Effects of starting strategy on 5-min cycling time-trial performance

Aisbett, Brad, Le Rossignol, Peter, McConell, Glenn K., Abbiss, Chris R. and Snow, Rod 2009, Effects of starting strategy on 5-min cycling time-trial performance, Journal of sports sciences, vol. 27, no. 11, pp. 1201-1209, doi: 10.1080/02640410903114372.

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Title Effects of starting strategy on 5-min cycling time-trial performance
Author(s) Aisbett, BradORCID iD for Aisbett, Brad orcid.org/0000-0001-8077-0272
Le Rossignol, Peter
McConell, Glenn K.
Abbiss, Chris R.
Snow, RodORCID iD for Snow, Rod orcid.org/0000-0002-4796-6916
Journal name Journal of sports sciences
Volume number 27
Issue number 11
Start page 1201
End page 1209
Total pages 9
Publisher Routledge
Place of publication London, England
Publication date 2009-09
ISSN 0264-0414
Keyword(s) Pacing
High intensity
Summary The importance of pacing for middle-distance performance is well recognized, yet previous research has produced equivocal results. Twenty-six trained male cyclists ( V O2peak 62.8+5.9 ml ·kg-1 · min-1· maximal aerobic power output 340+43 W; mean+s) performed three cycling time-trials where the total external work (102.7+13.7 kJ) for each trial was identical to the best of two 5-min habituation trials. Markers of aerobic and anaerobic metabolism were assessed in 12 participants. Power output during the first quarter of the time-trials was fixed to control external mechanical work done (25.7+3.4 kJ) and induce fast-, even-, and slow-starting strategies (60, 75, and 90 s, respectively). Finishing times for the fast-start time-trial (4:53+0:11 min:s) were shorter than for the even-start (5:04+0:11 min:s; 95% CI=5 to 18 s, effect size=0.65, P 50.001) and slow-start time-trial (5:09+0:11 min:s; 95% CI=7 to 24 s, effect size=1.00, P 50.001). Mean VO2 during the fast-start trials (4.31+0.51 litres · min-1) was 0.18+0.19 litres · min-1 (95% CI=0.07 to 0.30 litres · min-1, effect size=0.94, P =0.003) higher than the even- and 0.18+0.20 litres · min-1 (95% CI=0.5 to 0.30 litres · min-1, effect size=0.86, P =0.007) higher than the slow-start time-trial. Oxygen deficit was greatest during the first quarter of the fast-start trial but was lower than the even- and slow-start trials during the second quarter of the trial. Blood lactate and pH were similar between the three trials. In conclusion, performance during a 5-min cycling time-trial was improved with the adoption of a fast- rather than an even- or slow-starting strategy.
Language eng
DOI 10.1080/02640410903114372
Field of Research 110602 Exercise Physiology
Socio Economic Objective 970106 Expanding Knowledge in the Biological Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2009, Taylor & Francis
Persistent URL http://hdl.handle.net/10536/DRO/DU:30028687

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