A lunge is a lower-body exercise that works your quads, glutes, and hamstrings. Adding a dumbbell to the lunge can increase the challenge and the benefits. Here are the steps to perform a lunge with a dumbbell:
Hold a dumbbell in each hand and stand with your feet shoulder-width apart.
Take a big step forward with your right leg and lower your body until your right thigh is parallel to the floor and your left knee is almost touching the ground. Keep your torso upright and your core engaged.
Push yourself back to the starting position by driving through your right heel.
Repeat with your left leg and alternate sides for the desired number of reps.