The Kroc row utilizes “purposeful body movements,” which allow you to perform more reps than you’d be able to with a classic single-arm dumbbell row that uses strict technique.

Take the renegade row, for example. It combines a basic pushup with a one-arm dumbbell row to create a brutally effective move that builds serious upper-body strength.

Bodybuilding legend and four-time Mr. Olympia Jay Cutler broke down three of the most common one-arm dumbbell row mistakes to ...