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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Dual-Task Gait Performance Among Community-Dwelling Senior Women: The Role of Balance Confidence and Executive Functions
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Dual-Task Gait Performance Among Community-Dwelling Senior Women: The Role of Balance Confidence and Executive Functions

机译：社区居住的高级女性的双重任务步态表现：平衡自信心和执行功能的作用

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Background. Exploring factors that contribute to dual-task gait performance among seniors is of particular interest in falls prevention because dual-task; related gait changes are associated with increased falls risk. It is unclear currently which specific executive processes are most relevant to dual-task gait performance and whether "balance confidence" is independently associated with dual-task gait performance.Methods. A cross-sectional analysis of 140 senior women aged 65-75 years old. Balance confidence was assessed by the Activities-Specific Balance Confidence scale. Three key executive processes were assessed by standard neuropsycho-logical tests: (i) set shifting, (ii) working memory, and (iii) response inhibition. Dual-task gait performance was assessed by the simple and complex versions of the walking while talking (WWT) test. Two linear regression models were constructed to determine the independent association of executive functions and balance confidence with: (i) simple WWT completion time and (ii) complex WWT completion time.Results. Balance confidence was independently associated with both simple and complex WWT completion times after accounting for age, time to walk 40 ft without talking, and global cognition. Set shifting was independently associated with complex WWT completion time; no executive processes were independently associated with simple WWT completion time.Conclusions. This study highlights that balance confidence is independently associated with dual-task gait performance. Furthermore, executive functions do not play a significant role in dual-task gait performance when the concurrent cognitive load is low. Clinicians may need to consider balance confidence and executive functions in the assessment and rehabilitation of dual-task gait performance among community-dwelling seniors.
机译：背景。在老年人中，探索有助于双胞胎步态表现的因素在预防跌倒方面尤为重要。相关的步态变化与跌倒风险增加相关。目前尚不清楚哪些特定的执行过程与双任务步态表现最相关，以及“平衡信心”是否与双任务步态表现独立相关。对140名年龄在65-75岁之间的高级妇女进行横断面分析。通过活动特定的平衡置信度量表评估平衡置信度。通过标准的神经心理学测试评估了三个关键的执行过程：（i）设定移位，（ii）工作记忆和（iii）抑制反应。通过简单和复杂的边走边聊（WWT）测试评估了双任务步态性能。构建了两个线性回归模型来确定执行功能的独立关联并通过以下方式平衡置信度：（i）简单的WWT完成时间和（ii）复杂的WWT完成时间。在考虑了年龄，步行40英尺而不说话的时间以及全球认知之后，平衡信心与简单和复杂的WWT完成时间均独立相关。集合移位与复杂的WWT完成时间独立相关;没有执行程序与简单的WWT完成时间独立相关。这项研究强调平衡信心与双任务步态表现独立相关。此外，当并发认知负荷较低时，执行功能在双任务步态表现中不发挥重要作用。临床医生可能需要在社区老年人中评估和恢复双任务步态表现时考虑平衡信心和执行职能。

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