Influence of the world's most challenging mountain ultra-marathon on energy cost and running mechanics

Details

Serval ID
serval:BIB_F205941727B1
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Influence of the world's most challenging mountain ultra-marathon on energy cost and running mechanics
Journal
European Journal of Applied Physiology
Author(s)
Vernillo G., Savoldelli A., Zignoli A., Trabucchi P., Pellegrini B., Millet G.P., Schena F.
ISSN
1439-6327
ISSN-L
1439-6319
Publication state
Published
Issued date
2014
Volume
114
Number
5
Pages
929-939
Language
english
Notes
Publication types: Journal Article Publication Status: ppublishPDF : Original article
Abstract
PURPOSE: To examine the effects of the world's most challenging mountain ultra-marathon (Tor des Géants(®) 2012) on the energy cost of three types of locomotion (cycling, level and uphill running) and running kinematics.
METHODS: Before (pre-) and immediately after (post-) the competition, a group of ten male experienced ultra-marathon runners performed in random order three submaximal 4-min exercise trials: cycling at a power of 1.5 W kg(-1) body mass; level running at 9 km h(-1) and uphill running at 6 km h(-1) at an inclination of +15 % on a motorized treadmill. Two video cameras recorded running mechanics at different sampling rates.
RESULTS: Between pre- and post-, the uphill-running energy cost decreased by 13.8 % (P = 0.004); no change was noted in the energy cost of level running or cycling (NS). There was an increase in contact time (+10.3 %, P = 0.019) and duty factor (+8.1 %, P = 0.001) and a decrease in swing time (-6.4 %, P = 0.008) in the uphill-running condition.
CONCLUSION: After this extreme mountain ultra-marathon, the subjects modified only their uphill-running patterns for a more economical step mechanics.
Pubmed
Web of science
Create date
16/05/2014 16:49
Last modification date
20/08/2019 16:19
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