Official Website of Linda LaRue Crunchless Abs Target All The Core Muscles
No reason anymore to do endless sit-ups for the abs.  With Linda LaRue’s Crunchless Abs, ab workout dvds, you exercise the twelve muscles that make up the core abs.  Sit-ups and crunches only work two of the muscles.  They don’t target the core abs, Linda LaRue’s Crunchless Abs actually target all the core muscles in the abdominal area so there is no reason to do endless crunches anymore.  With LaRue’s system you get and build more muscles and less fat.  Linda LaRue’s unique exercise method of core training, focuses on each core muscle like a laser, targeting your upper abs, those hard to reach deep lower abs, your left and right side obliques that wrap around your lower back. 
“Systematically training each muscle in your core is like weaving the stitching arount your abdominal girdle, because everything pulls in tight!”