Modified V-Up

Lie down faceup on an exercise mat with legs and arms straight.
Raise your torso and knees so that your body forms a V-shape. Place your fingers on your temples so that your elbows are pointing forward. This is the starting position.
Begin exercise by slowly lowering your torso down toward the floor, while simultaneously straightening out your legs so that they are only a few inches off the ground.
Pause for a brief moment, then raise back up to starting position. This completes one rep

Reverse the movement, keeping your arms extended above your head throughout. Don't return your feet to the floor until the work period is over.