The Influence of Expectations on Post-needling Soreness and Pain Processing After Dry Needling Treatment

"Deep dry needling procedure~All subjects received a deep dry neddling technique on a latent myofascial trigger point of the upper trapezius muscle by isolating it by a pincer grasp with the thumb and index finger. This myofascial trigger point was previously found following the diagnostic criteria described by Travell \& Simons and Fernández-de-las-Peñas et al., and the deep dry needling intervention applied was based on the technique described by Hong.~The patients were placed in a prone position. Prior to the technique, the area was disinfected with an antiseptic solution. Fifteen incisions were made with a 0.26x40mm monofilament needle. The number of local twitch response made were noted. After removing the needle, at the end a soft compression was made with a cotton to reduce the possible appearance of bleeding."