The control of posture and movement

姿势和动作的控制

• 批准号: RGPIN-2016-06297
• 负责人: Teasdale, Normand
• 金额: $ 2.55万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=630781
• 关键词: control; posture; movement

When a person stands in the middle of a room, they oscillate even if the task is to stand still. If the person is submitted to a reduced sensory condition (e.g. no-vision), we generally observed an increase in the amplitude and speed of the postural oscillations. A common interpretation for explaining these oscillations is that the increased sway is a direct consequence of reduced sensory inputs. Hence, the increased oscillations are associated with a less stable posture. An alternative viewpoint is that the increased sway rather reflects a mean to gain additional information by stimulating sensory receptors. These two different views are sometimes difficult to reconcile and new protocols are needed to provide insights into the control processes that could explain the nature of postural oscillations. This knowledge is essential for developing a coherent theoretical framework for understanding sway responses observed in various sensory and postural contexts, and to propose new interventions to optimize balance control.

当一个人站在房间中央时，他们会摆动，即使任务是站着不动。如果这个人处于感觉减弱的状态(例如，无视力)，我们通常会观察到姿势振荡的幅度和速度增加。解释这些波动的一种常见解释是，摇摆的增加是感觉输入减少的直接结果。因此，振动的增加与不太稳定的姿势有关。另一种观点认为，摇摆度的增加反映了一种通过刺激感官受体来获得额外信息的手段。这两种不同的观点有时很难调和，需要新的方案来提供对控制过程的见解，以解释姿势振荡的性质。这些知识对于建立一个连贯的理论框架，以理解在各种感觉和姿势环境中观察到的摇摆反应，以及提出新的干预措施以优化平衡控制是必不可少的。