Clinical Research Of Normal Subjects And Peripheral Vertigo Patients With Computerized Dynamic Posturography Test

PartⅠClinical Research of Normal Subjects in Different Age Groups with Computerized Dynamic Posturography TestObjectives To study the characteristics of banlance performance in different age groups for balance function tests and balance strategy management.Methods Totally 102 normal subjects,were divided into young,middle-aged,elderly groups,and examined sensory organization tests using computerized dynamic posturogr- aphy. The6 contions in sensory organization tests(SOT)for the CDP were as follows: SOT1,eyes open,fixed platform; SOT2,eyes closed,fixed platform; SOT3, eyes open,fixed platform,swaying visual surround; SOT4,eyes open,swaying platform; SOT5,eyes closed, swaying platform; SOT6,swaying platform,swaying visual surround. Results Balance scores of young and elderly group were lower gradually with the more difficult conditions.Balance scores including total score in middle-aged group were lower significantly than the scores in young group except SOT6. Balance scores including total score were different between young and middle-aged group except SOT3,6 (P<0.05).Balance strategy scores were not different between young and middle-aged group except SOT2,3. Total balance score of elderly group was significantly lower than the young group (P<0.05). Balance scores in elderly group were lower significantly than the scores in young group except SOT3. Balance scores of SOT4,5 were different between young and elderly group (P<0.05). Balance strategy scores in elderly group were lower significantly than the scores in young group. Balance strategy scores of SOT1,3 were different between young and elderly group (P<0.05). Balance scores of SOT4,5,6 in elderly group were lower significantly than the scores in middle-aged group, especially in the visual and proprioceptive interference while the case (SOT 6) (P<0.05). Balance strategy scores in elderly group were lower than the scores in middle-aged group. Balance strategy scores were not different between elderly group and middle-aged group except SOT5(P<0.05). Conclusions Balance function in noramal subjects were gradually decreased in most conditions, especially in the visual and (or) proprioceptive disturbance case. Balance function in middle-aged people were less than young in some conditions, but middle-aged people still dominated the ankle strategy to maintain balance. Equilibrium strategy of the old people still have change even the balance function was same with young,middle-aged people in some conditions. Application of hip strategy was increased to maintain balance in elderly.PartⅡClinical Research of unilateral vestibular dysfunction patients with Computerized Dynamic Posturography TestObjectives: To study the characteristics of the unilateral vestibular dysfunction patients with computerized dynamic posturography test and discuss the value of computerized dynamic posturography test in the diagnosis and treatment of unilateral vestibular dysfunction patients.Methods Totally 74 unilateral vestibular dysfunction patients were examined sensory organization tests using computerized dynamic posturography. The6 contions in sensory organization tests(SOT)for the CDP were as follows: SOT1,eyes open,fixed platform; SOT2,eyes closed,fixed platform; SOT3,eyes open,fixed platform,swaying visual surround; SOT4,eyes open,swaying platform; SOT5,eyes closed,swaying platform; SOT6,swaying platform,swaying visual surround.Results: Balance scores including total score in unilateral vestibular dysfunction group were lower than the control group especially in SOT5,6. Balance scores were different between unilateral vestibular dysfunction group and control group except SOT1(P<0.05). Balance strategy scores of unilateral vestibular dysfunction group were lower than the control group except SOT1(P<0.05).Conclusions: Balance function and balance strategy in unilateral vestibular dysfunction people were not obvious different with normal subjects in agreeable luminous environments. Balance function in unilateral vestibular dysfunction decreased and the application of hip strategy was increased to maintain balance in the visual and proprioceptive interference.PartⅢPrimary and Secondary Clinical Research of benign paroxysmal positional vertigo patients with Computerized Dynamic Posturography TestObjectives: To study the characteristics of the primary and secondary benign paroxysmal positional vertigo patients with computerized dynamic posturography test and discuss the value of computerized dynamic posturography test in the diagnosis and treatment of benign paroxysmal positional vertigo patients.Methods: Totally 41 benign paroxysmal positional vertigo patients,were divided into primary benign paroxysmal positional vertigo, secondary benign paroxysmal positional vertigo groups,and examined sensory organization tests using computerized dynamic posturography. The6 contions in sensory organization tests(SOT)for the CDP were as follows: SOT1,eyes open,fixed platform;SOT2,eyes closed,fixed platform; SOT3, eyes open,fixed platform,swaying visual surround; SOT4,eyes open,swaying platform; SOT5,eyes closed,swaying platform; SOT6,swaying platform, swaying visual surround.Results: Balance scores including total score in P-BPPV group were lower than the control group except in SOT1. Balance scores were different between P-BPPV group and control group in SOT 4,5,6(P<0.05). Balance strategy scores in P-BPPV group were lower than the control group except in SOT1. Balance strategy scores were not different between P-BPPV group and control group except in SOT4. Balance strategy scores and balance scores including total score in S-BPPV group were lower than the control group except in SOT1(P<0.01). Balance scores including total score in S-BPPV group were lower than the P-BPPV group except in SOT1.However, only in the eyes closed SOT2,and visual disturbance SOT3 and total scores were significant different between the two groups. S-BPPV group were lower than the P-BPPV group. Balance strategy scores in S-BPPV group were lower than P-BPPV group except in SOT1.The scores in SOT3,4,5,6 were significant different between the two groups.Conclusions: The current study confirmed that both P-BPPV and S-BPPV have impaired balance function, S-BPPV damage may be greater than P-BPPV, utricle in patients with BPPV may be impaired.