Evidence map›Paper›PMID 33327399›Full record

ArticleSports (Basel, Switzerland)2020

Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters.

Taro Iizuka, Michihiro Kon, Taketeru Maegawa, Jun Yuda, Toru Aoyanagi, Hideyuki Takahashi, Tomoaki Atomi, Miho Shimizu, Yoriko Atomi

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Sports (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Review
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

9 authors.

Taro IizukaMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
Michihiro KonFaculty of Liberal Arts and Sciences, Chukyo University, Nagoya 466-8666, Japan.
Taketeru MaegawaFaculty of Sports and Health Sciences, Fukui University of Technology, Fukui 910-8505, Japan.ORCID 0000-0003-2312-9889
Jun YudaFaculty of Physical Education, Japan Women's College of Physical Education, Tokyo 157-8565, Japan.
Toru AoyanagiDepartment of Sport Life Management, Nippon Sport Science University, Kanagawa 227-0033, Japan.
Hideyuki TakahashiFaculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8577, Japan.ORCID 0000-0003-2389-2438
Tomoaki AtomiDepartment of Physical Therapy, Faculty of Health Sciences, Kyorin University, Tokyo 181-8612, Japan.ORCID 0000-0002-2568-9639
Miho ShimizuMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
Yoriko AtomiMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.ORCID 0000-0003-3808-6543

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to clarify whether the physiological fatigue status of elite speed skaters is influenced by the approximately five-month international competition season by comparing morning heart rate variability (HRV) at the beginning of the competition season (Japan Single Distances Championships: JSDC) with that at the end of the competition season (World Single Distances Championships: WSDC). Five international-class speed skaters participated in the study. HRV indices and subjective fatigue were measured each morning of the four days prior to the first races of the JSDC and WSDC in the 2007/2008 season. The parasympathetic HRV indices: root mean square of the successive R-R interval differences (RMSSD) (JSDC, 61.0 ms; WSDC, 42.1 ms;

Indexed as

autonomic nervous activityelite athletesfatigueheart rate variabilitymeasure of physiological fatigue in athletesphysiological fatigue indicesphysiological fatigue measurementspeed skating

Identifiers

PMID33327399
PMCPMC7764897

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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.