Quote Originally Posted by Belt Up View Post
How do women get that Action Man style groove on the inside of the hip?
That groove is more commonly called "Apollo's/Adonis's Belt", "Iliac Furrow", or "Inguinal Crease". Supposedly, it can be encouraged by strengthening the transversus abdominus muscle (abdominal vacuums). Here's some more info: How to: adonis belt - Bodybuilding.com Forums