Evidence map›Paper›PMID 29117228›Full record

ArticlePloS one2017

The pacing strategy and technique of male cross-country skiers with different levels of performance during a 15-km classical race.

Boye Welde, Thomas L Stöggl, Gunnar E Mathisen, Matej Supej, Chiara Zoppirolli, Andreas K Winther, Barbara Pellegrini, Hans-Christer Holmberg

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

29 citing papers in PubMed.

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  9. Characteristics of Pacing Strategies among Elite Cross-Country Skiers According to Final Rank.International journal of environmental research and public health · 2022
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  20. 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

8 authors.

Boye WeldeSchool of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway.ORCID http://orcid.org/0000-0003-3805-1615
Thomas L StögglDepartment of Sport Science and Kinesiology, University of Salzburg, Salzburg, Austria.
Gunnar E MathisenSchool of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway.
Matej SupejSwedish Winter Sports Research Centre, Department of Health Sciences, Mid Sweden University, Östersund, Sweden.
Chiara ZoppirolliCeRiSM, Center of Research in Mountain Sport and Health, University of Verona, Rovereto, Italy.
Andreas K WintherSchool of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway.
Barbara PellegriniCeRiSM, Center of Research in Mountain Sport and Health, University of Verona, Rovereto, Italy.
Hans-Christer HolmbergSchool of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study the pacing strategy, cycle characteristics and choice of technique of elite male cross-country (XC) skiers during a three-lap, 15-km classical race with interval start were measured. During the Norwegian Championships in 2016, fast (n = 18, age: 26±4 yr; height: 182±4 cm; body mass: 78±3 kg (means±SD)) and slow skiers (n = 18, age: 22±2 yr; height: 183±5 cm; body mass: 78±6 kg) were video recorded on flat (0°), intermediate (3.5°) and uphill sections (7.1°) of the first and final laps. All skiers adopted a positive pacing strategy, skiing more slowly (11.8%) with shorter cycles (11.7%) on the final than first lap (both p<0.001; pη2 = 0.93 and 0.87, respectively). The fast skiers were 7.0% faster overall (p<0.001, d = 4.20), and 6.1% (p<0.001, d = 3.32) and 7.0% (p<0.001, d = 3.68) faster on the first and final laps, respectively, compared to slower skiers. On all sections of both laps, the fast skiers exhibited 9.5% more rapid (pη2 = 0.74) and 8.9% (pη2 = 0.48) longer cycles (both p<0.001). On intermediate terrain, the fast skiers employed primarily double poling (DP, 38.9% on the first lap) and double poling with a kick (DPKICK, 50% on the final lap). In contrast, the slow skiers utilized for the most part DP alone (lap 1: 33.3%, lap 3: 38.9%) or in combination with other techniques (lap 1: 33.3%, lap 3: 38.9%) and decreased their usage of DPKICK from 27.8% on the first to 16.7% on the final lap. Skiing velocity on flat and intermediate terrain proved to be the best predictor of race performance (p<0.001). In conclusion, during a 15-km classical XC skiing race, velocity and cycle length decreased from the first to the final lap, most extensively on flat terrain and least uphill. Moreover, on the intermediate sections the fast and slow skiers chose to use different techniques.

Indexed as

Athletic PerformanceAdultAnthropometryBiomechanical PhenomenaHumansMaleSkiingTime FactorsYoung Adult

Identifiers

PMID29117228
PMCPMC5678876

What OpenQuestion holds

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LicenceCC BY
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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.