Cathy is performing this exercise as a finisher, having done two chest exercises prior. Notice her feet are on the ground, and the bar is started at the lowest point on the machine. For the order of the exercises and her abilities this is a perfect set-up. If you're not strong in this exercise, as some aren't, you can start higher on the machine. The higher the angle, the lighter the load. Conversely, if your strong in this movement, you can perform the exercise with chains around your neck for added load. Always remember to never sacrifice form.