Kegel exercises can help strengthen your pelvic floor muscles. The part of the body that includes the hip bone is the pelvic region. The pelvic floor muscles are at the bottom of this area (pelvic floor), the muscles between the legs, and the part that can be closed with a tampon. These muscles are important for supporting the bladder, uterus (womb), and rectum. These muscles prevent urination and defecation. (bowel movement) leaking These muscles also perform important functions during sex.