Evidence map›Paper›PMID 32082191›Full record

ArticleFrontiers in physiology2020

Effects of Matched Intermittent and Continuous Exercise on Changes of Cardiac Biomarkers in Endurance Runners.

Feifei Li, Jinlei Nie, Haifeng Zhang, Frank Fu, Longyan Yi, Will Hopkins, Yang Liu, Yifan Lu

Abstract read
In one paragraph

Article in Frontiers in physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

8 authors.

Feifei LiCollege of Physical Education, Hebei Normal University, Shijiazhuang, China.
Jinlei NieSchool of Health Sciences and Sports, Macao Polytechnic Institute, Macao, China.
Haifeng ZhangCollege of Physical Education, Hebei Normal University, Shijiazhuang, China.
Frank FuDr Stephen Hui Research Centre for Physical Recreation and Wellness, Hong Kong Baptist University, Hong Kong, China.
Longyan YiInstitute of Sport and Health Sciences, Beijing Sport University, Beijing, China.
Will HopkinsCollege of Sport and Exercise Science, Victoria University, Melbourne, VIC, Australia.
Yang LiuCollege of Physical Education, Hebei Normal University, Shijiazhuang, China.
Yifan LuCollege of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeEndurance runners training with high-intensity intermittent exercise might experience damage to cardiac muscle. We have therefore compared changes of cardiac biomarkers after workload-matched intermittent and continuous exercise.

methodsTwelve endurance runners [11 males, 1 female; means ± SD

resultsThere were moderate and large increases in high-sensitivity cardiac troponin-I and -T respectively following exercise. The differences between the increases adjusted to the mean intensity of 78 %HRR were trivial, but at 85 %HRR the increases for cardiac troponin-I and -T were moderately higher for intermittent compared with continuous exercise (factor difference, ×/÷90% confidence limits: 3.4, ×/÷1.9 and 2.1, ×/÷1.8 respectively). Differences in the changes in other cardiac biomarkers were trivial.

conclusionProlonged intermittent exercise is potentially more damaging to cardiac muscle than continuous exercise of the same average running speed at higher average heart rates in endurance runners.

Indexed as

biomarkerscardiac troponinhigh-intensity intermittent exerciseintensitymarathon runners

Identifiers

PMID32082191
PMCPMC7005585

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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.