Evidence map›Paper›PMID 16980537›Full record

ArticleBritish journal of sports medicine2006

Non-random fluctuations in power output during self-paced exercise.

R Tucker, A Bester, E V Lambert, T D Noakes, C L Vaughan, A St Clair Gibson

Open access · bronzeAbstract read
In one paragraph

Article in British journal of sports medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 89 citations in OpenAlex.

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  6. Pace and motor control optimization for a runner.Journal of mathematical biology · 2021
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  14. Pacing and awareness: brain regulation of physical activity.Sports medicine (Auckland, N.Z.) · 2013
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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 2 institutions in 1 country.

R TuckerBrain Sciences Research Group, MRC/UCT Research Unit of Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town and Sport Science Institute of South Africa, Newlands, South Africa.
A Bester
E V Lambert
T D Noakes
C L Vaughan
A St Clair Gibson
Sports Science Institute of South Africa · ZAUniversity of Cape Town · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo analyse the power output measured during a self-paced 20-km cycling time trial, during which power output was free to vary, in order to assess the level and characteristics of the variability in power output that occurred during the exercise bout.

methodsEleven well-trained cyclists performed a 20-km cycling time trial, during which power output was sampled every 200 m. Power spectrum analysis was performed on the power output data, and a fractal dimension was calculated for each trial using the Higuchi method.

resultsIn all subjects, power output was maintained throughout the trial until the final kilometre, when it increased significantly, indicating the presence of a global pacing strategy. The power spectrum revealed the presence of 1/f-like scaling of power output and multiple frequency peaks during each trial, with the values of the frequency peaks changing over the course of the trial. The fractal dimension (D-score) was similar for all subjects over the 20-km trial and ranged between 1.5 and 1.9.

conclusionsThe presence of an end spurt in all subjects, 1/f-like scaling and multiple frequency peaks in the power output data indicate that the measured oscillations in power output during cycling exercise activity may not be system noise, but may rather be associated with system control mechanisms that are similar in different individuals.

Indexed as

AdultBicyclingErgometryExercise TestFourier AnalysisFractalsHumansMalePhysical FitnessTask Performance and Analysis

Identifiers

PMID16980537
PMCPMC2465046
OpenAlexW2124604603

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.