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Effect of posture on high-intensity constant-load cycling performance in men and women

Egaña, Mikel, Green, Simon, Garrigan, Eoin J. and Warmington, Stuart 2006, Effect of posture on high-intensity constant-load cycling performance in men and women, European journal of applied physiology, vol. 96, no. 1, pp. 1-9, doi: 10.1007/s00421-005-0057-9.

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Title Effect of posture on high-intensity constant-load cycling performance in men and women
Author(s) Egaña, Mikel
Green, Simon
Garrigan, Eoin J.
Warmington, StuartORCID iD for Warmington, Stuart orcid.org/0000-0002-2414-7539
Journal name European journal of applied physiology
Volume number 96
Issue number 1
Start page 1
End page 9
Publisher Springer Berlin / Heidelberg
Place of publication Berlin, Germany
Publication date 2006-01
ISSN 1439-6319
1439-6327
Keyword(s) cycling performance
posture
gender
oxygen consumption
height
Summary The time sustained during a graded cycle exercise is ~10% longer in an upright compared with a supine posture. However, during constant-load cycling this effect is unknown. Therefore, we tested the postural effect on the performance of high-intensity constant-load cycling. Twenty-two active subjects (11 men, 11 women) performed two graded tests (one upright, one supine), and of those 22, 10 subjects (5 men, 5 women) performed three high-intensity constant-load tests (one upright, two supine). To test the postural effect on performance at the same absolute intensity, during the upright and one of the supine constant-load tests subjects cycled at 80% of the peak power output achieved during the upright graded test. To test the postural effect on performance at the same relative intensities, during the second supine test subjects cycled at 80% of the peak power output achieved during the supine graded test. Exercise time on the graded and absolute intensity constant-load tests for all subjects was greater (P<0.05) in the upright compared with supine posture (17.9±3.5 vs. 16.1±3.1 min for graded; 13.2±8.7 vs. 5.2±1.9 min for constant-load). This postural effect at the same absolute intensity was larger in men (19.4±8.5 upright vs. 6.6±1.6 supine, P<0.001) than women (7.1±2 upright vs. 3.9±1.4 supine, P>0.05) and it was correlated (P<0.05) with both the difference in VO2 between positions during the first minute of exercise (r=0.67) and the height of the subjects (r=0.72). In conclusion, there is a very large postural effect on performance during constant-load cycling exercise and this effect is significantly larger in men than women.
Language eng
DOI 10.1007/s00421-005-0057-9
Field of Research 110602 Exercise Physiology
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Springer-Verlag
Persistent URL http://hdl.handle.net/10536/DRO/DU:30021920

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