2. Reverse Lunges

Reverse Lunges Stand with your feet together, arms by your sides, holding dumbbells. Take a wide step back with your left foot and lower into a lunge, bending both knees about 90 degrees. (Try to bring your right thigh parallel to the floor.) Keep your torso upright. Step the left foot forward, and return to standing with both feet together. Do 20 alternating reps.