Evidence map›Paper›PMID 30006669›Full record

Trial reportEuropean journal of applied physiology2018

Exercise-induced trunk fatigue decreases double poling performance in well-trained cross-country skiers.

Elias Bucher, Øyvind Sandbakk, Lars Donath, Ralf Roth, Lukas Zahner, Oliver Faude

Open access · bronzeAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of applied physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Energy system contribution during competitive cross-country skiing.European journal of applied physiology · 2019
    Review
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 3 institutions in 3 countries.

Elias BucherDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland. elias.bucher@baspo.admin.ch.ORCID http://orcid.org/0000-0002-3689-2974
Øyvind SandbakkCentre for Elite Sports Research, Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway.
Lars DonathDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Ralf RothDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Lukas ZahnerDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Oliver FaudeDepartment of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
University of Basel · CHGerman Sport University Cologne · DENorwegian University of Science and Technology · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo examine the effects of exercise-induced trunk fatigue on double poling performance, physiological responses and trunk strength in cross-country skiers.

methodsSixteen well-trained male cross-country skiers completed two identical pre- and post-performance tests, separated by either a 25-min trunk fatiguing exercise sequence or rest period in a randomized, controlled cross-over design. Performance tests consisted of a maximal trunk flexion and extension test, followed by a 3-min double poling (DP) test on a ski ergometer.

resultsPeak torque during isometric trunk flexion (- 66%, p < .001) and extension (- 7.4%, p = .03) decreased in the fatigue relative to the control condition. Mean external power output during DP decreased by 14% (p < .001) and could be attributed both to reduced work per cycle (- 9%, p = .019) and a reduced cycle rate (- 6%, p = .06). Coinciding physiological changes in peak oxygen uptake (- 6%, p < .001) and peak ventilation (- 7%, p < .001) could be observed. Skiers chose a more even-pacing strategy when fatigued, with the performance difference between fatigue and control condition being most prominent during the first 2 min of the post-test.

conclusionsIn well-trained cross-country skiers, exercise-induced trunk fatigue led to a substantial decrease in DP performance, caused by both decreased work per cycle and cycle rate and accompanied by reduced aerobic power. Hence, improved fatigue resistance of the trunk may therefore be of importance for high-intensity DP in cross-country skiing.

Indexed as

AdultAthletic PerformanceCross-Over StudiesExerciseExercise TestFatigueHumansMaleMuscle, SkeletalMuscle StrengthOxygen ConsumptionPhysical EnduranceSkiingYoung AdultCoreErgometerPower outputSkiTechnique

Identifiers

PMID30006669
OpenAlexW2884901671

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.