Evidence map›Paper›PMID 33182645›Full record

ArticleSports (Basel, Switzerland)2020

Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp.

Taro Iizuka, Nao Ohiwa, Tomoaki Atomi, Miho Shimizu, Yoriko Atomi

Open access · goldAbstract read
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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 29% of its field
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

5 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Article
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  5. 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

5 authors at 3 institutions in 1 country.

Taro IizukaMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.
Nao OhiwaDepartment of Sports Research, Japan Institute of Sports Sciences, Tokyo 115-0056, Japan.
Tomoaki AtomiDepartment of Physical Therapy, Faculty of Health Sciences, Kyorin University, Tokyo 181-8612, Japan.
Miho ShimizuMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.ORCID 0000-0003-4070-8209
Yoriko AtomiMaterial Health Science Laboratory, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan.ORCID 0000-0003-3808-6543
Tokyo University of Agriculture and Technology · JPJapan Sport Council · JPKyorin University · JP

Funding

Descente and Ishimoto Memorial Foundation for the Promotion of Sports Science None
6 · The paper itself

Abstract

This study aimed to clarify whether changes in the fatigue status of elite athletes during a precompetition period could be evaluated using morning heart rate variability (HRV) indices. Eight Japanese National Badminton Team players (age, 23.0 ± 2.8 years) participated in this study. HRV and subjective fatigue were measured during the first (days 1-4: Phase 1) and the second half (days 5-8: Phase 2) of an 8-day national team training camp. The global and parasympathetic HRV indices were as follows: standard deviation of all R-R intervals (SDNN) (Phase 1, 87.5 ms; Phase 2, 104.3 ms;

Indexed as

autonomic nervous activitybadmintonfatigueheart rate variabilityphysical condition

Identifiers

PMID33182645
PMCPMC7697084
OpenAlexW3098717389

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.