Effects of optimal pacing strategies for 400-, 800-, and 1500-m races on the [Vdot]O2 response
Deutscher übersetzter Titel: | Effekte einer optimalen Tempostrategie bei 400-, 800-, und 1500-m-Läufen auf die VO2-Ausprägung |
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Autor: | Hanon, Christine; Thomas, Claire |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 29 (2011), 9, S. 905-912, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2011.562232 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201404003947 |
Quelle: | BISp |
Abstract
The aim of this study was to compare the evolution of oxygen uptake (VO2) in specifically trained runners during running tests based on the 400-, 800-, and 1500-m pacing strategies adopted by elite runners to optimize performance. Final velocity decreased significantly for all three distances, with the slowest velocity in the last 100 m expressed relative to the peak velocity observed in the 400 m (77%), 800 m (88%), and 1500 m (96%). Relative to the previously determined VO2max values, the respective VO2peak corresponded to 94% (400 m) and 100% (800 and 1500 m). In the last 100 m, a decrease in VO2 was observed in all participants for the 400-m (15.6 ± 6.5%) and 800-m races (9.9 ± 6.3%), whereas a nonsystematic decrease (3.6 ± 7.6%) was noted for the 1500 m. The amplitude of this decrease was correlated with the reduction in tidal volume recorded during the last 100 m of each distance (r=0.85, P < 0.0001) and with maximal blood lactate concentrations after the three races (r=0.55, P < 0.005). The present data demonstrate that the 800 m is similar to the 400 m in terms of decreases in velocity and VO2. Verf.-Referat