Which of the following is a fault observed in a box jump?

• A. Jump-exceeding height
• B. Maintaining tall posture
• C. Knees aligned with toes
• D. Landing in a relaxed or collapsed position

Answer: (D)

In a box jump, safety and efficiency hinge on how you absorb the landing and stabilize the body for the next rep. You want to land with the core braced, chest up, and joints (ankles, knees, hips) flexed to absorb the impact, then immediately reset for the next jump.

Landing in a relaxed or collapsed position is a fault because it shows a lack of active control during the landing. When the body isn’t braced, the joints don’t absorb load effectively, the knees can cave inward, the hips drop, and the torso may round. This not only increases the risk of injury (such as to the knees and ankles) but also wastes energy and makes it harder to stay balanced for the next jump.

By contrast, maintaining a tall posture and ensuring knees track over the toes are signs of solid technique, and staying within a controlled height (rather than over-jumping) can be managed safely when landings are stable.