关节外辅助对站立平衡期间感官整合的影响
概括
动力外骨架可以在稳定的表面上改善平衡,但在不稳定的表面上可能会阻碍平衡,特别是在视觉输入改变的情况下. 这凸显了外骨使用感官整合的重要性.
科学领域:
- 生物力学 生物力学
- 人与机器人的交互
- 神经康复疗法 神经康复疗法
背景情况:
- 外骨架设备提供了诸如降低代谢成本和增加负载能力等好处.
- 了解动力辅助如何影响平衡感官集成对于有效使用至关重要.
- 对感觉系统的挑战可能会破坏使用辅助设备所需的新型信息的整合.
研究的目的:
- 为了研究平衡表现和感官集成在静静站立时与外骨使用的变化.
- 确定动力外骨架辅助如何影响姿势控制和感官信息处理.
主要方法:
- 11名没有损伤的成年人进行了基于虚拟现实的平衡感官整合测试 (VRSIB).
- 参与者用无动力外骨,动力外骨 (比例肌电控制) 和普通鞋子完成了VRSIB.
- 测量包括姿势生物力学,肌肉活动,平衡得分,姿势控制策略和感官比率.
主要成果:
- 随着外骨架在坚固的地面上,平衡性能得到了改善.
- 在不稳定的表面或视觉信息变化的情况下,性能恶化.
- 驱动式与非驱动式外骨的平衡是相似的,除了当表面和视觉条件都改变时.
结论:
- 外骨的被动刚性有利于在稳定的地面上保持平衡,但在不稳定的表面上可能会损害平衡.
- 非veridical视觉输入与外骨架辅助相结合,可以放大肌肉输入中的错误,从而对姿势控制产生负面影响.
- 外骨的使用需要有效的感官集成,这可能会受到改变感官信息和设备属性的挑战.
相关概念视频
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