Augmenting performance feedback does not affect 4 km cycling time-trials in the heat
Deutscher übersetzter Titel: | Intensivierung des Leistungsfähigkeitsfeedbacks hat keinen Einfluss auf die Leistung im 4km-Zeitfahren im Radsport bei großer Hitze |
---|---|
Autor: | Waldron, Mark; Villerius, Vincent; Murphy, Aron |
Erschienen in: | Journal of sports sciences |
Veröffentlicht: | 33 (2015), 8, S. 786-794, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0264-0414, 1466-447X |
DOI: | 10.1080/02640414.2014.962579 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201504002922 |
Quelle: | BISp |
Abstract
We compared the effects of (1) accurate and (2) surreptitiously augmented performance feedback on power output and physiological responses to a 4000 m time-trial in the heat. Nine cyclists completed a baseline (BaseL) 4000 m time-trial in ambient temperatures of 30°C, followed by two further 4000 m time-trials at the same temperature, randomly assigning the participants to an accurate (ACC; accurate feedback of baseline) or deceived (DEC; 2% increase above baseline) feedback group. The total power output (PO) and aerobic (Paer) and anaerobic (Pan) contributions were determined at 0.4 km stages during the time-trials, alongside measurements of rectal (Trec) and skin (Tskin) temperatures. There were no differences (P > 0.05) in any of the variables between BaseL, ACC and DEC, despite increases (P < 0.05) in Trec and Tskin. Typical pacing profiles were demonstrated; however, there was no interaction (P > 0.05) between feedback condition and time-trial stage. Providing surreptitiously augmented performance feedback to well-trained cyclists did not alter their performance or physiological responses to a 4000 m time-trial in a hot environment. The assumed influence of augmented performance feedback was nullified in the heat, perhaps reflecting a central down-regulation of exercise intensity in response to an increased body temperature. Verf.-Referat