虚拟视觉场景倾斜转换对健康老年人与年轻人的步态调节的影响 - 一个虚拟现实研究
Amit Benady1,2,3,4, Sean Zadik1, Adi Lustig1,5
1Center of Advanced Technologies in Rehabilitation, Sheba Medical Center, Ramat Gan, Israel.
PloS one
|December 4, 2024
概括
年长的成年人保持类似的依赖视觉线索步行调整的倾斜作为年轻的成年人. 视野依赖性,在老年人中更高,与倾斜行走期间的步态调节相关.
科学领域:
- 生物力学 生物力学
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 双脚运动需要在倾斜行走时适应稳定性,主要是通过步行速度调节.
- 内部 (自身感受,前庭感受) 和外部 (视觉) 线索都会影响这些适应.
- 老龄化会影响步行,这引发了有关老年人依赖视力控制步态的疑问.
研究的目的:
- 为了比较视觉线索在健康的老年人和年轻人的倾斜过渡期间对步行速度调节的影响.
- 研究不同年龄段视野依赖和步态调节之间的关系.
主要方法:
- 一个虚拟现实系统与自动步行跑步机模拟倾斜行走与独立的视觉和物理场景倾斜.
- 在这些模拟过渡过程中,测量了参与者的步行速度.
- 个人视野依赖被评估使用棒和框架测试.
主要成果:
- 老年人和年轻的成年人对视觉倾斜幻觉表现出相似的制动 (下坡) 和加速 (上坡) 反应.
- 在这两组中,在步行速度调节大小和视野依赖性之间发现了显著的相关性.
- 与年轻人相比,老年人表现出明显更高的视野依赖性.
结论:
- 健康的老年人保持类似的依赖视觉信息的步态调节在倾斜行走作为年轻的成年人.
- 视野依赖在步态调整到表面倾斜方面发挥作用,这对理解与年龄相关的运动变化有影响.
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