In Olympic lifts, what does "full extension" refer to?

Full extension in Olympic lifts refers to the complete straightening and alignment of the hips, knees, and ankles during the lift. This is crucial because it represents the moment when the athlete has maximized their vertical thrust, which allows for optimal force transfer to the barbell. Achieving full extension is vital for generating the power needed to lift heavy weights, as it enables the lifter to engage their entire body effectively.

When an athlete reaches full extension, they create a strong position from which to transition into the next phase of the lift, whether it be the clean, snatch, or jerk. This position also helps ensure proper technique, maximizing efficiency and reducing the risk of injury, as improper extension can lead to poor lifting mechanics or imbalances.

Other options describe elements of the lifting process but do not encompass the complete physiological action of full extension as defined in Olympic lifting. For example, merely straightening the knees or raising the bar above the head does not capture the multi-joint involvement required for effective power generation in Olympic lifts.