Several studies have shown that physical activity has positive effects on cognition in healthy older adults without cognitive complains but lesser is known about the effectiveness of aerobic exercise in patients suffering from Mild Cognitive Impairment (MCI). The aim of the present study was to systematically review the evidence from randomized controlled trials (RCTs) about the effects of aerobic exercise upon cognition in MCI patients. To this end, PubMed, Cochrane and Web of Science databases were analytically searched for RCTs including aerobic exercise interventions for MCI patients. There is evidence that aerobic exercise improves cognition in MCI patients. Overall research reported moderate effects for global cognition, logical memory, inhibitory control and divided attention. Due to methodological limitations of the investigated studies, findings should be interpreted with caution. Standardized training protocols, larger scale interventions and follow-ups may also provide better insight into the preventive effects of aerobic exercise on cognitive deterioration in MCI and its conversion into dementia.

中文翻译：

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有氧运动对轻度认知障碍患者认知的影响：随机对照试验的系统评价。

几项研究表明，体育锻炼对健康的成年人没有认知障碍具有积极的认知作用，但对有轻度认知障碍（MCI）的患者进行有氧运动的有效性知之甚少。本研究的目的是系统地回顾来自随机对照试验（RCT）的有关有氧运动对MCI患者认知的影响的证据。为此，对PubMed，Cochrane和Web of Science数据库进行了分析性搜索，以寻找RCT，包括针对MCI患者的有氧运动干预。有证据表明，有氧运动可改善MCI患者的认知。总体研究报告了对整体认知，逻辑记忆，抑制性控制和注意力分散的中等影响。由于所研究方法的局限性，调查结果应谨慎解释。标准化的培训规程，大规模干预措施和后续措施也可能使您更好地了解有氧运动对MCI认知退化及其转化为痴呆的预防作用。