Answer. Kegel exercises, also known as pelvic exercises, have been shown to be effective in treating erectile dysfunction and should be used as the first-line treatment. When in an erection, the ischiocavernosus as well as bulbocavernosus muscles in the pelvic region contract to surround the penis.The Bulbocavernosus muscle, often known as the Bulbospongiosus muscle, is a perineum muscle between the anus as well as the genitals. It surrounds the bulb of the penis (the enlarged inner end of the structure that surrounds the urethra) in males and can be contracted to expel the last drops of urine or sperm.