Evidence map›Paper›PMID 32872210›Full record

ArticleInternational journal of environmental research and public health2020

Changes in Markers of Oxidative Stress and α-Amylase in Saliva of Children Associated with a Tennis Competition.

José María Giménez-Egido, Raquel Hernández-García, Damián Escribano, Silvia Martínez-Subiela, Gema Torres-Luque, Enrique Ortega-Toro, José Joaquín Cerón

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 9 citations in OpenAlex.

  1. Oxidative Stress in Children and Adolescents: Insights Into Human Biology.American journal of human biology : the official journal of the Human Biology Council · 2025
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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

7 authors at 2 institutions in 1 country.

José María Giménez-EgidoDepartment of Physical Activity and Sport, Faculty of Sport Science, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30720 Murcia, Spain.ORCID 0000-0002-7722-0058
Raquel Hernández-GarcíaDepartment of Physical Activity and Sport, Faculty of Sport Science, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30720 Murcia, Spain.ORCID 0000-0001-9204-9191
Damián EscribanoInterdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Campus de Espinardo s/n, 30100 Espinardo, Spain.ORCID 0000-0001-9439-6779
Silvia Martínez-SubielaInterdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Campus de Espinardo s/n, 30100 Espinardo, Spain.ORCID 0000-0002-1524-1558
Gema Torres-LuqueSport Performance Analysis Association, University of Murcia, 30720 Murcia, Spain.ORCID 0000-0002-6212-9702
Enrique Ortega-ToroDepartment of Physical Activity and Sport, Faculty of Sport Science, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, 30720 Murcia, Spain.ORCID 0000-0002-9067-4337
José Joaquín CerónInterdisciplinary Laboratory of Clinical Analysis of the University of Murcia (Interlab-UMU), Regional Campus of International Excellence 'Campus Mare Nostrum', University of Murcia, Campus de Espinardo s/n, 30100 Espinardo, Spain.
Universidad de Murcia · ESUniversidad de Jaén · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The purpose of this paper was to analyze the changes caused by a one-day tennis tournament in biomarkers of oxidative stress and α-amylase in saliva in children. The sample was 20 male active children with the following characteristics: (a) age of players = 9.46 ± 0.66 years; (b) weight = 34.8 ± 6.5 kg; (c) height = 136.0 ± 7.9 cm; (d) mean weekly training tennis = 2.9 ± 1.0 h. The tennis competition ran for one day, with four matches for each player. Data were taken from the average duration per match and the rating of perceived exertion (RPE). Four biomarkers of antioxidant status: uric acid (AU), Trolox equivalent antioxidant capacity (TEAC), ferric reducing ability of saliva (FRAS, cupric reducing antioxidant capacity (CUPRAC) and salivary alpha-amylase (sAA) as a biomarker of psychological stress were measured in saliva. The time points were baseline (at home before the tournament), pre-competition (immediately before the first match) and post-match (after each match) measurements. The four biomarkers of antioxidant status showed a similar dynamic with lower values at baseline and a progressive increase during the four matches. Overall one-day tennis competition in children showed a tendency to increase antioxidant biomarkers in saliva. In addition, there was an increase in pre-competition sAA possibly associated with psychological stress. Further studies about the possible physiological implications of these findings should be performed in the future.

Indexed as

Tennisalpha-AmylasesBiomarkersChildExerciseHumansMaleOxidative StressSalivaalpha-AmylasesBiomarkerschildhoodexerciseredox regulation

Identifiers

PMID32872210
PMCPMC7503412
OpenAlexW3082207169

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.