doi: 10.1098/rspb.2009.1317 , 4279-4285 first published online 16 September 2009 276 2009 Proc. R. Soc. B G. A. Cavagna and M. A. Legramandi different machines with the same motor The bounce of the body in hopping, running and trotting: References http://rspb.royalsocietypublishing.org/content/276/1677/4279.full.html#ref-list-1 This article cites 18 articles, 9 of which can be accessed free This article is free to access Subject collections (179 articles) biophysics Articles on similar topics can be found in the following collections Email alerting service here right-hand corner of the article or click Receive free email alerts when new articles cite this article - sign up in the box at the top http://rspb.royalsocietypublishing.org/subscriptions go to: Proc. R. Soc. B To subscribe to This journal is © 2009 The Royal Society on 11 November 2009 rspb.royalsocietypublishing.org Downloaded from