The trigger point jump sign is an involuntary, reflexive reaction where a patient winces, gasps, or jerks when a painful trigger point is pressed. If you pay close attention, you can see that happen with this patient here This is a classic sign of a trigger point along with the presence of a taut muscle band and referred pain. (Trigger points can manifest as a taught band, it’s not always just a singular knot) The increased acidity and irritation of the muscle fibers stimulates pain receptors, which trigger the pain reflex that results in the "jump sign". Turn your sound on 😂🤣 #massage #asmr #knot #triggerpoint #pain