Author(s) |
Vassallo, Christian
Kilduff, Liam P
Cummins, Cloe
Murphy, Aron
Gray, Adrian
Waldron, Mark
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Publication Date |
2022-08
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Abstract |
We evaluated the reliability of an over-ground running three-minute all-out test (3MT) and compared this to traditional multiple-visit testing to determine the critical speed (CS) and distance > CS (<i>D</i>'). Using a novel energetics model during the 3MT, critical power (CP) and work > CP (<i>W</i>') were also evaluated for reliability and compared to the multiple-visit tests. Over-ground running speed was measured using Global Positioning Systems during fixed-speed trials on a 400 m track to exhaustion, at four intensities corresponding to: (i) maximal oxygen uptake (V̇<i>O<sub>2max</sub></i>) (V<sub>max</sub>), (ii) 110% V̇<i>O<sub>2max</sub></i>(110%<i>V<sub>max</sub></i>), (iii) Δ70% (i.e. 70% of the difference between gas exchange threshold and V<sub>max</sub>) and (iv) Δ85%. The participants subsequently performed the 3MT across two days to determine its reliability. There were no differences between the multiple-visit testing and the 3MT for CS (<i>P</i> = 0.328) and <i>D</i>′ (<i>P</i> = 0.919); however, CP (<i>P</i> = 0.02) and <i>W</i>′ (<i>P</i> < 0.001) were higher in the 3MT. The reliability of the 3MT was stable (<i>P</i> > 0.05) between trials for all variables, with coefficient of variation ranging from 2.0–8.1%. The current over-ground energetics model can reliably estimate CP and <i>W</i>′ based on GPS speed data during the 3MT, which supports its use for most athletic training and monitoring purposes. The reliability of the over-ground running 3MT for power- and speed-related indices was sufficient to detect typical training adaptations; however, it may overestimate CP (∼ 25 W) and <i>W</i>′ (∼ 7 kJ) compared to multiple-visit tests.
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Citation |
European Journal of Sport Science, 22(8), p. 1211-1221
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ISSN |
1536-7290
1746-1391
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Pubmed ID |
33993836
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Link | |
Publisher |
Taylor & Francis
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Title |
A new energetics model for the assessment of the power-duration relationship during over-ground running
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Type of document |
Journal Article
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Entity Type |
Publication
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