Boost the upper-body activation of your planks by turning them into a renegade row. With two light- to medium-weight dumbbells, you can work your upper back as well as hit your core with a balance challenge.
- Start in high plank, each hand holding a dumbbell that's resting on the floor. Step your feet out so they are shoulder-width apart or slightly wider.
- Pull your right elbow back, lifting the dumbbell toward your ribs, keeping your right elbow close to your torso. Make sure you're not rotating or shifting your hips; keep your weight centered in both feet.
- Lower the weight to the floor to return to plank, then repeat on the opposite side.
- That's one rep. Do three sets of 10 reps, resting for 30 seconds to one minute between sets.
