Russian Twist

Boat Exercise

One leg plank

Scissors Exercise

Elbow to knee Crunches

Mountain Climbers

Cross-Body Mountain Climbers

Walk the Plank and rotate

Hip Raise

Reverse Crunches

Side leg Toe-Touch Crunch

V Crunch

Plank to Push-up

Warrior Balance

Perform each exercise for thirty seconds before moving to the next. I can definatly see a difference and I have only been doing this circuit for two weeks three times a week.