减少认知资源会导致老年人采取危险的步骤策略
Adam J Cocks1, William R Young2, Toby J Ellmers3
1Department of Sport, Health and Exercise Sciences, Brunel University of London, UK; College of Health, Medicine and Life Sciences, Brunel University of London, UK; Centre for Cognitive and Clinical Neuroscience, Brunel University of London, UK.
Gait & posture
|October 1, 2025
概括
减少认知资源会增加老年人危险跨步的可能性. 这种步骤策略,在步骤中脚交叉,与执行功能和注意力缺陷有关,可能会增加跌倒风险.
科学领域:
- 老年学是指老年学的学科.
- 神经科学是一个神经科学.
- 生物力学 生物力学
背景情况:
- 跌倒在重量转移的动作中很常见,比如越过障碍物.
- 跨步,一个危险的步态模式,脚交叉,是跌倒的重要贡献者.
- 跨步行为背后的根本原因仍然不太清楚.
研究的目的:
- 调查认知资源在执行交叉步骤中的作用.
- 确定认知功能下降是否有助于这种危险的逐步策略.
主要方法:
- 51名老年人在单任务和双任务 (认知负载) 条件下执行了一项多目标步骤任务.
- 步行参数,包括跨步和步行错误,使用GAITRite步道进行了评估.
- 认知功能 (执行功能/注意力) 和步行速度也被测量.
主要成果:
- 执行功能和注意力缺陷独立预测了越来越多的交叉步骤.
- 与单一任务行走相比,双重任务条件显著增加了跨步的频率.
- 在双重任务条件下,步行速度下降,而步行错误和双肢支持续时间在双重任务条件下增加.
结论:
- 减少用于运动规划和执行的认知资源似乎有助于跨步.
- 研究结果表明,认知功能与执行潜在危险的步骤策略之间存在联系.
- 需要进一步的研究来确定认知,跨步和跌倒风险之间的因果关系.
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