One of the more complex movements to master and feel safe doing is the overhead Olympic lifts. In Olympic weightlifting, the Snatch and Clean & Jerk force the lifter to end with a substantial amount of weight perfectly balanced overhead for several seconds until judges signal them to lower it to the ground. Meanwhile, in Crossfit, the athletes perform the above exercises, along with movements such as overhead squats, thrusters, and/or overhead walking lunges with much higher volume in what is referred to as cycling the bar.