{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,4]],"date-time":"2026-04-04T06:29:57Z","timestamp":1775284197887,"version":"3.50.1"},"reference-count":22,"publisher":"IEEE","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2004]]},"DOI":"10.1109\/robot.2004.1302453","type":"proceedings-article","created":{"date-parts":[[2004,6,10]],"date-time":"2004-06-10T14:19:45Z","timestamp":1086877185000},"page":"4662-4667 Vol.5","source":"Crossref","is-referenced-by-count":132,"title":["An actuator with physically variable stiffness for highly dynamic legged locomotion"],"prefix":"10.1109","author":[{"given":"J.W.","family":"Hurst","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J.E.","family":"Chestnutt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.A.","family":"Rizzi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"263","reference":[{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1177\/027836498400300202"},{"key":"ref11","first-page":"15","article-title":"Interaction of leg stiffness and surface stiffness during human hopping","author":"ferris","year":"1997","journal-title":"Amer Phys Soc"},{"key":"ref12","first-page":"1044","article-title":"Mechanism of leg stiffness adjustment for hopping on surfaces of different stiffnesses","author":"farley","year":"1998","journal-title":"Amer Phys Soc"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1998.0388"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(79)90057-5"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"2326","DOI":"10.1152\/jappl.1987.62.6.2326","article-title":"Groucho running","volume":"62","author":"mcmahon","year":"1987","journal-title":"Journal of Applied Physiology"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"263","DOI":"10.1242\/jeb.115.1.263","article-title":"The role of compliance in mammalian running gaits","volume":"115","author":"mcmahon","year":"1985","journal-title":"Journal of Experimental Biology"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(95)00029-1"},{"key":"ref18","doi-asserted-by":"crossref","first-page":"71","DOI":"10.1242\/jeb.185.1.71","article-title":"Running springs: Speed and animal size","volume":"185","author":"farley","year":"1993","journal-title":"Journal of Experimental Biology"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1109\/70.88138"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-2104-3_13"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(90)90042-2"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1038\/422493a"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1007\/BF00197760"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"279","DOI":"10.1152\/jappl.1970.29.3.279","article-title":"Elastic bounce of the body","volume":"29","author":"cavagna","year":"1970","journal-title":"Journal of Applied Physiology"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1976.sp011613"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016\/0021-9290(89)90224-8"},{"key":"ref1","first-page":"1986","article-title":"Characterization of monopod equilibrium gaits","author":"schwind","year":"1997","journal-title":"Proceedings of the 1997 IEEE Intemational Conference on Robotics and Automation"},{"key":"ref9","article-title":"Mechanical work in terrestrial locomotion: Two basic mechanisms for minimizing energy expenditure","volume":"233","author":"cavagna","year":"1977","journal-title":"American Journal of Physics"},{"key":"ref20","first-page":"241","author":"chironis","year":"1965","journal-title":"Mechanics Linkages and Mechanical Controls"},{"key":"ref22","author":"raibert","year":"1986","journal-title":"Legged Robots That Balance"},{"key":"ref21","first-page":"1390","article-title":"Mechanical bandwidth as a guidline to high-performance manipulator design","author":"townsend","year":"1989","journal-title":"IEEE"}],"event":{"name":"IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004","location":"New Orleans, LA, USA","start":{"date-parts":[[2004,4,26]]},"end":{"date-parts":[[2004,5,1]]}},"container-title":["IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004"],"original-title":[],"link":[{"URL":"http:\/\/xplorestaging.ieee.org\/ielx5\/9126\/28923\/01302453.pdf?arnumber=1302453","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,6,23]],"date-time":"2021-06-23T05:50:39Z","timestamp":1624427439000},"score":1,"resource":{"primary":{"URL":"http:\/\/ieeexplore.ieee.org\/document\/1302453\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004]]},"references-count":22,"URL":"https:\/\/doi.org\/10.1109\/robot.2004.1302453","relation":{},"subject":[],"published":{"date-parts":[[2004]]}}}