Start standing with your feet shoulder-width apart.
Inhale, and carefully take a big step forward with your left foot, coming into a lunge. Bend both knees to approximately 90 degrees, ensuring your weight is evenly distributed between both legs. Your front knee should be over your ankle and your back knee hovering just off the floor.
Exhale to step the left foot back to meet the right foot, returning to starting position.
Inhale, and repeat with the right foot, stepping forward into a lunge, and then back to standing.