Evidence map›Paper›PMID 32325144›Full record

SynthesisJournal of sport and health science2020

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

Myungjin Jung, Liye Zou, Jane Jie Yu, Seungho Ryu, Zhaowei Kong, Lin Yang, Minsoo Kang, Jingyuan Lin, Hong Li, Lee Smith and 1 more

Abstract readMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Journal of sport and health science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Myungjin JungHealth and Sport Analytics Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, University Park, MS 38677, USA.
Liye ZouExercise and Mental Health Laboratory, School of Psychology, Shenzhen University, Shenzhen 518060, China. Electronic address: liyezou123@szu.edu.cn.
Jane Jie YuDepartment of Sports Science and Physical Education, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
Seungho RyuHealth and Sport Analytics Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, University Park, MS 38677, USA.
Zhaowei KongFaculty of Education, University of Macau, Taipa, Macau 999078, China.
Lin YangDepartment of Cancer Epidemiology and Prevention Research, CancerControl Alberta, Alberta Health Services, Calgary, AB T2S 3C3, Canada; Departments of Oncology and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4Z6, Canada.
Minsoo KangHealth and Sport Analytics Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, University Park, MS 38677, USA.
Jingyuan LinExercise and Mental Health Laboratory, School of Psychology, Shenzhen University, Shenzhen 518060, China.
Hong LiExercise and Mental Health Laboratory, School of Psychology, Shenzhen University, Shenzhen 518060, China.
Lee SmithThe Cambridge Centre for Sport and Exercise Sciences, Anglia Ruskin University, Cambridge, CB1 1PT, UK.
Paul D LoprinziExercise and Memory Laboratory, Department of Health, Exercise Science and Recreation Management, University of Mississippi, Oxford, MS 38677, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to examine (1) the independent effects of hypoxia on cognitive function and (2) the effects of exercise on cognition while under hypoxia.

methodsDesign: 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).

resultsIn 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

conclusionExercise during exposure to hypoxia improves cognitive function. This association appears to be moderated by individual and exercise/hypoxia-related characteristics.

Indexed as

Age FactorsAttentionCognitionExecutive FunctionExerciseHumansHypoxiaMemoryMental ProcessesSex FactorsCognitionExecutive functionExerciseHypoxiaMemory

Identifiers

PMID32325144
PMCPMC7749263

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.