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Physiological determinants of speciality of elite middle- and long-distance runners


Rabadan, M; Díaz, V; Calderon, F J; Benito, P J; Peinado, A B; Maffulli, N (2011). Physiological determinants of speciality of elite middle- and long-distance runners. Journal of Sports Sciences, 29(9):975-982.

Abstract

The aim of this study was to determine which physiological variables predict excellence in middle- and long-distance runners. Forty middle-distance runners (age 23 ± 4 years, body mass 67.2 ± 5.9 kg, stature 1.80 ± 0.05 m, [Vdot]O(2max) 65.9 ± 4.5 ml · kg(-1) · min(-1)) and 32 long-distance runners (age 25 ± 4 years, body mass 59.8 ± 5.1 kg, stature 1.73 ± 0.06 m, [Vdot]O(2max) 71.6 ± 5.0 ml · kg(-1) · min(-1)) competing at international standard performed an incremental running test to exhaustion. Expired gas analysis was performed breath-by-breath and maximum oxygen uptake ([Vdot]O(2max)) and two ventilatory thresholds (VT(1) and VT(2)) were calculated. Long-distance runners presented a higher [Vdot]O(2max) than middle-distance runners when expressed relative to body mass (P < 0.001, d = 1.18, 95% CI [0.68, 1.68]). At the intensities corresponding to VT(1) and VT(2), long-distance runners showed higher values for [Vdot]O(2) expressed relative to body mass or %[Vdot]O(2max), speed and oxygen cost of running (P < 0.05). When oxygen uptake was adjusted for body mass, differences between groups were consistent. Logistic binary regression analysis showed that [Vdot]O(2max) (expressed as l · min(-1) and ml · kg(-1) · min(-1)), [Vdot]O(2VT2) (expressed as ml · kg(-0.94) · min(-1)), and speed at VT(2) (v(VT2)) categorized long-distance runners. In addition, the multivariate model correctly classified 84.7% of the athletes. Thus, [Vdot]O(2max), [Vdot]O(2VT2), and v(VT2) discriminate between elite middle-distance and long-distance runners.

The aim of this study was to determine which physiological variables predict excellence in middle- and long-distance runners. Forty middle-distance runners (age 23 ± 4 years, body mass 67.2 ± 5.9 kg, stature 1.80 ± 0.05 m, [Vdot]O(2max) 65.9 ± 4.5 ml · kg(-1) · min(-1)) and 32 long-distance runners (age 25 ± 4 years, body mass 59.8 ± 5.1 kg, stature 1.73 ± 0.06 m, [Vdot]O(2max) 71.6 ± 5.0 ml · kg(-1) · min(-1)) competing at international standard performed an incremental running test to exhaustion. Expired gas analysis was performed breath-by-breath and maximum oxygen uptake ([Vdot]O(2max)) and two ventilatory thresholds (VT(1) and VT(2)) were calculated. Long-distance runners presented a higher [Vdot]O(2max) than middle-distance runners when expressed relative to body mass (P < 0.001, d = 1.18, 95% CI [0.68, 1.68]). At the intensities corresponding to VT(1) and VT(2), long-distance runners showed higher values for [Vdot]O(2) expressed relative to body mass or %[Vdot]O(2max), speed and oxygen cost of running (P < 0.05). When oxygen uptake was adjusted for body mass, differences between groups were consistent. Logistic binary regression analysis showed that [Vdot]O(2max) (expressed as l · min(-1) and ml · kg(-1) · min(-1)), [Vdot]O(2VT2) (expressed as ml · kg(-0.94) · min(-1)), and speed at VT(2) (v(VT2)) categorized long-distance runners. In addition, the multivariate model correctly classified 84.7% of the athletes. Thus, [Vdot]O(2max), [Vdot]O(2VT2), and v(VT2) discriminate between elite middle-distance and long-distance runners.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Physiology
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:2011
Deposited On:19 Jul 2011 07:32
Last Modified:05 Apr 2016 14:57
Publisher:Taylor & Francis
ISSN:0264-0414
Publisher DOI:10.1080/02640414.2011.571271
PubMed ID:21604227
Permanent URL: http://doi.org/10.5167/uzh-48706

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