Stand with your feet directly under your hips with your toes pointing straight ahead. Hold a dumbbell with both hands in front of your chest. Inhale to stand tall, and as you exhale, engage your core.
On an inhale, take a large step back with your right foot. Lower your right knee toward the floor and stop when your front thigh is parallel to the ground. Point your front knee forward with your knee over your ankle. You should be in a lunge position.
Hold the lunge, and as you exhale, twist your upper body toward your left thigh. Try to keep your hips facing forward as you rotate from your torso. If this is too difficult, eliminate the twist or don't twist as far.
Inhale to return your upper body back to center. As you exhale, press your front heel into the floor, and step your back foot in as you return to standing. This completes one rep.