Evidence map›Paper›PMID 27942980›Full record

Trial reportEuropean journal of applied physiology2017

Age differences in physiological responses to self-paced and incremental [Formula: see text] testing.

Lauren A Jenkins, Alexis R Mauger, James G Hopker

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in European journal of applied physiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Trial
  2. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Lauren A JenkinsSTRAPH Research Group, School of Sport and Exercise Sciences, University of Kent, Chatham Maritime, Kent, UK.
Alexis R MaugerSTRAPH Research Group, School of Sport and Exercise Sciences, University of Kent, Chatham Maritime, Kent, UK.
James G HopkerSTRAPH Research Group, School of Sport and Exercise Sciences, University of Kent, Chatham Maritime, Kent, UK. J.G.Hopker@kent.ac.uk.ORCID http://orcid.org/0000-0002-4786-7037

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA self-paced maximal exercise protocol has demonstrated higher [Formula: see text] values when compared against traditional tests. The aim was to compare physiological responses to this self-paced [Formula: see text] protocol (SPV) in comparison to a traditional ramp [Formula: see text] (RAMP) protocol in young (18-30 years) and old (50-75 years) participants.

methodsForty-four participants (22 young; 22 old) completed both protocols in a randomised, counter-balanced, crossover design. The SPV included 5 × 2 min stages, participants were able to self-regulate their power output (PO) by using incremental 'clamps' in ratings of perceived exertion. The RAMP consisted of either 15 or 20 W min

resultsExpired gases, cardiac output (Q), stroke volume (SV), muscular deoxyhaemoglobin (deoxyHb) and electromyography (EMG) at the vastus lateralis were recorded throughout. Results demonstrated significantly higher [Formula: see text] in the SPV (49.68 ± 10.26 ml kg

conclusionFindings demonstrate that the SPV produces higher [Formula: see text], peak Q and SV values in the young group. However, older participants achieved similar [Formula: see text] values in both protocols, mostly likely due to age-related differences in cardiovascular responses to incremental exercise, despite them achieving a higher physiological workload in the SPV.

Indexed as

ExerciseOxygen ConsumptionAdolescentAdultAgedAgingCardiac OutputFemaleHumansMaleMiddle AgedMuscle ContractionCardiac outputMaximal exercisePacingRPE

Identifiers

PMID27942980
PMCPMC5306335

What OpenQuestion holds

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Registered trials

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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.