V-ups w/ med ball: 3X35
Planks: 3X100 seconds (front and both sides)
Woodchoppers: 3X1 min
1 Leg RDL: 3X1 min
Seated Rotation: 3X50 each side
Body-weight Squats: 3X90 sec
Next stage of my core routine, just about killed me. Planks for 100 seconds is cruel and unusual punishment. Sneezed later in the day and really felt it in my stomach, this is good stuff.