Start in Table position (hands and knees), and lower down to the elbows. To set up proper alignment, reach the hands for opposite elbows directly under your shoulders; this is how far apart your elbows should be from one another. Keep your elbows where they are and spiral your forearms forward to interlace your fingers; pinkies press down into the mat.
Engaging your abdominal muscles, step one leg back at a time onto the balls of your feet, just like in Full Plank. You should have a straight line of energy from the crown of your head out through your heels.