When hiking along a trail, you need to lift your knee vertically to step over a rock. Which movement are you doing with your hip?

Lifting your knee forward and upward brings your thigh closer to the front of your body. This movement at the hip is flexion, so the correct choice is flexion. Extension would move the thigh backward, while abduction and adduction move it away from or toward the body's midline.

AI-written and checked against the verified answer.