Many athletes have issues with the front rack position – most notably, being unable to keep your elbows high during heavier reps of the front squat or clean. High elbows means a better shoulder shelf for the bar, as well as a taller, prouder chest. Together, these two things make any rep much easier to complete as it stacks the musculature of the body upon itself, allowing you to support more weight. Once the elbows drop, we lose this rigidity and our ability to support heavy loads.
If you are having trouble getting your elbows up to that perpendicular position, add this quick band stretch after your warm-up and prior to your work sets any time your are utilizing the front rack in a lift.