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Sports 2015, 3(4), 358-368; doi:10.3390/sports3040358

Reliability of the Single-Visit Field Test of Critical Speed in Trained and Untrained Adolescents

1
Faculty of Sport and Exercise Sciences, University of Applied Sciences Wiener Neustadt, Johannes Gutenberg Str. 3, Wiener Neustadt A-2700, Austria
2
Children’s Health and Exercise Research Centre, Sport and Health Sciences, University of Exeter, St Luke’s Campus, Heavitree Road, Exeter EX1 2LU, Devon, UK
These authors contributed equally to this work
*
Author to whom correspondence should be addressed.
Academic Editor: Eling de Bruin
Received: 27 October 2015 / Revised: 2 December 2015 / Accepted: 3 December 2015 / Published: 8 December 2015
(This article belongs to the Special Issue Paediatric Exercise Physiology)
View Full-Text   |   Download PDF [315 KB, uploaded 8 December 2015]   |  

Abstract

Recent studies in adults have shown that the critical intensity during running and cycling estimated from three prediction trials interspersed by 30 min is valid and reliable. To establish the reliability of the single-visit field test to determine critical speed (CS) and the distance above critical speed (D′) in adolescents, 29 trained and 14 untrained participants (mean ± SD age: 17.5 ± 0.5 years) performed three tests on a 400-m outdoor track separated by 48 h. Each test consisted of three distances selected to result in finishing times between 2 and 15 min that must be completed as fast as possible. CS and D′ were modeled using the linear 1/time model (Speed = D′(1/t) + CS). While the coefficient of variation (CV) of CS was between 2.4% and 4.3%, the CV of D′ was 9.3% to 13.6%. Also the intraclass correlation coefficient ranged from 0.919 to 0.983 for CS and from 0.325 to 0.828 for D′. The results show that the single-visit field test provides reliable estimates of CS but not D′ in trained and untrained adolescents. View Full-Text
Keywords: critical power; field test; youth athletes; test-retest reliability critical power; field test; youth athletes; test-retest reliability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nimmerichter, A.; Steindl, M.; Williams, C.A. Reliability of the Single-Visit Field Test of Critical Speed in Trained and Untrained Adolescents. Sports 2015, 3, 358-368.

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