What movement is performed in the modified hurdler's stretch?

The correct answer focuses on the action of bringing the chest toward the straight leg in the modified hurdler's stretch. This movement is designed to enhance flexibility in the hamstrings and the lower back. By reaching forward towards the leg that is extended straight in front, the individual targets the muscles in the posterior chain, which includes the hamstrings and lower back muscles. This stretch is particularly beneficial for improving overall mobility and preventing injuries in activities that involve running or jumping.

Other options suggest movements that do not align with the primary objective of the modified hurdler's stretch. Leaning back primarily targets the lumbar region rather than stretching the hamstrings directly. Crossing the legs over the body does not effectively stretch the targeted muscles in the modified version of the stretch. Stretching the arms behind the back does not engage the legs or back in the manner that the correct movement does, thus it does not fulfill the goals of the modified hurdler's stretch.