolonged twitch-like contraction of the group of taut band fibers that is associated with a myofascial trigger point, MTrP. The response is a polysynaptic spinal reflex with its afferent limb commonly arising from mechanical stimulation of sensitized nociceptors in the trigger point, and the efferent limb begins as an activation of alpha motor neurons that supply the involved nerve terminals of taut band fibers in the same or sometimes in functionally related muscles. It can be easily elicited when the needle tip encounters a sensitive locus in the MTrP region during high-pressure stimulation.
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© 2013 Springer-Verlag Berlin Heidelberg
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(2013). Local Twitch Response. In: Gebhart, G.F., Schmidt, R.F. (eds) Encyclopedia of Pain. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28753-4_201182
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DOI: https://doi.org/10.1007/978-3-642-28753-4_201182
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-28752-7
Online ISBN: 978-3-642-28753-4
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