Holding your back straight when you move is a hard skill to master. But it is the skill that will make you the most efficient, and safest of them all. Getting yourself organized and ready to move and then holding position as you hinge over, squat down, jump, or go overhead is what it is all about. Keep holding tight people, it is the most important part.
Complete six rounds for time of:
5 muscle ups
155 pound hang squat clean, 5 reps
run 200 meters