Set-up: Set up with your hands slightly wider than shoulder width on sliders. With the toes together and hips up, establish proper upper body posture with a neutral back.
Movement: In complete control, lower your chest to the floor while sliding one arm out to the side while the other arm follows a basic pushup pattern. Return to the start position along the same path, then repeat with the other arm. This counts as one rep.
Emphasis: Don't allow the hips or the lower back to sag. If the exercise is too challenging or you lose stability as range increases, stop the movement and switch to an easier variant.