There's the one above and kegals should be in your repertoire, One of the things that my GYN said about the problems with your pelvic floor and lifting have to do with mostly using your upper body and core and lower back causing stress in your PF (and rest of your body.) But like any good lifter, I'm using my butt and legs to lift and saw a great link talking about the wonders of the low squat WRT the pelvic floor. Even if you aren't squatting a barbell, the ass to grass action is doing wonders for your posterior chain, provided your posture is right, etc. So work on those anyway - that's what's going to keep you from needing help using a toilet when you're old.