Lie face down with your arms reaching forwards in a "T" position, so that they are stretched out to the sides at 90 degrees to your body.
Keep your head slightly elevated and aligned with your spine.
Your hands should be facing palms down with your fingers extended.
Now tighten your abdominal muscles to stabilise your trunk and slowly raise both arms off the floor no higher than 6 inches and hold for the required time, then slowly lower your arms down to the floor.
Repeat for the desired number of repetitions.
Throughout the exercise, your arms should be fully extended and your trunk and legs aligned.
Perform this exercise in a slow controlled manner and do not jerk the body into the up-position when raising the arms.