Table 1

The Cardinal Signs of a Trigger Point (adapted from Simons, Travell and Simons [1]).

Cardinal Signs of a Trigger Point

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Presence of a taut band in the target muscle
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A nodular point of tenderness
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A jump sign: Patient reacts to the application of digital pressure to the taut band or nodular point
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Referral of pain on the application of pressure to the taut band or nodule

Bablis et al. Chiropractic & Osteopathy 2008 16:4   doi:10.1186/1746-1340-16-4