Benefits of Cognitive Dual-Task Training on Balance Performance in Healthy Older Adults
Benefits of Cognitive Dual-Task Training on Balance Performance in Healthy Older Adults
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DOI：
10.1093/gerona/glq151
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发表时间：
2010-12-01
影响因子：
5.1
通讯作者：
McKinley, P. A.
中科院分区：
文献类型：
--
作者：
Li, Karen Z. H.;Roudaia, E.;McKinley, P. A.
越来越多的证据表明，执行控制参与了老年平衡的维持。我们研究了与未经训练的对照组相比，完成五次非运动认知双任务训练的健康老年人在双任务站立平衡和活动能力方面是否会表现出显着改善。二十名健康老年人被分配到训练组或对照组。在训练前和训练后，所有参与者在单任务和双任务条件下进行了认知、平衡和活动能力（单支撑平衡、动态姿势、坐站、40 英尺步行）测试。训练组完成了 5 次认知双任务训练，间隔至少 2 天。这两项任务涉及对视觉呈现的刺激做出两个选择的决定。参与者在每次训练中完成多个单任务（任务A或B，分块）和混合（A、B或A+B）试验。训练组在单支撑平衡期间的身体摇摆和双支撑动态平衡期间的重心对准方面表现出显着改善。对照组没有表现出明显的改善。这项研究首次证明了认知双任务训练对粗大运动表现的训练相关益处。结果支持这样的观点：衰老过程中的运动控制受到执行控制的影响，并且对认知训练和迁移理论具有影响。
There is growing evidence of the involvement of executive control in the maintenance of balance in old age. We examined whether healthy older adults who completed five sessions of nonmotor cognitive dual-task training would show significant improvements on measures of dual-task standing balance and mobility, compared with an untrained control group.Twenty healthy older adults were assigned to either training or control groups. In the pre- and post-training sessions, all participants performed tests of cognition, balance, and mobility (single-support balance, dynamic posturography, sit-to-stand, 40-foot walk) under single- and dual-task conditions. The training group completed five sessions of cognitive dual-task training spaced at least 2 days apart. The two tasks involved making two-choice decisions to visually presented stimuli. Participants completed multiple blocks of single-task (task A or B, blockwise) and mixed (A, B, or A + B) trials in each training session.The training group showed significant improvements in body sway during single-support balance and center of gravity alignment during double-support dynamic balance. The control group showed no appreciable improvements.This study is the first to demonstrate training-related benefits to gross motor performance stemming from cognitive dual-task training. The results support the view that motor control in aging is influenced by executive control and have implications for theories of cognitive training and transfer.