ad707a50__Tips___Sharkwatch___Shark_com__Muscles_Addressed
[Nautilus Exercise] Abdominal curl [Effect on Golf Swing] Force transfer-lower to upper body [Dumbbell Exercise] Trunk curl (bodyweight) [Muscles Addressed] 
Rectus abdominis
Strength for Maximum Distance & Control - Greg Norman's Fitness Tips - Sharkwatch - Shark.com
Muscles Addressed