Start in a high plank with your palms flat, hands shoulder-width apart, shoulders stacked directly above your wrists, legs extended behind you, and your core and glutes engaged. Place your feet hip-width apart.
Step your left foot forward to where your left hand is, getting into a lunge position. Simultaneously lift your left hand off the floor and reach it up toward the ceiling as you rotate your torso open to the left. Only rotate as far as feels comfortable. If rotating at all feels uncomfortable, take that part out of it completely.
Place your hand back down and step your foot back to plank position.