Does exercise have a protective effect on cognitive function under hypoxia? A systematic review with meta-analysis  

作　　者：Myungjin Jung Liye Zou Jane Jie Yu Seungho Ryu Zhaowei Kong Lin Yang Minsoo Kang Jingyuan Lin Hong Li Lee Smith Paul D.Loprinzi 

机构地区：[1]Health and Sport Analytics Laboratory,Department of Health,Exercise Science and Recreation Management,University of Mississippi,University Park,MS 38677,USA [2]Exercise and Mental Health Laboratory,School of Psychology,Shenzhen University,Shenzhen 518060,China [3]Department of Sports Science and Physical Education,The Chinese University of Hong Kong,Shatin,New Territories,Hong Kong 999077,China [4]Faculty of Education,University of Macao,Taipa,Macao 999078,China [5]Department of Cancer Epidemiology and Prevention Research,CancerControl Alberta,Alberta Health Services,Calgary,AB T2S 3C3,Canada [6]Departments of Oncology and Community Health Sciences,Cumming School of Medicine,University of Calgary,Calgary,AB T2N 4Z6,Canada [7]The Cambridge Centre for Sport and Exercise Sciences,Anglia Ruskin University,Cambridge,CB11PT,UK [8]Exercise and Memory Laboratory,Department of Health,Exercise Science and Recreation Management,University of Mississippi,Oxford,MS 38677,USA

出　　处：《Journal of Sport and Health Science》2020年第6期562-577,共16页运动与健康科学（英文）

基　　金：supported by grants from the National Natural Science Foundation of China(Grant#31671150);Guangdong Province Key Project(Grant#2018B030335001).

摘　　要：Objective:This study aimed to examine(1)the independent effects of hypoxia on cognitive function and(2)the effects of exercise on cognition while under hypoxia.Methods:Design:Systematic review with meta-analysis.Data sources:PubMed,Scopus,Web of Science,PsychInfo,and SPORTDiscus were searched.Eligibility criteria for selecting studies:randomized controlled trials and nonrandomized controlled studies that investigated the effects of chronic or acute exercise on cognition under hypoxia were considered(Aim 2),as were studies investigating the effects of hypoxia on cognition(Aim 1).Results:In total,18 studies met our inclusionary criteria for the systematic review,and 12 studies were meta-analyzed.Exposure to hypoxia impaired attentional ability(standardized mean difference(SMD)=-0.4),executive function(SMD=-0.18),and memory function(SMD=-0.26),but not information processing(SMD=0.27).Aggregated results indicated that performing exercise under a hypoxia setting had a significant effect on cognitive improvement(SMD=0.3,95%confidence interval:0.14-0.45,I^2=54%,p<0.001).Various characteristics(e.g.,age,cognitive task type,exercise type,exercise intensity,training type,and hypoxia level)moderated the effects of hypoxia and exercise on cognitive function.Conclusion:Exercise during exposure to hypoxia improves cognitive function.This association appears to be moderated by individual and exercise/hypoxia-related characteristics.

关 键 词：COGNITION Executive function EXERCISE HYPOXIA Memory 

分 类 号：G804.8[文化科学—运动人体科学]