Patient Perceptions Following a Single Session of Simulated or Genuine HVLA Manual Chiropractic Adjustments

Inclusion Criteria: * 18-60 years of age Exclusion Criteria: * History of stroke or transient ischemic attack or current symptoms including dizziness or vertigo, tinnitus (ringing in the ears), or visual, sensory, or motor disturbances * New pattern headache complaint * Recent whiplash injury (within 12 months) * Cervical fracture/dislocation * Disc problem with radiating symptoms to the arms or legs * Severe degenerative joint disease in the spine * Connective tissue disorder * Primary fibromyalgia * Metabolic or metaplastic bone disease * History of cervical, thoracic, or lumbar spine surgery * Uncontrolled high blood pressure or vascular disease * Current use of anticoagulant therapy * Doctor of Chiropractic (DC) or a DC student in 5th quarter or above * Present, self-reported pregnancy