Abstract: A neck exercise apparatus comprises a thin elongate leaf spring spanning between two supports. One or both of the supports includes a clamping actuator configured for clamping the leaf spring to the support during exercise. The actuator is also configured for releasing the clamping force, thereby permitting adjustment of the position of the support along the length of the leaf spring. Lower ends of the supports are configured to permit the supports to pivot over a flat support surface as the leaf spring is flexed during exercise.

Abstract: A neck exercise apparatus for developing strength, endurance, and flexibility in the neck. The apparatus comprises a leaf spring that is held by a support at each end. The leaf spring and its supports are mounted on a base. The distance between the supports can be adjusted to vary the force necessary to deflect the leaf spring. A gauge block may be placed beneath the center of the spring to measure and to limit the range of motion of the exercise. In an alternative embodiment of the invention, a single semielliptical leaf spring replaces the leaf spring and two supports of the preferred embodiment.