Evidence map›Paper›PMID 34079172›Full record

ArticleBiology of sport2021

Effects of 7-day intake of hydrogen-rich water on physical performance of trained and untrained subjects.

Rafael Timón, Guillermo Olcina, Adrian González-Custodio, Marta Camacho-Cardenosa, Alba Camacho-Cardenosa, Ismael Martínez Guardado

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Biology of sport, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07130942 (The Effect of Inhalation Using a Molecular Hydrogen Generator on the Level of Exercise Capacity and Inflammatory Response, Anti-cancer Potential of Human Blood Serum in the Light of in Vivo/in Vitro Studies), which is not on this map. Cited by 17 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 3 pooled it
2.0field-weighted citation impact, top 13% 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.

NCT07130942 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

The Effect of Inhalation Using a Molecular Hydrogen Generator on the Level of Exercise Capacity and Inflammatory Response, Anti-cancer Potential of Human Blood Serum in the Light of in Vivo/in Vitro Studies

TypeinterventionalSponsorGdansk University of Physical Education and SportRan2025 to 2030Enrolled250ConditionsPhysiological Adaptations, Sport Performance, Aerobic Capacity, Anaerobic PowerArmsInhalation using a molecular hydrogen generator
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Hydrogen Water: Extra Healthy or a Hoax?-A Systematic Review.International journal of molecular sciences · 2024
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  15. Effects of pre-exercise HFrontiers in physiology · 2022
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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

6 authors at 1 institution in 1 country.

Rafael TimónFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Guillermo OlcinaFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Adrian González-CustodioFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Marta Camacho-CardenosaFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Alba Camacho-CardenosaFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Ismael Martínez GuardadoFaculty of Sport Sciences. Universidad de Extremadura, Spain.
Universidad de Extremadura · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydrogen-rich water (HRW) is used as a supplement to improve performance and reduce fatigue in athletes. However, the potentially beneficial effects of HRW intake could be mediated by the training status of athletes. The purpose of the study was to analyse the ergogenic effect of intake of HRW for one week on aerobic and anaerobic performance, both in trained and untrained individuals. Thirty-seven volunteers participated in the study and were divided into two experimental groups: trained cyclists and untrained subjects. A double-blind crossover design was performed in which all subjects took a placebo (PW) and nano-bubble HRW (pH: 7.5; hydrogen concentration: 1.9 ppm; oxidation-reduction potential (ORP): -600 mV). At the end of 7-day intake, performance was assessed by an incremental VO

Indexed as

Cycling FatigueHydrogen-rich waterPeak powerPerformance

Identifiers

PMID34079172
PMCPMC8139351
OpenAlexW3097767461

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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 Socratic graph.