Estudio comparativo sobre la eficacia de las técnicas de thrust y energía muscular en el músculo piriforme

Abstract

Objectives

To assess the results reached in the articular amplitude (goniometry) and the pressure pain threshold (PPT) (algometry) in the myofascial trigger point (MTP), after the application of muscular energy techniques (MET) and thrust techniques (TT), in the piriformis muscle spasm. Assessment of the intra- and interobserver reliability.

Hypothesis

The MET and TT, applied in the piriform muscle provoke an immediate increase in the its extensibility and pain relief in its MTP.

Material and methods

We designed a clinical, randomised, simple blinded and controlled study, including 80 subjects, randomly divided into three groups. The first “intervention group” (n = 28) received the MET, the second “intervention group” (n = 27) received TT, and the “Control Group” (n = 8) received placebo technique. In all groups pressure pain threshold (PPT) (algometry) on piriform MTP was studied, and also pain perception, evidenced on a visual analogue scale (VAS), goniometry of the inner hip rotation, and photogrammetry. We have carried out statistical analysis (Kolmogorov-Smirnov test, CCI, chi-square and ANOVA).

Results

Reliance analysis, intra- and interobserver (p > .05) showed non-significant differences. The statistical analyses performed corroborated the similarity between the groups before intervention. Analysis of the intervention effects reached significant values (P < .05) in all the studied variables, thus confirming the effect of the applied techniques in the “Intervention” groups, and also in the individual cases.

Conclusions

The MET and TT, applied in the piriformis muscle, provoked an immediate increase in its extensibility and pain relief in the pressure of its MTP.