Hettinga, FJ and de Koning, JJ and Hulleman, M and Foster, C (2012) Relative importance of pacing strategy and mean power output in 1500-m self-paced cycling. British Journal of Sports Medicine, 46 (1). pp. 30-35. DOI https://doi.org/10.1136/bjsm.2009.064261
Hettinga, FJ and de Koning, JJ and Hulleman, M and Foster, C (2012) Relative importance of pacing strategy and mean power output in 1500-m self-paced cycling. British Journal of Sports Medicine, 46 (1). pp. 30-35. DOI https://doi.org/10.1136/bjsm.2009.064261
Hettinga, FJ and de Koning, JJ and Hulleman, M and Foster, C (2012) Relative importance of pacing strategy and mean power output in 1500-m self-paced cycling. British Journal of Sports Medicine, 46 (1). pp. 30-35. DOI https://doi.org/10.1136/bjsm.2009.064261
Abstract
<jats:sec><jats:title>Introduction</jats:title><jats:p>Both mean power output (MPO) and the distribution of the available energy over the race, that is, pacing strategy, are critical factors in performance. The purpose of this study was to determine the relative importance of both pacing strategy and MPO to performance.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Six well-trained, regionally competitive cyclists performed four 1500-m ergometer time trials (∼2 min). For each subject, the fastest (Fast) and slowest (Slow) time trials were compared and the relative importance of differences in power output and pacing strategy were determined with an energy flow model.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>The difference in final time between Fast and Slow was 4.0 (2.5) s. Fast was performed with a higher MPO (437.8 (32.3) W vs 411.3 (39.0) W), a higher aerobic peak power (295.3 (36.8) vs 287.5 (34.7) W) and a higher anaerobic peak power (828.8 (145.4) W vs 649.5 (112.2) W) combined with a relatively higher, but not statistically different anaerobic rate constant (0.051 (0.016) vs 0.041 (0.009) W). The changes in MPO (63% anaerobic, 37% aerobic) largely explained the differences in final times. Athletes chose a different pacing strategy that was close to optimal for their physiological condition in both Fast and Slow.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>Differences in intraindividual performance were mainly caused by differences in MPO. Athletes seemed to be able to effectively adjust their pacing profile based on their “status of the day”.</jats:p></jats:sec><jats:sec><jats:title>Keywords</jats:title><jats:p>modelling performance, energy expenditure, aerobic, anaerobic, sports.</jats:p></jats:sec>
Item Type: | Article |
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Uncontrolled Keywords: | modelling performance; energy expenditure; aerobic; anaerobic; sports |
Subjects: | R Medicine > RC Internal medicine > RC1200 Sports Medicine |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Sport, Rehabilitation and Exercise Sciences, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 09 Nov 2013 16:13 |
Last Modified: | 07 Aug 2024 20:26 |
URI: | http://repository.essex.ac.uk/id/eprint/8279 |