What does a chicken 🐓 and a top motorsport athlete 🏎 have in common? They both have the ability to maintain a horizontal eye-line in spite of rapid body movement. Why is this important? A horizontal eye-line allows saccadic eye movements, i.e. the ability to rapidly focus on one point to another. This fine motor control of the neck is mediated by the vestibulo-ocular reflex. Did you know muscles of the neck contain an exceptionally high density of muscle spindles (proprioceptive sensory organs which subconsciously detect muscle positioning), these muscle spindles feed into the vestibulo-ocular reflex and are crucial for its functioning. Fatigue of the major muscle groups of the neck will compromise their function and in turn, the ability of the driver to maintain a horizontal eye -line. Moral of the story? You need a rock-solid, fatigue resistant neck to succeed!