Buccello-Stout Regina R, Cromwell Ronita L, Bloomberg Jacob J, Whorton Elbert B
Neuroscience Laboratories, Wyle Integrated Science and Engineering, Houston, TX, USA.
J Aging Phys Act. 2013 Jul;21(3):272-89. doi: 10.1123/japa.21.3.272. Epub 2012 Sep 18.
The goal of this study was to determine if exposure to sensorimotor adaptation training improved head stabilization in older adults. Sixteen participants, age 66-81 yr, were assigned at random to the control group (n = 8) or the experimental group (n = 8). Both groups first completed 6 trials of walking a foam pathway consisting of a moveable platform that induced a lateral perturbation during walking. Head-in-space and trunk-in-space angular velocities were collected. Participants from both groups then trained twice per week for 4 wk. Both groups walked on a treadmill for 20 min. The control group viewed a static scene. The experimental group viewed a rotating visual scene that provided a perceptual-motor mismatch. After training, both groups were retested on the perturbation pathway test. The experimental group used a movement strategy that preserved head stabilization compared with the controls (p < .05). This training effect was not retained after 4 wk.
本研究的目的是确定接触感觉运动适应训练是否能改善老年人的头部稳定性。16名年龄在66 - 81岁的参与者被随机分配到对照组（n = 8）或实验组（n = 8）。两组首先完成6次在泡沫通道上行走的试验，该通道由一个可移动平台组成，在行走过程中会引起横向扰动。收集头部空间和躯干空间的角速度。两组参与者随后每周训练两次，共4周。两组都在跑步机上行走20分钟。对照组观看静态场景。实验组观看旋转视觉场景，该场景提供了感知运动不匹配。训练后，两组在扰动路径测试中重新进行测试。与对照组相比，实验组采用了一种保持头部稳定的运动策略（p < .05）。4周后这种训练效果未被保留。
