European Journal of Sport Science: Video Abstract

Test–retest reliability of physiological parameters in elite junior distance runners following allometric scaling
Richard C. Blagrove, Glyn Howatson & Philip R. Hayes, 2017

DOI: 10.1080/17461391.2017.1364301
@rich_blagrove @EurJSportSci

Please watch the video here.

Video transcript start:

Many thanks for your interest on our recent publication in European Journal of Sport Science, which investigates the liability of several different physiological variables within a group of high performing young distance runners.

The main messages of this paper are that VO2max, beta VO2max and running economy exhibit high levels of reliability and interestingly energy cost, which accounts for differences in substrate utilisation within a measure of running economy demonstrate slightly better reliability than oxygen cost so should be the preferred measure. 

Blood lactate is liable to daily fluctuations of ~0.2 mmol L-1 and heart rate between 4-5 beaths min-1 for the same speed. So speed or heart rate at fixed concentrations of blood lactate offers an alternative marker which appears to provide higher levels of stability.

Video transcript end.

 

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