任务需求对老年人姿势控制的影响。
Task demand effects on postural control in older adults.
作者信息
Prioli Ana Caroline, Cardozo Aline Steckelberg, de Freitas Júnior Paulo Barbosa, Barela José Angelo
机构信息
Laboratório para Estudos do Movimento, Universidade Estadual Paulista-IB, Departamento de Educação Física, Av, 24a, 1515, Rio Claro, SP 13506-900, Brazil.
出版信息
Hum Mov Sci. 2006 Jun;25(3):435-46. doi: 10.1016/j.humov.2006.03.003. Epub 2006 May 2.
The literature shows conflicting results regarding older adults' (OA) postural control performance. Differing task demands amongst scientific studies may contribute to such ambiguous results. Therefore, the purpose of this study was to examine the performance of postural control in older adults and the relationship between visual information and body sway as a function of task demands. Old and young adults (YA) maintained an upright stance on different bases of support (normal, tandem and reduced), both with and without vision, and both with and without room movement. In the more demanding tasks, the older adults displayed greater body sway than the younger adults and older adults were more influenced by the manipulation of the visual information due to the room movement. However, in the normal support condition, the influence of the moving room was similar for the two groups. These results suggest that task demand is an important aspect to consider when examining postural control in older adults.
文献显示，关于老年人（OA）的姿势控制表现，研究结果相互矛盾。科学研究中不同的任务要求可能导致了这种不明确的结果。因此，本研究的目的是考察老年人姿势控制的表现，以及视觉信息与身体摆动之间的关系，该关系是任务要求的一个函数。老年人和年轻人（YA）在不同的支撑基础（正常、前后排列和缩小）上保持直立姿势，有视觉和无视觉条件下均进行，且有房间移动和无房间移动条件下也均进行。在要求更高的任务中，老年人比年轻人表现出更大的身体摆动，并且由于房间移动，老年人受视觉信息操纵的影响更大。然而，在正常支撑条件下，移动房间对两组的影响相似。这些结果表明，在考察老年人的姿势控制时，任务要求是一个需要考虑的重要方面。
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