Correct instruction of Pilates always incorporates and awareness of the pelvic floor musculature. Strengthening this area directly and indirectly (via fascial continuations of the adductors and TA) will no doubt have a positive effect on this issue.
In fact, I have had clients come to the studio specifically to address this.
Thanks so much for sharing Naomi. I can’t tell you how women AND men that I’ve worked with who have suffered with this. Many women have been falsely led to believe that this is just something that they should live with. Although, I have not experienced this condition myself, I have watched my clients (I incorporate pilates into all of my training sessions) regain control of their lives through pilates.