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Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox

We determined the reliability of a 60-min treadmill protocol in the heat when spaced >4 weeks apart, longer than the test–retest duration of 1 week found in the literature. Nine unacclimated, trained males (age: 31 ± 8 y; VO(2)peak: 60 ± 6 ml∙kg(−1)∙min(−1)) undertook a 15 min self-paced time-tri...

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Detalles Bibliográficos
Autores principales: Mündel, Toby, Gilmour, Simon, Kruger, Marlena, Thomson, Jasmine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10405772/
https://www.ncbi.nlm.nih.gov/pubmed/37554382
http://dx.doi.org/10.1080/23328940.2022.2143168
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author Mündel, Toby
Gilmour, Simon
Kruger, Marlena
Thomson, Jasmine
author_facet Mündel, Toby
Gilmour, Simon
Kruger, Marlena
Thomson, Jasmine
author_sort Mündel, Toby
collection PubMed
description We determined the reliability of a 60-min treadmill protocol in the heat when spaced >4 weeks apart, longer than the test–retest duration of 1 week found in the literature. Nine unacclimated, trained males (age: 31 ± 8 y; VO(2)peak: 60 ± 6 ml∙kg(−1)∙min(−1)) undertook a 15 min self-paced time-trial pre-loaded with 45 min of running at 70% of individual ventilatory threshold (11.2 ± 0.3 km∙h(−1)) in 30 ± 1°C (53 ± 5% relative humidity). They repeated this following 40 ± 14 and 76 ± 26 days, with pre-trial standardization of diet and exercise for 48 h. When considering trial 1 as a familiarization, change in core temperature (∆T(core)) during the first 45 min (∆2.0 ± 0.2°C) between trials 2 and 3 yielded bias and 95% limits of agreement (LoA) of −0.10 ± 0.43°C, standard error of measurement (SEM) of 0.13°C and intraclass correlation coefficient (ICC) of 0.75, more reliable than measures of baseline T(core) (36.9 ± 0.2°C; LoA: −0.23 ± 0.90°C; SEM: 0.22°C; ICC: 0.03) and T(core) at 45 min during exercise (38.9 ± 0.4°C; LoA: 0.32 ± 1.12°C; SEM: 0.28°C; ICC: 0.15). The coefficient of variation (CV) between trials 2 and 3 for distance run during the 15 min time-trial was 2.1 ± 2.0% with LoA of 0.001 ± 0.253 km and SEM of 0.037 km. This protocol is reliable spaced ~5 weeks apart when considering the most commonly accepted limit of <5% CV for performance, reinforced by reliability of the ΔT(core) being 0.1 ± 0.4°C.
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spelling pubmed-104057722023-08-08 Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox Mündel, Toby Gilmour, Simon Kruger, Marlena Thomson, Jasmine Temperature (Austin) Method Article We determined the reliability of a 60-min treadmill protocol in the heat when spaced >4 weeks apart, longer than the test–retest duration of 1 week found in the literature. Nine unacclimated, trained males (age: 31 ± 8 y; VO(2)peak: 60 ± 6 ml∙kg(−1)∙min(−1)) undertook a 15 min self-paced time-trial pre-loaded with 45 min of running at 70% of individual ventilatory threshold (11.2 ± 0.3 km∙h(−1)) in 30 ± 1°C (53 ± 5% relative humidity). They repeated this following 40 ± 14 and 76 ± 26 days, with pre-trial standardization of diet and exercise for 48 h. When considering trial 1 as a familiarization, change in core temperature (∆T(core)) during the first 45 min (∆2.0 ± 0.2°C) between trials 2 and 3 yielded bias and 95% limits of agreement (LoA) of −0.10 ± 0.43°C, standard error of measurement (SEM) of 0.13°C and intraclass correlation coefficient (ICC) of 0.75, more reliable than measures of baseline T(core) (36.9 ± 0.2°C; LoA: −0.23 ± 0.90°C; SEM: 0.22°C; ICC: 0.03) and T(core) at 45 min during exercise (38.9 ± 0.4°C; LoA: 0.32 ± 1.12°C; SEM: 0.28°C; ICC: 0.15). The coefficient of variation (CV) between trials 2 and 3 for distance run during the 15 min time-trial was 2.1 ± 2.0% with LoA of 0.001 ± 0.253 km and SEM of 0.037 km. This protocol is reliable spaced ~5 weeks apart when considering the most commonly accepted limit of <5% CV for performance, reinforced by reliability of the ΔT(core) being 0.1 ± 0.4°C. Taylor & Francis 2022-11-11 /pmc/articles/PMC10405772/ /pubmed/37554382 http://dx.doi.org/10.1080/23328940.2022.2143168 Text en © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) ), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.
spellingShingle Method Article
Mündel, Toby
Gilmour, Simon
Kruger, Marlena
Thomson, Jasmine
Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title_full Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title_fullStr Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title_full_unstemmed Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title_short Reliability of a 60-min treadmill running protocol in the heat: The journal Temperature toolbox
title_sort reliability of a 60-min treadmill running protocol in the heat: the journal temperature toolbox
topic Method Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10405772/
https://www.ncbi.nlm.nih.gov/pubmed/37554382
http://dx.doi.org/10.1080/23328940.2022.2143168
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