Evidence map›Paper›PMID 33384615›Full record

ArticleFrontiers in physiology2020

Exhaustive Exercise and Post-exercise Protein Plus Carbohydrate Supplementation Affect Plasma and Urine Concentrations of Sulfur Amino Acids, the Ratio of Methionine to Homocysteine and Glutathione in Elite Male Cyclists.

Thomas Olsen, Ove Sollie, Eha Nurk, Cheryl Turner, Fredrik Jernerén, John L Ivy, Kathrine J Vinknes, Matthieu Clauss, Helga Refsum, Jørgen Jensen

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

17 citing papers in PubMed, 19 citations in OpenAlex.

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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

10 authors at 6 institutions in 5 countries.

Thomas OlsenDepartment of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Ove SollieDepartment of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.
Eha NurkDepartment of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Cheryl TurnerDepartment of Pharmacology, University of Oxford, Oxford, United Kingdom.
Fredrik JernerénDepartment of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden.
John L IvyDepartment of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX, United States.
Kathrine J VinknesDepartment of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Matthieu ClaussDepartment of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.
Helga RefsumDepartment of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
Jørgen JensenDepartment of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway.
Norwegian School of Sport Sciences · NOUniversity of Oslo · NONational Institute for Health Development · EEThe University of Texas at Austin · USUniversity of Oxford · GBUppsala University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Plasma and tissue sulfur amino acid (SAA) availability are crucial for intracellular methylation reactions and cellular antioxidant defense, which are important processes during exercise and in recovery. In this randomized, controlled crossover trial among eight elite male cyclists, we explored the effect of exhaustive exercise and post-exercise supplementation with carbohydrates and protein (CHO+PROT) vs. carbohydrates (CHO) on plasma and urine SAAs, a potential new marker of methylation capacity (methionine/total homocysteine ratio [Met/tHcy]) and related metabolites. The purpose of the study was to further explore the role of SAAs in exercise and recovery. Athletes cycled to exhaustion and consumed supplements immediately after and in 30 min intervals for 120 min post-exercise. After ~18 h recovery, performance was tested in a time trial in which the CHO+PROT group cycled 8.5% faster compared to the CHO group (41:53 ± 1:51 vs. 45:26 ± 1:32 min,

Indexed as

carbohydrate supplementationexercisemethylationoxidative stressperformanceprotein supplementation

Identifiers

PMID33384615
PMCPMC7769812
OpenAlexW3116895538

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.