Orthopaedic and Trauma Operative Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, University Hospital G. Martino, Messina, Italy.
"Vanico" Physical Medicine and Rehabilitation Centre and "Vittoria" Clinic of Intensive Rehabilitation, Castelvetrano (Trapani), Italy.
Med Glas (Zenica). 2021 Feb 1;18(1):328-333. doi: 10.17392/1324-21.
Aim Posture requires fine integrative elaboration, performed by the central nervous system, of neurosensory information originated from the visual, vestibular and spinal circuit. Many perturbing agents can influence this elaboration and then the postural stability. Several studies have evaluated only the effect of a single agent on the postural control. The study analysed the perturbing effect of several external agents on the different sensorial circuits in terms of postural balance loss in orthostatism. Methods The postural stability of 31 patients was evaluated with a static posturography platform in basal conditions and after exposure to an external agent in the following order: stroboscopic light projecting, mechanical rotations on a swivel chair, feet desensitization through ice, administration of an alcoholic drink at intervals which depended on the participant return to basic posturographic values. Tests were performed with open eyes (OE), closed eyes (CE) and reducing plantar perception through the use of a rubber pillow. Results The stroboscopic light altered the postural control. The swivel chair disturbed only with CE. Ice and alcohol increased the oscillation area. The alcohol test had a significant reduction in postural control with OE compared to CE. The rubber cushion increased the oscillation area in all OE tests and with CE in alcohol and ice tests. Conclusion The different agents did not trigger postural control deficits in the same way. A cold environment with psychedelic lights and the use of alcoholic beverages altered significantly the postural stability by influencing simultaneously all perceptions (visual, vestibular and somatosensory feedback).
目的姿势需要精细的整合，由中枢神经系统对源自视觉、前庭和脊柱回路的神经感觉信息进行处理。许多干扰因素会影响这种处理，从而影响姿势稳定性。许多研究仅评估了单一因素对姿势控制的影响。本研究分析了多种外部因素对不同感觉回路的干扰作用，以评估直立位时的姿势平衡丧失情况。方法使用静态姿势描记术平台在基础条件下和在以下顺序暴露于外部因素后评估 31 名患者的姿势稳定性：频闪灯投射、旋转椅机械旋转、通过冰使脚部脱敏、间隔给予含酒精饮料，取决于参与者恢复基本姿势描记术值的时间。测试分别在睁眼（OE）、闭眼（CE）和使用橡胶枕头降低足底感知的情况下进行。结果频闪灯光改变了姿势控制。旋转椅仅在 CE 时会干扰。冰和酒精增加了摆动面积。与 CE 相比，OE 下的酒精测试对姿势控制的影响显著降低。橡胶垫在所有 OE 测试中增加了摆动面积，在酒精和冰测试中也增加了 CE 的摆动面积。结论不同的因素以不同的方式引发姿势控制缺陷。冷环境中的迷幻灯光和使用酒精饮料会通过同时影响所有感觉（视觉、前庭和躯体感觉反馈）显著改变姿势稳定性。
