Which of the following joints are extended in the second pull of the power clean?

In the second pull of the power clean, the hip, back, and shoulder joints experience extension, which is crucial for generating power and initiating the upward movement of the barbell. During this phase, the lifter typically transitions from a deep squat position to a more upright posture, effectively utilizing the force generated from the hips and legs.

The hip joint extends as the lifter drives up, transferring energy from the legs through the hips and into the shoulders. Simultaneously, the back is involved in maintaining proper posture and stability while also extending to help keep the bar close to the body. The shoulders assist in this upward motion without directly extending but are positioned to support the elevated position of the arms.

Understanding the mechanics of the power clean is essential for optimizing performance and ensuring safety during the lift. This focus on extending the hip, back, and shoulder joints, rather than ankle or knee joints, highlights the key movements needed to effectively perform this explosive exercise.