Discussion
In this study we found no significant differences in the reduction of cases of complete LA avulsion when comparing participants allocated to the PFMT group versus participants allocated to the control group (A search in PubMed revealed no former RCTs on postpartum PFMT with stratified analyses on LA avulsion. Further, RCTs on PFMT in which ultrasonography is used to assess outcome seem sparse. A former RCT [The PFMT intervention in the present study was based on strength training recommendations [However, our results on complete LA avulsion within groups are in contrast to the longitudinal cohort study by Miller at al. [The applied supervised group PFMT program in our RCT may present a limitation, as findings in the parent study [The LA muscle plays an important role in maintaining pelvic floor function; any alteration to the muscle may therefore impact pelvic floor function [Further, we need to target women at risk for decreased ability to contract the PFM after vaginal childbirth [