The 25 Degree Tilt
The neck musculature can be broken up into two distinct functional units: The muscles that extend and flex the head and the muscles that extend and flex the cervical spine.
Doing a neck extension on a 4 way neck machine or manually is great for the neck muscles, but does very little to exercise the muscular groups that are responsible for tilting or extension of the head. The '25 Degree Tilt' requires the neck muscles to stabilize the cervical column while the exercise is performed by movement of the head and its associated suboccipital musculature.
This group around the atlas and axis are known to anatomists as the suboccipital triangle. The group extends the head and is comprised of eight muscles, one set of four on either side just below your skull.
rectus capitis major
rectus capitis minor
Once athletes begin training the head tilt they are suddenly surprised with a sensation they have never felt. Many feel a funny burn after several sessions high in the bottom of their scalp, the occipitales. Others after weeks of training suddenly find they can now wiggle their ears.
To Peform The 25 Degree Tilt
Place the Selector Pin in the 4th Hole from the Front of the Cam, Look up Towards the Ceiling as you Extend Just the Head