ABSTRACT

Purpose

: To systematically regroup articles that were published since the latest systematic search, but with specific inclusion criteria to help comparison that will offer a focused presentation of methods and results. This will offer a full overview of HRV’s behavior at rest and during exercise in adults post-concussion.

Methods

: The systematic review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) method. A computer-based systematic search was conducted in December 2019 through the Pubmed, Scopus and SPORTDiscus databases. A manual search was performed through the reference list of all articles retained. The reliability of the systematic search was assured by having the article selection process entirely repeated by a second author.

Results

: The systematic search yielded a total of 15 articles to be further analyzed. Results show impairment of HRV during exercise for individuals with concussion, heterogenous studies with lack of control over confounding factors and only less than half of the results showing a significant difference between individuals with concussion and controls.

Conclusion

: Further research should try standardizing HRV measurement protocols that control confounding factors to allow easier comparison between studies and allows the possibility for an eventual meta-analysis.

中文翻译：

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脑震荡后心率变异性的不确定结果：系统评价

摘要

目的

：系统地重新组合自最近一次系统搜索以来发表的文章，但具有特定的纳入标准以帮助比较，从而提供方法和结果的重点介绍。这将全面概述 HRV 在脑震荡后休息和运动期间的行为。

方法

: 系统评价是使用系统评价和荟萃分析的首选报告项目 (PRISMA) 方法进行的。2019 年 12 月，通过 Pubmed、Scopus 和 SPORTDiscus 数据库进行了基于计算机的系统搜索。通过保留的所有文章的参考列表进行手动搜索。通过让第二位作者完全重复文章选择过程，确保了系统搜索的可靠性。

结果

: 系统搜索共产生 15 篇文章有待进一步分析。结果显示，脑震荡患者在运动过程中 HRV 受损，异质性研究缺乏对混杂因素的控制，只有不到一半的结果显示脑震荡患者和对照组之间存在显着差异。

结论

：进一步的研究应该尝试标准化控制混杂因素的 HRV 测量方案，以便更容易地比较研究，并允许最终进行荟萃分析。