Step lunge

Stand 2 to 3 feet in front of a step or stair. Hold a dumbbell in each hand, or hands on the hips. Step your left foot forward, planting it onto the step, and bend your knees to lower your body toward the ground. Stop when your left thigh becomes parallel to the step’s surface. Pause, then push through your front heel to return to start position. Repeat, alternating legs.