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Quantification of aerobic determinants of performance in post-pubertal adolescent middle-distance runners.


ABSTRACT: PURPOSE:The use of oxygen cost ([Formula: see text]aero) parameters to predict endurance performance has recently been criticized. Instead, it is suggested that aerobic energy cost ([Formula: see text]) provides greater validity; however, a comparison of these quantification methods has not previously been made. METHODS:Fifty-six male (n?=?34) and female (n?=?22) competitive adolescent (17?±?1 years) middle-distance runners participated in a sub-maximal and maximal incremental treadmill test. Running economy (RE) was measured at the speed corresponding to lactate turnpoint, and the three speeds prior. Maximal oxygen uptake ([Formula: see text]O2max), speed at [Formula: see text]O2max and fraction of [Formula: see text]O2max utilized across a range of intensities, and speeds from 0.8, 1.5 and 3 km races were also quantified. RE and fractional utilization were calculated in units of [Formula: see text]aero and [Formula: see text]aero. RESULTS:Multiple linear regression models demonstrated no discernible difference in the predictive capability of RE, fractional utilization and [Formula: see text]O2max when expressed as [Formula: see text]aero or [Formula: see text]aero in both sexes. When plotted as a function of running speed, [Formula: see text]aero displayed a stepwise decrease (F?=?11.59, p?

SUBMITTER: Blagrove RC 

PROVIDER: S-EPMC6647242 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Quantification of aerobic determinants of performance in post-pubertal adolescent middle-distance runners.

Blagrove Richard C RC   Howatson Glyn G   Pedlar Charles R CR   Hayes Philip R PR  

European journal of applied physiology 20190617 8


<h4>Purpose</h4>The use of oxygen cost ([Formula: see text]<sub>aero</sub>) parameters to predict endurance performance has recently been criticized. Instead, it is suggested that aerobic energy cost ([Formula: see text]) provides greater validity; however, a comparison of these quantification methods has not previously been made.<h4>Methods</h4>Fifty-six male (n = 34) and female (n = 22) competitive adolescent (17 ± 1 years) middle-distance runners participated in a sub-maximal and maximal incr  ...[more]

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