 Srbely et al. found that one intervention of trigger point stimulation with DN evoked palliative effects in other areas innervated by the same spinal segment. They dry needled trigger points in the supraspinatus and assessed pressure sensitivity changes in the infraspinatus same segment, C5 and gluteus maximus different segment, L45, S1. Their results suggest that pain pressure threshold was increased after 3 and 5 minutes of DN in the areas supplied by the C5 segment, but not in the area supplied by L45, S1. 