Stand with your feet hip-distance apart. Hold a dumbbell in each hand by your sides.
Step your right foot behind you, lowering your right knee to just above the floor so both knees are at 90-degree angles. Keep your bodyweight centreed between both legs and don't allow your front knee to push over your front toe.
Step your right foot back to the front. Perform a reverse lunge with the left foot and step it back to the front. This complete one rep.