Improved intraindividual variability in cognitive performance following cognitive and exercise training in older adults.

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-05-01 Epub Date: 2023-10-20 DOI:10.1017/S1355617723000577

Nárlon C Boa Sorte Silva, Lisanne F Ten Brinke, Allison A M Bielak, Todd C Handy, Teresa Liu-Ambrose

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引用次数: 0

Abstract

Objective: Increased intraindividual variability (IIV) of cognitive performance is a marker of cognitive decline in older adults. Whether computerized cognitive training (CCT) and aerobic exercise counteracts cognitive decline by reducing IIV is unknown. We investigated the effects of CCT with or without aerobic exercise on IIV in older adults.

Methods: This was a secondary analysis of an 8-week randomized controlled trial. Older adults (aged 65-85 years) were randomized to CCT alone (n = 41), CCT with aerobic exercise (n = 41), or an active control group (n = 42). The CCT group trained using the Fit Brains® platform 3×/week for 1 hr (plus 3×/week of home-based training). The CCT with aerobic exercise group received 15 min of walking plus 45 min of Fit Brains® 3×/week (plus 3×/week of home-based training). The control group received sham exercise and cognitive training (3×/week for 1 hr). We computed reaction time IIV from the Dimensional Change Card Sort Test, Flanker Inhibitory Control and Attention Test (Flanker), and Pattern Comparison Processing Speed Test (PACPS).

Results: Compared with the control group, IIV reduced in a processing speed task (PACPS) following CCT alone (mean difference [95% confidence interval]: -0.144 [-0.255 to -0.034], p < 0.01) and CCT with aerobic exercise (-0.113 [-0.225 to -0.001], p < 0.05). Attention (Flanker congruent) IIV was reduced only after CCT with aerobic exercise (-0.130 [-0.242 to -0.017], p < 0.05).

Conclusions: A CCT program promoted cognitive health via reductions in IIV of cognitive performance and combining it with aerobic exercise may result in broader benefits.

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老年人认知和运动训练后认知表现的个体内变异性得到改善。

目的：认知表现的个体内变异性（IIV）增加是老年人认知能力下降的标志。计算机认知训练（CCT）和有氧运动是否通过降低IIV来对抗认知能力下降尚不清楚。我们研究了有氧运动或无氧运动的CCT对老年人IIV的影响。方法：对一项为期8周的随机对照试验进行二次分析。老年人（65-85岁）被随机分为单独CCT（n=41）、有氧运动CCT（n=41）或主动对照组（n=42）。CCT组使用Fit Brains®平台进行为期1小时的每周3次训练（加上每周3次的家庭训练）。CCT有氧运动组接受15分钟步行加45分钟Fit Brains®3×/周（加3×/每周家庭训练）。对照组接受假运动和认知训练（3×/周，持续1小时）。我们通过维度变化卡片分类测试、Flanker抑制控制和注意力测试（Flanker）和模式比较处理速度测试（PACPS）计算反应时间IIV。结果：与对照组相比，处理速度任务（PACPS）的IIV在单独进行CCT（平均差异[95%置信区间]:-0.144[-0.255--0.034]，p<0.01）和进行有氧运动的CCT（-0.113[-0.225--0.001]，p<0.05）后降低。注意力（Flanker一致性）IIV仅在进行有氧锻炼的CCT后降低（-0.130[-0.242-0.017]，p<0.05）。结论：CCT项目通过降低认知表现的IIV，并将其与有氧运动相结合，可能会带来更广泛的好处。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464