Self-Myofascial Release of the Upper Cervical Muscles

Brief Summary

The primary objective is to examine the influence of the suboccipital muscles on the superficial back line. The investigators will measure the following as part of this objective: * Changes in biomechanical and viscoelastic properties of points within the superficial back fascial train measured by a handheld myotonometer. * Pain pressure threshold measured by algometry. * Ankle range of motion. * Foot plantar pressure changes. All participants will have a 5-minute self-myofascial release intervention.