HETTINGA, FLORENTINA J and DE KONING, JOS J and MEIJER, EMIEL and TEUNISSEN, LENNART and FOSTER, CARL (2007) Effect of Pacing Strategy on Energy Expenditure during a 1500-m Cycling Time Trial. Medicine & Science in Sports & Exercise, 39 (12). pp. 2212-2218. DOI https://doi.org/10.1249/mss.0b013e318156e8d4
HETTINGA, FLORENTINA J and DE KONING, JOS J and MEIJER, EMIEL and TEUNISSEN, LENNART and FOSTER, CARL (2007) Effect of Pacing Strategy on Energy Expenditure during a 1500-m Cycling Time Trial. Medicine & Science in Sports & Exercise, 39 (12). pp. 2212-2218. DOI https://doi.org/10.1249/mss.0b013e318156e8d4
HETTINGA, FLORENTINA J and DE KONING, JOS J and MEIJER, EMIEL and TEUNISSEN, LENNART and FOSTER, CARL (2007) Effect of Pacing Strategy on Energy Expenditure during a 1500-m Cycling Time Trial. Medicine & Science in Sports & Exercise, 39 (12). pp. 2212-2218. DOI https://doi.org/10.1249/mss.0b013e318156e8d4
Abstract
PURPOSE: A critical assumption in modeling optimal pacing strategy is that the amount of anaerobic energy that can be produced during a time trial is a constant value, independent of pacing strategy. To test this assumption, the effect of manipulations of pacing strategy on anaerobic work produced during a 1500-m cycling time trial was studied. Additionally, the effect of pacing strategy on aerobic and total work was studied. METHODS: Nine well-trained cyclists performed three 1500-m cycle ergometer time trials with different strategies (conservative (SUB), even paced (EVEN), and aggressive (SUPRA)). Anaerobic work, aerobic work, and total work were calculated on the basis of V̇O2, RER, gross efficiency, and external power output. RESULTS: ANOVA showed that total anaerobic work did not differ per strategy (EVEN: 27,604 ± 1103 J, SUB: 26,495 ± 1958 J, and SUPRA: 26,949 ± 2062 J). No differences in aerobic work (EVEN: 28,266 ± 1623 J,SUB: 27,950 ± 1418 J, SUPRA: 27,844 ± 1965 J) were evident, either. Subjects were able to accomplish significantly (P < 0.05) more total work during EVEN (55,870 ± 2245 J) than during SUB and SUPRA (54,444 ± 2306 and 54,794 ± 2402 J, respectively). CONCLUSION: No difference in anaerobic and aerobic work was found per pacing strategy. Though relevant for sports performance, the differences in total work were relatively small (∼2%), considering the broad range of imposed strategies. The assumption that anaerobic work is a constant value, independent of pacing strategy, seems valid in the range of different strategies that are currently simulated in the energy flow models. ©2007The American College of Sports Medicine.
Item Type: | Article |
---|---|
Uncontrolled Keywords: | Humans; Exercise; Analysis of Variance; Behavior; Energy Metabolism; Anaerobic Threshold; Time Factors; Bicycling; Adolescent; Adult; Male |
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: | 03 Feb 2015 13:55 |
Last Modified: | 23 Oct 2024 05:23 |
URI: | http://repository.essex.ac.uk/id/eprint/8283 |