In this special edition of B Built by Broser, we're joined by IFBB Pro Abbas Khatami! Today, the men talk about how you can take an exercise, and with one subtle change, completely change which muscles are working, and which fibers are firing. They demonstrate how to change the dumbbell preacher curl, the lat pulldown, and the leg press in order to make the exercise work different muscles. Get more out of your workouts by following Eric's unique variations!