The influence of pelvis reposition exercises on pelvic floor muscles asymmetry A randomized prospective study

Objective: The assessment of pelvis reposition exercise efficacy in the treatment of pelvic floor muscles (PFM) asymmetry. The hypothesis was that PFM asymmetry may have a functional reason related to lumbopelvic complex misalignment. Design: A parallel group trial with follow-up Methods: Thirty young women were divided into 2 groups: experimental (n=15) and control (n=15). In experimental group one, a 15-minute trial of pelvis reposition exercise was carried out. Ober test, the Thomas test, and transabdominal PFM ultrasound measurements were performed in both groups. Results: In the experimental group both the Ober and Thomas tests were positive at baseline in most subjects. After the exercise, improvement was noted in Ober test (P=.005; d=0.75 on the right side, P=.005; d=0.78 on the left side) and in the Thomas test (P=.005; d=0.66 on the right side, P=.005; d=0.67 on the left side). At baseline, the ultrasonographic evaluation of PFM performed during resting and during voluntary pelvic muscles contraction showed the right-left length asymmetry. The return of symmetrical PFM work after pelvis reposition exercise was observed in the experimental group. There were no statistically significant changes in the control group. s Conclusions: We suggest that after reposition exercises, the pelvis was more symmetrically aligned in relation to body axis; therefore, the muscles of the pelvic floor have functional length and did not shorten or lengthen due to pelvis rotation. In this study, for the first time, it was presented that PFM asymmetry visible in ultrasonography may be corrected by this specific exercise. Further analysis of the causes of this asymmetry may lead to more accurate treatment of PFM dysfunctions.