Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/327954
Type: Artigo
Title: Influence Of An Enforced Fast Start On 10-km-running Performance
Author: do Carmo
Everton C.; Barroso
Renato; Renfree
Andrew; Gil
Saulo; Tricoli
Valmor
Abstract: The effects of an enforced fast start on long-distance performance are controversial and seem to depend on the athlete's capacity to delay and tolerate metabolic disruption. The aim of this study was to investigate the effects of an enforced start on 10-km-running performance and the influence of the some physiological and performance variables on the ability to tolerate an enforced fast start during the running. Fifteen moderately trained runners performed two 10-km time trials (TTs): free pacing (FP-TT) and fast start (FS-TT). During FS-TT, speed during the first kilometer was 6% higher than in FP-TT. Maximal oxygen uptake (VO2max), peak velocity (PV), velocity associated with VO2max (nu VO2max), ventilatory threshold, and running economy at 10 and 12 km/h and FP-TT average velocity (AV-10 kin) were individually deteiuiined. There were no differences between FP-TT and FS-TT performance (45:01 +/- 4:08 vs 45:11 +/- 4:46 min:s, respectively, P =.4). Eight participants improved (+2.2%) their performance and were classified as positive responders (PR) and 7 decreased (-3.3%) performance and were classified as negative responders (NR). Running speed was significantly higher for PR between 6 and 9.2 km (P <.05) during FS-TT. In addition, PR presented higher PV (P =.02) and nu VO2max(P =.01) than NR, suggesting that PV and nu VO2max might influence the ability to tolerate a fast-start strategy. In conclusion, there was an individual response to the enforced fast-start strategy during 10-km running, and those who improved performance also presented higher nu VO2max and PV, suggesting a possible association between these variables and response to the strategy adopted.
Subject: Exercise Performance
Pacing Strategy
Peak Of Velocity
Endurance Training
Editor: Human Kinetics Publ Inc
Champaign
Citation: International Journal Of Sports Physiology And Performance. Human Kinetics Publ Inc, v. 11, p. 736 - 741, 2016.
Rights: fechado
Identifier DOI: 10.1123/ijspp.2015-0397
Address: http://journals.humankinetics.com/doi/abs/10.1123/ijspp.2015-0397
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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