Ok, so most people think situps are the way to improve abdominals. Well, most people would be incorrect! Situps encourage a deep muscle within the hip and pelvis, the psoas (which attaches to the front part of the vertebrae in the low back) to work. That muscle causes your butt to stick out and your abs to fall forward… especially at address. There are many different ways of engaging both the obliques and the transverse abdominals at address. If they are not engaged, your swing center will bob and ooops, there goes your drive. Specifically working those groups in a golf specific manner will improve not only your drive, but how you look performing the drive!