Cycling efficiency in male and female competitive cyclists

Hopker, James G. and Jobson, Simon A. and Carter, Helen and Passfield, Louis (2010) Cycling efficiency in male and female competitive cyclists. Journal of Sports Science and Medicine, 9 . pp. 332-337. ISSN 1303-2968 . (The full text of this publication is not available from this repository)

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Abstract

The aim of this study was to examine differences in cycling efficiency between competitive male and female cyclists. Thirteen trained male (mean + SD: 34 ± 8 yr, 74.1 ± 6.0 kg, Maxi- mum Aerobic Power (MAP) 414 ± 40 W, VO2max 61.3 ± 5.4 ml·kg-1·min-1) and 13 trained female (34 ± 9 yr, 60.1 ± 5.2 kg, MAP 293 ± 22 W, VO2max 48.9 ± 6.1 ml·kg-1·min-1) competitive cyclists completed a cycling test to ascertain their gross effi- ciency (GE). Leg and lean leg volume of all cyclists was also measured. Calculated GE was significantly higher in female cyclists at 150W (22.5 ± 2.1 vs 19.9 ± 1.8%; p < 0.01) and 180W (22.3 ± 1.8 vs 20.4 ± 1.5%; p = 0.01). Cadence was not significantly different between the groups (88 ± 6 vs 91 ± 5 rev·min-1). Lean leg volume was significantly lower for female cyclists (4.04 ± 0.5 vs 5.51 ± 0.8 dm3; p < 0.01) and was in- versely related to GE in both groups at 150 and 180W (r = -0.59 and -0.58; p < 0.05). Lean leg volume was shown to account for the differences in GE between the males and females. During an “unloaded” pedalling condition, male cyclists had a significantly higher O2 cost than female cyclists (1.0 ± 0.1 vs 0.7 ± 0.1 L·min- 1; p < 0.01), indicative of a greater non-propulsive cost of cycling. These results suggest that differences in efficiency between trained male and female cyclists can be partly accounted for by sex-specific variation in lean leg volume.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Faculties > Social Sciences > School of Sport and Exercise Studies
Depositing User: James Hopker
Date Deposited: 21 Jan 2011 09:42
Last Modified: 27 Jun 2014 15:05
Resource URI: http://kar.kent.ac.uk/id/eprint/26275 (The current URI for this page, for reference purposes)
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