Evidence map›Paper›PMID 23627788›Full record

ArticleJournal of the International Society of Sports Nutrition2013

Ubiquinol supplementation enhances peak power production in trained athletes: a double-blind, placebo controlled study.

Dietmar Alf, Michael E Schmidt, Stefan C Siebrecht

Open access · goldAbstract read
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Coenzyme QNutrients · 2022
    Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Biosynthesis, Deficiency, and Supplementation of Coenzyme Q.Antioxidants (Basel, Switzerland) · 2023
    Review
  6. Article
  7. Conditionally immortalised equine skeletal muscle cell lines forBiochemistry and biophysics reports · 2023
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  11. Article
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  13. Review
  14. Review
  15. Coenzyme Q10 status, glucose parameters, and antioxidative capacity in college athletes.Journal of the International Society of Sports Nutrition · 2020
    Article
  16. Article
  17. Combination of Coenzyme QOxidative medicine and cellular longevity · 2018
    Article
  18. Review
  19. 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

3 authors at 2 institutions in 2 countries.

Dietmar AlfOlympiastützpunkt Rhein - Ruhr, Wittekindstrasse 62, Essen 45131, Germany.
Michael E SchmidtBiostatistics, Roentgenstr. 25, Planegg 82152, Germany.
Stefan C SiebrechtHealth Ingredient Consultant, Gustavstr. 36, Schwelm 58332, Germany.
Université Gustave Eiffel · FRUrologische Klinik München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo investigate the effect of Ubiquinol supplementation on physical performance measured as maximum power output in young and healthy elite trained athletes.

methodsIn this double-blind, placebo-controlled study, 100 young German well trained athletes (53 male, 47 female, age 19.9 ± 2.3 years) received either 300 mg Ubiquinol or placebo for 6 weeks. Athletes had to perform a maximum power output test and the performance in W/kg of bodyweight was measured at the 4 mmol lactate threshold on a cycling ergometer before the supplementation treatment (T1), after 3 weeks (T2) and after 6 weeks (T3) of treatment. In these 6 weeks all athletes trained individually in preparation for the Olympic Games in London 2012. The maximum power output was measured in Watt/kilogram body weight (W/kg bw).

resultsBoth groups, placebo and Ubiquinol, significantly increased their physical performance measured as maximum power output over the treatment period from T1 to T3. The placebo group increased from 3.64 ± 0.49 W/kg bw to 3.94 ± 0.47 W/kg bw which is an increase of +0.30 ± 0.18 W/kg bw or +8.5% (±5.7). The Ubiquinol group increased performance levels from 3.70 W/kg bw (±0.56) to 4.08 W/kg bw (±0.48) from time point T1 to T3 which is an increase of +0.38 ± 0.22 W/kg bw or +11.0% (±8.2). The absolute difference in the enhancement of the physical performance between the placebo and the Ubiquinol group of +0.08 W/kg bodyweight was significant (p < 0.03).

conclusionsThis study demonstrates that daily supplementation of 300 mg Ubiquinol for 6 weeks significantly enhanced physical performance measured as maximum power output by +0.08 W/kg bw (+2.5%) versus placebo in young healthy trained German Olympic athletes. While adherence to a training regimen itself resulted in an improvement in peak power output, as observed by improvement in placebo, the effect of Ubiquinol supplementation significantly enhanced peak power production in comparison to placebo.

Indexed as

Elite athletesPeak power outputPerformanceReduced CoQ10Ubiquinol

Identifiers

PMID23627788
PMCPMC3661336
OpenAlexW2145090973

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.