Efectos sobre la tensión neural adversa medida mediante test de Slump tras punción seca de punto gatillo miofascial del músculo gastrocnemio

Abstract

ObjectiveTo determine the effect of dry needling (DN) in the myofascial trigger points (MTrP) of the gastrocnemius muscle on adverse neural tension (ANT) and perceived pain. Material and methods50 adults were selected for the study. After applying inclusion and exclusion criteria, we obtained a final sample of 45. They were randomly assigned to group 1 or experimental (n=23, mean age: 22.41±1.53) and group 2 or control (n=22, mean age: 21.15±1.34). Once allocated and confirmed by the blind assessor, deep dry needling technique on the MTrP was applied. For group 2 the same needle was used, differing in shrinkage capacity therefore without perforating the skin. The ANT was assessed using the Slump neurodynamic test and perceived pain by visual analogue scale (VAS) just before (pre-test) and in two subsequent times (immediately and 48hours). The data were processed with SPSS version 19.0. ResultsWe observed statistically significant differences (P<.05) in group 1 between pretest and immediate posttest and between immediate and delayed post-test (48hours) for the variable ANT. The perceived pain showed statistically significant differences between the pretest and the two later time points (P<.001), while group 2 showed no improvement. Differences between groups were observed in the immediate posttest perceived pain. ConclusionsThe dry needling in the MTrP latent on gastrocnemius muscle decreases perceived pain at least 48hours, not getting on the ANT significant changes measured by Slump test.