Motor and cognitive deficits limit the ability to flexibly modulate spatiotemporal gait features in older adults with mild cognitive impairment.
Motor and cognitive deficits limit the ability to flexibly modulate spatiotemporal gait features in older adults with mild cognitive impairment.
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运动和认知缺陷限制了轻度认知障碍的老年人灵活调节时空步态特征的能力。
DOI：
10.3389/fnhum.2023.1040930
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发表时间：
2023
影响因子：
2.9
通讯作者：
中科院分区：
文献类型：
--
作者：
简介：基于舞蹈的疗法是一种新兴的运动疗法，旨在改善患有轻度认知障碍 (MCI) 的老年人的运动和认知功能。尽管基于舞蹈的疗法对功能具有良好的效果，但仍不清楚与年龄相关的运动和认知功能下降如何影响运动能力以及影响哪些动作和节奏最大限度地提高舞蹈疗法的功效。在这里，我们评估了年龄和 MCI 对准确调节步态的空间（即关节运动学）、时间（即步数计时）和时空特征的能力的影响，以实现行走过程中的空间和时间目标。方法：我们开发了新颖的节奏运动序列——九个空间、九个时间和四个时空——偏离了步行的典型空间和时间特征。健康的年轻人 (HYA)、健康的老年人 (HOA) 和患有 MCI 的成年人在进行地面修改之前接受了每次步态修改的培训，并使用可穿戴传感器记录了运动学数据。结果：HOA 执行空间 (p = 0.010) 和时空 (p = 0.048) 步态修改的准确度低于 HYA。患有 MCI 的个体进行时空步态修改的准确度低于 HOA (p = 0.017)。步态摆动阶段的空间修改（p = 0.006，Cohen’s d = −1.3）以及时间修改期间的四步和六步双重节奏（p ≤ 0.030，Cohen’s d ≤ 0.9）分别引起 HYA 与 HOA 和 HOA 与 MCI 步态表现的最大差异。讨论：这些发现表明，与年龄相关的力量和平衡能力下降会降低准确调节空间步态特征的能力，而 MCI 个体工作记忆的下降可能会降低执行较长时间步态修改序列的能力。有节奏的运动序列表现的差异凸显了可能导致步态调节能力缺陷的运动和认知因素，这可以指导治疗个性化并提供更敏感的指标来跟踪干预效果。
Introduction: Dance-based therapies are an emerging form of movement therapy aiming to improve motor and cognitive function in older adults with mild cognitive impairments (MCIs). Despite the promising effects of dance-based therapies on function, it remains unclear how age-related declines in motor and cognitive function affect movement capacity and influence which movements and rhythms maximize dance therapy efficacy. Here, we evaluated the effects of age and MCI on the ability to accurately modulate spatial (i.e., joint kinematics), temporal (i.e., step timing), and spatiotemporal features of gait to achieve spatial and temporal targets during walking. Methods: We developed novel rhythmic movement sequences—nine spatial, nine temporal, and four spatiotemporal—that deviated from typical spatial and temporal features of walking. Healthy young adults (HYA), healthy older adults (HOA), and adults with MCI were trained on each gait modification before performing the modification overground, with kinematic data recorded using wearable sensors. Results: HOA performed spatial (p = 0.010) and spatiotemporal (p = 0.048) gait modifications less accurately than HYA. Individuals with MCI performed spatiotemporal gait modifications less accurately than HOA (p = 0.017). Spatial modifications to the swing phase of gait (p = 0.006, Cohen’s d = −1.3), and four- and six-step Duple rhythms during temporal modifications (p ≤ 0.030, Cohen’s d ≤ 0.9) elicited the largest differences in gait performance in HYA vs. HOA and HOA vs. MCI, respectively. Discussion: These findings suggest that age-related declines in strength and balance reduce the ability to accurately modulate spatial gait features, while declines in working memory in individuals with MCI may reduce the ability to perform longer temporal gait modification sequences. Differences in rhythmic movement sequence performance highlight motor and cognitive factors potentially underlying deficits in gait modulation capacity, which may guide therapy personalization and provide more sensitive indices to track intervention efficacy.
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DOI：
10.1111/j.1532-5415.1998.tb03813.x
发表时间：
1998-06-01
影响因子：
6.3
作者：
Lundin-Olsson, L;Nyberg, L;Gustafson, Y
通讯作者：
Gustafson, Y
影响因子：
3.1
作者：
Mancini M;Horak FB
通讯作者：
Horak FB
影响因子：
3
作者：
Hortobagyi, Tibor;Rider, Patrick;DeVita, Paul
通讯作者：
DeVita, Paul
影响因子：
14.8
作者：
Bowie, Christopher R.;Harvey, Philip D.
通讯作者：
Harvey, Philip D.
影响因子：
0.8
作者：
Hackney, Madeleine E.;Earhart, Gammon M.
通讯作者：
Earhart, Gammon M.