Intra-subject Variability of 5k Time-trial Performance Completed by Competitive Runners

James Fisher, Tom Clark, Katherine Newman-Judd, Josh Arnold, James Steele

Research output: Contribution to journalArticle

Abstract

Time-trials (TTs) represent an ecologically valid approach to assessment of endurance performance. With no previous research available, the present study aimed to investigate the intra-subject variability of 5km TT running performance in moderately trained runners. Such information is useful in the application of testing protocols as well as in the estimation of sample sizes required for scientific research as per statistical significance and magnitude based inference methods. Six competitive moderately trained male runners completed an incremental exercise test to volitional exhaustion followed by 5 x 5 km TTs (including a familiarisation trial), individually spaced by 48 hours. Time taken to complete each trial, heart rate, rating of perceived exertion (RPE) and speed were all assessed. For the primary measure time, results showed a coefficient of variation (CV) score across all participants of 1.5% ± 0.59% with an intra-class correlation coefficient (ICC) score of 0.990. Heart rate, RPE and speed data showed a variance range between 0.8% - 3.05 (CV). It was concluded that when compared with related research, there was an observed low intra-subject variability in trained runners over a 5km distance. This supports the use of this protocol for 5km TT performance for assessment of nutritional strategies, ergogenic aids, or training interventions on endurance running performance.
Original languageEnglish
Pages (from-to)139-146
JournalJournal of Human Kinetics
Volume57
Publication statusPublished - 22 Jun 2017

Fingerprint

Heart Rate
Research
Nutrition Assessment
Exercise Test
Sample Size

Cite this

@article{be54c86c4ded4c628dd3b6ac52f4c880,
title = "Intra-subject Variability of 5k Time-trial Performance Completed by Competitive Runners",
abstract = "Time-trials (TTs) represent an ecologically valid approach to assessment of endurance performance. With no previous research available, the present study aimed to investigate the intra-subject variability of 5km TT running performance in moderately trained runners. Such information is useful in the application of testing protocols as well as in the estimation of sample sizes required for scientific research as per statistical significance and magnitude based inference methods. Six competitive moderately trained male runners completed an incremental exercise test to volitional exhaustion followed by 5 x 5 km TTs (including a familiarisation trial), individually spaced by 48 hours. Time taken to complete each trial, heart rate, rating of perceived exertion (RPE) and speed were all assessed. For the primary measure time, results showed a coefficient of variation (CV) score across all participants of 1.5{\%} ± 0.59{\%} with an intra-class correlation coefficient (ICC) score of 0.990. Heart rate, RPE and speed data showed a variance range between 0.8{\%} - 3.05 (CV). It was concluded that when compared with related research, there was an observed low intra-subject variability in trained runners over a 5km distance. This supports the use of this protocol for 5km TT performance for assessment of nutritional strategies, ergogenic aids, or training interventions on endurance running performance.",
author = "James Fisher and Tom Clark and Katherine Newman-Judd and Josh Arnold and James Steele",
year = "2017",
month = "6",
day = "22",
language = "English",
volume = "57",
pages = "139--146",
journal = "Journal of Human Kinetics",
issn = "1640-5544",
publisher = "Polish Academy of Science, Committee of Physical Culture",

}

Intra-subject Variability of 5k Time-trial Performance Completed by Competitive Runners. / Fisher, James; Clark, Tom; Newman-Judd, Katherine; Arnold, Josh; Steele, James.

In: Journal of Human Kinetics, Vol. 57, 22.06.2017, p. 139-146.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Intra-subject Variability of 5k Time-trial Performance Completed by Competitive Runners

AU - Fisher, James

AU - Clark, Tom

AU - Newman-Judd, Katherine

AU - Arnold, Josh

AU - Steele, James

PY - 2017/6/22

Y1 - 2017/6/22

N2 - Time-trials (TTs) represent an ecologically valid approach to assessment of endurance performance. With no previous research available, the present study aimed to investigate the intra-subject variability of 5km TT running performance in moderately trained runners. Such information is useful in the application of testing protocols as well as in the estimation of sample sizes required for scientific research as per statistical significance and magnitude based inference methods. Six competitive moderately trained male runners completed an incremental exercise test to volitional exhaustion followed by 5 x 5 km TTs (including a familiarisation trial), individually spaced by 48 hours. Time taken to complete each trial, heart rate, rating of perceived exertion (RPE) and speed were all assessed. For the primary measure time, results showed a coefficient of variation (CV) score across all participants of 1.5% ± 0.59% with an intra-class correlation coefficient (ICC) score of 0.990. Heart rate, RPE and speed data showed a variance range between 0.8% - 3.05 (CV). It was concluded that when compared with related research, there was an observed low intra-subject variability in trained runners over a 5km distance. This supports the use of this protocol for 5km TT performance for assessment of nutritional strategies, ergogenic aids, or training interventions on endurance running performance.

AB - Time-trials (TTs) represent an ecologically valid approach to assessment of endurance performance. With no previous research available, the present study aimed to investigate the intra-subject variability of 5km TT running performance in moderately trained runners. Such information is useful in the application of testing protocols as well as in the estimation of sample sizes required for scientific research as per statistical significance and magnitude based inference methods. Six competitive moderately trained male runners completed an incremental exercise test to volitional exhaustion followed by 5 x 5 km TTs (including a familiarisation trial), individually spaced by 48 hours. Time taken to complete each trial, heart rate, rating of perceived exertion (RPE) and speed were all assessed. For the primary measure time, results showed a coefficient of variation (CV) score across all participants of 1.5% ± 0.59% with an intra-class correlation coefficient (ICC) score of 0.990. Heart rate, RPE and speed data showed a variance range between 0.8% - 3.05 (CV). It was concluded that when compared with related research, there was an observed low intra-subject variability in trained runners over a 5km distance. This supports the use of this protocol for 5km TT performance for assessment of nutritional strategies, ergogenic aids, or training interventions on endurance running performance.

M3 - Article

VL - 57

SP - 139

EP - 146

JO - Journal of Human Kinetics

JF - Journal of Human Kinetics

SN - 1640-5544

ER -