| Objective:Using cervical vertebrae exercise load test to induce cervical vertigo. Observing the induced symptoms and the change of brain blood dynamically, with the new technology --NIRS(near infrared spectroscopy)at the same time. Synchronically monitoring the brain blood supplying of the Vertebro- Basilar Artery and cervical artery of the cervical vertigo patient, and to research the pathogenesis of cervical vertigo through contrast groups and clinical symptoms.Methods: 1. The patient sits up with the neck in a natural position. Put two light emitting detectors on middle of the forehead and 2 centimeters away from the back occipital bone grand in the left side. The light goes through the brain tissues, is received by the detectors and is turned into electronic signals through light intensity changes. Then HbO2, Hb, tHb data are collected through computer processing. Dynamically monitor the changes of HbO2, Hb and tHb in the patient's cortex section of the forehead and in the left occipital leaf (cerebellum), and compare them with those of the contrast group.2. Put the NIRS data as the criteria when the patient's cervical vertebrae is in a neutral position.3. First draw the basic curve for 5 minutes, observe its characteristics. At that time the monitoring curve reflects the brain oxygen situation and the brain blood during a tranquil state. 4. Ask the patient to bow the neck back and forth for 10 times, circumgyrate the neck left and right for 10 times, with the frequency of 1 time per second and with the maximum degree. At the same time dynamically observe the patient's induced symptoms, the NIRS curve and its data changes.Ask the patient to keep the neck in a maximum forward proneness position, a maximum back proneness position for 2 minutes, and5. circumgyrate the neck left and right with a maximum degree also for 2 minutes. At the same time dynamically observe the patient's induced symptoms, the NIRS curve and its data changes.Results:1. The bow and extend exercise can reduce the HbO2 and tHb level of the test group (the cervical vertigo patient). The HbO2 level reduces from -0.22±1.005 at the beginning to -1.5±2.165 at the end. That shows an obvious difference (P<0.001) from a statistical point of view. The tHb level reduces from -0.096±2.754 at the beginning to -1.090±5.379 at the end. That also shows an obvious difference (P<0.05) from a statistical point of view. The HbO2 changes 95% (from -1.278 to 1.398). The tHb changes 95% (from -1.971 to 1.890). The change of HbO2 means the reduction of oxygen ingestion of the cerebellum. The change of tHb means the reduction of CBF of the cerebellum. So the reduction of HbO2 and tHb level of the test group (the cervical vertigo patient) means the reduction of oxygen ingestion and CBF of the cerebellum.2. Among 75 cervical vertigo patients, 20 are male patients, with the disease incidence rate of 26.7%; 55 are female patients, with the disease incidence rate of73.3%. So there is an obvious difference (P<0.01) between male and female.3. During the back extending or circumgyrating exercise test of the cervical vertebrae of the patient group, induced symptoms occurs among some patients. The occurrence rate is 14.6% (11/75) and 9.3% (5/54), with no statistical significance. The changes of CBF of the Vertebro- Basilar Artery caused by other exercises also means no statistical significance. 4. The cervical vertebrae bowing and extending exercises are regarded as the criteria during the cervical vertebrae exercise load test. There are 39 patient cases with induced symptoms among 75 cases, accounting for 52.0%. It means that about half of the cervical vertigo patients can be induced to clinical symptoms by the cervical vertebrae exercise load test. 45% (15/33) of the cases, with the rise of the NIRS monitoring curve and with induced symptoms, show positive; 68% (21/31) of the cases, with the fall of the NIRS monitoring curve and with induced symptoms, show positive; 27% (3/11) of the cases, with a flat NIRS monitoring curv...
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