Isometric strengthening of the lateral cervical structures while engaging in flexion/extension of the head.

In running, our head must be able to move freely thus maintaining the possibility to re-orient.

As our running speed increases the need to control additional internal & external perturbatory forces increases as well.

Hence the stabilizing muscles of the neck must be sufficient to meet these excessive forces to ensure cervical integrity and stabilization of the head for gaze and equilibrium.