Chuna Manual Therapy for Cervicogenic Dizziness

Inclusion Criteria: * male or female aged between 20 and 70 * neck pain and/or stiffness with dizziness, which is related to movement or positioning of cervical spine * recurring symptom of dizziness over 1 month or more * Dizziness Handicap Inventory ≥ 16 at baseline * Informed consent Exclusion Criteria: * dizziness induced by vestibular disorders (e.g., benign paroxysmal positional vertigo, peripheral vestibulopathy, Meniere disease, vestibular neuronitis) * dizziness induced by central nervous system (CNS) disorders (e.g., cerebellar ataxia,cerebellum infarction/hemorrhage, demyelination, vertebrobasilar insufficiency, seizure, increased intracranial pressure, Parkinson's disease, migraines) * dizziness induced by cardiovascular disorders (e.g., arrhythmia, heart valvular disease, anemia, orthostatic hypotension, coronary artery disease) * dizziness induced by active or uncontrolled disease (e.g., uncontrolled diabetes mellitus, hypertension, respiratory or endocrinological disorders) * dizziness induced by side effects of medications * severe chronic or terminal diseases (malignant cancer, tuberculosis, etc.) * chronic psychiatric diseases under treatment (epilepsy, depression, panic disorder, etc.) * conditions where CMT are forbidden (spinal tumor, acute fracture, infectious spondylopathy, congenital malformations of spine, operation history of spine within 3 months, progressive neurological damage, severe neurological symptoms, spinal fixation devices, syringomyelia, hydrocephaly) * Treatment history within 1 week for cervicogenic dizziness (NSAIDs, steroid, herbal drug, acupuncture, manual therapy) * Women of (suspected) pregnancy or breast-feeding * Suspicion of alcohol and/or drug abuse * Participation in another clinical study within 1 month * Difficulty in communicating with the investigators * Other reasons for ineligibility of participation