Plant both feet on the floor shoulder-width apart. Bend at your hips, and while keeping your legs as straight as possible, place your hands on the floor directly in front of your feet. This is your starting position.
Inhale, and without moving your feet, walk your hands forward until your body is in one straight line from your head to your heels, resting on the balls of your feet, ensuring that your legs remain as straight as possible.
Exhale, and without moving your feet, walk your hands back to return to the starting position, once again ensuring that your legs remain as straight as possible.
Repeat for 50 seconds, then take 10 seconds of rest.