LAT ("Look at That") is a powerful behavior modification method that works on changing a dog's emotional response. It was first introduced by Leslie McDevitt, a certified dog behavior consultant and certified professional dog trainer. This method was first depicted in her wonderful book Control Unleashed, a book I recommend to many dog owners.

To have well-developed lats, train with horizontal and vertical exercises. A study shows that horizontal pulling workouts such as barbells and dumbbells are as effective as vertical pulling exercises in developing lats. In fact, horizontal pull workouts train lats into various angles and directions, producing more growth than vertical pull.