Background

Mild cognitive impairment is an age-related cognitive disorder which is associated with frequent memory lapses, impaired judgement, and progressive functional decline. If untreated early, 39.2% of people with mild cognitive impairment could progress to develop dementia. However, there are currently no approved pharmacological interventions to treat the condition, which lead researchers to explore non-pharmacological options, such as dance therapy.

Objectives

This systematic review aimed to examine the effectiveness of dance interventions on cognition, neuroplasticity, physical function, depression, and quality of life in older adults with mild cognitive impairment.

Methods

Seven databases were systematically searched from their respective inception dates to 31 March 2020. Relevant randomized controlled trials (RCTs) were screened and assessed for risk of bias. Eight RCTs evaluating dance interventions were included.

Results

Results showed that dance interventions had a significant moderate effect on global cognition (SMD=0.54, Z = 3.55, p<0.001), significantly improved memory (SMD=0.33, Z = 3.97, p<0.001), visuospatial function (SMD=0.42, Z = 2.41, p = 0.02), and language (SMD=0.39, Z = 2.69, p = 0.007). We found that dance interventions produced a significant moderate effect on physical function (SMD=0.55, Z = 3.43, p<0.001), and a significant effect on quality of life (SMD=0.93, Z = 5.04, p<0.0.001).

Conclusion

Dance is a non-pharmacological and inexpensive intervention that can be implemented for older adults on a large scale. It can slow down the cognitive deterioration of older adults with mild cognitive impairment. However, the findings should be interpreted with caution due to the heterogeneity in intervention designs. Rigorous design studies with long-term follow-ups, neuroimaging, biological markers, and comprehensive neuropsychological assessment are required to understand the mechanism of dance interventions and demonstrate its efficacy for older adults with mild cognitive impairment.

The protocol was registered on PROSPERO (CRD42020173659).

中文翻译：

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舞蹈干预对轻度认知障碍老年人认知、神经可塑性、身体机能、抑郁和生活质量的影响：系统评价和荟萃分析

背景

轻度认知障碍是一种与年龄相关的认知障碍，与频繁的记忆丧失、判断力受损和进行性功能衰退有关。如果不及早治疗，39.2% 的轻度认知障碍患者可能会发展为痴呆症。然而，目前还没有批准的药物干预措施来治疗这种疾病，这导致研究人员探索非药物选择，例如舞蹈疗法。

目标

本系统评价旨在检查舞蹈干预对轻度认知障碍老年人的认知、神经可塑性、身体功能、抑郁和生活质量的有效性。

方法

从各自的开始日期到 2020 年 3 月 31 日对七个数据库进行了系统搜索。筛选并评估了相关随机对照试验 (RCT) 的偏倚风险。包括八项评估舞蹈干预的随机对照试验。

结果

结果表明，舞蹈干预对整体认知（SMD=0.54，Z  =3.55，p <0.001）、记忆力（SMD=0.33，Z  =3.97，p <0.001）、视觉空间功能（SMD=0.42 , Z  = 2.41, p  = 0.02) 和语言 (SMD=0.39, Z  = 2.69, p  = 0.007)。我们发现舞蹈干预对身体机能产生显着的中等影响（SMD=0.55，Z  = 3.43，p <0.001），并对生活质量产生显着影响（SMD=0.93，Z  = 5.04，p <0.001） .

结论

舞蹈是一种非药物和廉价的干预措施，可以为老年人大规模实施。它可以减缓患有轻度认知障碍的老年人的认知恶化。然而，由于干预设计的异质性，应谨慎解释研究结果。需要通过长期随访、神经影像学、生物标记和综合神经心理学评估进行严格的设计研究，以了解舞蹈干预的机制并证明其对轻度认知障碍老年人的疗效。

该协议已在 PROSPERO (CRD42020173659) 上注册。