Which of the following is a fault observed in a kettlebell swing?

• A. Overextension at the finished position
• B. Chest staying upright
• C. Weight staying back on heels
• D. Not using a hip hinge

Answer: (A)

Finish position control is what this item tests: you want a tall, neutral spine with the hips fully extended, not an excessive arch in the lower back. Overextension at the finished position means the spine is hyperextended and the torso leans back beyond neutral, which places undue load on the lumbar spine and undermines the hip-driven mechanics of the swing. The proper finish should show hips driving forward to full extension while the spine remains neutral and braced, chest tall, and ribs down. That’s why this is the fault described. The chest staying upright is correct posture, weight staying back on the heels isn’t the typical finish fault you’re tracking here, and not using a hip hinge describes a different technique error that starts the movement mispattern rather than the end position.