Evidence map›Paper›PMID 3862135›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1985

Changes in plasma proenkephalin peptide F and catecholamine levels during graded exercise in men.

W J Kraemer, B Noble, B Culver, R V Lewis

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1985. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

11 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Review
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  10. Review
  11. The effects of graded exercise on plasma proenkephalin peptide F and catecholamine responses at sea level.European journal of applied physiology and occupational physiology · 1990
    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

4 authors at 1 institution in 1 country.

W J Kraemer
B Noble
B Culver
R V Lewis
University of Wyoming · US

Funding

PROENKEPHALIN PROCESSINGR01NS020185 · NINDS · UNIVERSITY OF WYOMING · PI LEWIS, RANDOLPH V. · 1985 to 1989
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NINDS NIH HHS NS 20185-01
6 · The paper itself

Abstract

Proenkephalin peptide F immunoreactivity, epinephrine, and norepinephrine were measured in the plasma of endurance-trained and untrained male subjects riding on a bicycle ergometer at 28%, 54%, 83%, and 100% of maximum oxygen consumption (VO2). At rest the trained group had peptide F levels almost twice the level of the untrained group, whereas all other variables measured were the same. The maximum epinephrine and norepinephrine levels were found at 100% exercise intensity, with a precipitous drop in the levels at 5 min of recovery. In contrast, the peptide F immunoreactivity reached a maximum at 5 min of recovery and was still substantially above the initial level after 15 min of rest. In addition, the trained subjects showed another peak of peptide F immunoreactivity at 54% VO2max. Possible explanations for the different patterns of catecholamine and peptide F levels are presented.

Indexed as

Physical ExertionPhysical FitnessAdultCatecholaminesChromatography, High Pressure LiquidEnkephalinsEpinephrineHumansImmunoassayMaleNorepinephrineProtein PrecursorsCatecholaminesEnkephalinsEpinephrineNorepinephrineproenkephalinProtein Precursors

Identifiers

PMID3862135
PMCPMC391051
OpenAlexW2088747642

What OpenQuestion holds

Textmetadata
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.