Stand tall with your feet hip-width distance apart. Hold a dumbbell in each hand at your sides.
Step forward with your right foot as you bend your elbows in a bicep curl. Lower your hips until both knees are bent at about a 90-degree angle. Keep your front knee directly above your ankle, and lower your left knee to just tap the floor.
Keep the weight in your heels as you push back to the starting position, completing one rep.