Bicycle and Rotate
Lie on back with hands behind head and heels just off floor
Bring right elbow and left knee together at midline of body
Extend left leg, and bring left elbow and right elbow together
Repeat continuously in alternating fashion for specified reps
Sets/Duration: 1x45 seconds
Durkin: Studies show that this movement is one of the best exercises for activating the rectus abdominis and obliques. Keep your elbows back and head up, don’t get into "neck crunching."