Evidence map›Paper›PMID 26816497›Full record

ArticleJournal of the International Society of Sports Nutrition2016

Reliability and day-to-day variability of peak fat oxidation during treadmill ergometry.

Raul De Souza Silveira, Anja Carlsohn, Georg Langen, Frank Mayer, Friederike Scharhag-Rosenberger

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of the International Society of Sports Nutrition, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 29 citations in OpenAlex.

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  2. The day-to-day reliability of peak fat oxidation and FATEuropean journal of applied physiology · 2020
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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

5 authors at 3 institutions in 2 countries.

Raul De Souza SilveiraUniversity Outpatient Clinic, Center of Sports Medicine, Potsdam University, Potsdam, Germany ; Swiss Federal Institute of Sport Magglingen, Magglingen, Switzerland.
Anja CarlsohnUniversity Outpatient Clinic, Center of Sports Medicine, Potsdam University, Potsdam, Germany ; Department of Health Sciences, University of Education Schwaebisch Gmuend, Schwaebisch Gmuend, Germany.
Georg LangenUniversity Outpatient Clinic, Center of Sports Medicine, Potsdam University, Potsdam, Germany.
Frank MayerUniversity Outpatient Clinic, Center of Sports Medicine, Potsdam University, Potsdam, Germany.
Friederike Scharhag-RosenbergerUniversity Outpatient Clinic, Center of Sports Medicine, Potsdam University, Potsdam, Germany ; Department of Medical Oncology, National Center for Tumor Diseases (NCT), Heidelberg University Hospital, Heidelberg, Germany.
University of Potsdam · DEHeidelberg University · DESwiss Federal Institute of Sport Magglingen SFISM · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExercising at intensities where fat oxidation rates are high has been shown to induce metabolic benefits in recreational and health-oriented sportsmen. The exercise intensity (Fatpeak) eliciting peak fat oxidation rates is therefore of particular interest when aiming to prescribe exercise for the purpose of fat oxidation and related metabolic effects. Although running and walking are feasible and popular among the target population, no reliable protocols are available to assess Fatpeak as well as its actual velocity (VPFO) during treadmill ergometry. Our purpose was therefore, to assess the reliability and day-to-day variability of VPFO and Fatpeak during treadmill ergometry running.

methodsSixteen recreational athletes (f = 7, m = 9; 25 ± 3 y; 1.76 ± 0.09 m; 68.3 ± 13.7 kg; 23.1 ± 2.9 kg/m(2)) performed 2 different running protocols on 3 different days with standardized nutrition the day before testing. At day 1, peak oxygen uptake (VO2peak) and the velocities at the aerobic threshold (VLT) and respiratory exchange ratio (RER) of 1.00 (VRER) were assessed. At days 2 and 3, subjects ran an identical submaximal incremental test (Fat-peak test) composed of a 10 min warm-up (70 % VLT) followed by 5 stages of 6 min with equal increments (stage 1 = VLT, stage 5 = VRER). Breath-by-breath gas exchange data was measured continuously and used to determine fat oxidation rates. A third order polynomial function was used to identify VPFO and subsequently Fatpeak. The reproducibility and variability of variables was verified with an intraclass correlation coefficient (ICC), Pearson's correlation coefficient, coefficient of variation (CV) and the mean differences (bias) ± 95 % limits of agreement (LoA).

resultsICC, Pearson's correlation and CV for VPFO and Fatpeak were 0.98, 0.97, 5.0 %; and 0.90, 0.81, 7.0 %, respectively. Bias ± 95 % LoA was -0.3 ± 0.9 km/h for VPFO and -2 ± 8 % of VO2peak for Fatpeak.

conclusionIn summary, relative and absolute reliability indicators for VPFO and Fatpeak were found to be excellent. The observed LoA may now serve as a basis for future training prescriptions, although fat oxidation rates at prolonged exercise bouts at this intensity still need to be investigated.

Indexed as

ErgometryHealthy VolunteersAdultAnalysis of VarianceComplianceFemaleHumansLipid MetabolismMaleOxidation-ReductionOxygen ConsumptionPhysical ExertionReproducibility of ResultsRunningTreatment OutcomeWalkingPeak fat oxidationReliabilityRunningTreadmill ergometryVariability

Identifiers

PMID26816497
PMCPMC4727277
OpenAlexW2267539965

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.