{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T22:31:31Z","timestamp":1790634691717,"version":"4.1.0"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Sports Med"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This study aimed to determine mountain ultra-marathon (MUM) performance factors in a large group of endurance mountain runners. Maximal aerobic speed (MAS) was assessed one week prior to the MUM. The level and graded (10%) energy cost of running, stiffness, knee extensors force (KEf), and jump height on a counter movement jump (CMJ) were measured in 24 male ultra runners before (pre) and immediately after (post) the Interlacs Trail (75\u2009km and 3\u2009930\/3\u2009700 m d+\/d\u2212). Performance time was correlated with MAS (r=\u2212\u20090.74, p&lt;0.001), fraction of MAS (FMAS) sustained (r=\u2212\u20090.89, p&lt;0.001), KEf (r=\u2212\u20090.51, p&lt;0.05), and KEf loss (r=\u2212\u20090.51, p&lt;0.05). A multiple regression analysis was performed using performance time in minutes (T) and the calculated individual characteristics, resulting in T=\u2212\u200911.852\u00d7FMAS\u221237.195\u00d7MAS\u22120.118\u00d7KEf+2090.581 (R2=0.98, with 95% confidence interval). Contrary to expectations, performance was neither correlated to the level or uphill energy cost of running nor to the changes of these costs post-MUM. To perform in a MUM, training should take into account muscle strength of the KE, MAS and FMAS.<\/jats:p>","DOI":"10.1055\/s-0043-112342","type":"journal-article","created":{"date-parts":[[2017,8,11]],"date-time":"2017-08-11T05:25:59Z","timestamp":1502429159000},"page":"819-826","source":"Crossref","is-referenced-by-count":74,"title":["Performance Factors in a Mountain Ultramarathon"],"prefix":"10.1055","volume":"38","author":[{"given":"Pascal","family":"Balducci","sequence":"additional","affiliation":[{"name":"Univ Lyon \u2013 University Claude Bernard Lyon 1, EA 7424 \u2013 Inter-university Laboratory of Human Movement Science"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel","family":"Cl\u00e9men\u00e7on","sequence":"additional","affiliation":[{"name":"Univ Lyon \u2013 University Claude Bernard Lyon 1, EA 7424 \u2013 Inter-university Laboratory of Human Movement Science"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robin","family":"Trama","sequence":"additional","affiliation":[{"name":"Univ Lyon \u2013 University Claude Bernard Lyon 1, EA 7424 \u2013 Inter-university Laboratory of Human Movement Science"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoann","family":"Blache","sequence":"additional","affiliation":[{"name":"Univ Lyon \u2013 University Claude Bernard Lyon 1, EA 7424 \u2013 Inter-university Laboratory of Human Movement Science"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christophe","family":"Hautier","sequence":"additional","affiliation":[{"name":"Univ Lyon \u2013 University Claude Bernard Lyon 1, EA 7424 \u2013 Inter-university Laboratory of Human Movement Science"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2017,8,10]]},"container-title":["International Journal of Sports Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/s-0043-112342.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,12,19]],"date-time":"2017-12-19T12:52:29Z","timestamp":1513687949000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/s-0043-112342"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,8,10]]},"references-count":0,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2017,10,6]]},"published-print":{"date-parts":[[2017,10]]}},"URL":"https:\/\/doi.org\/10.1055\/s-0043-112342","relation":{},"ISSN":["0172-4622","1439-3964"],"issn-type":[{"value":"0172-4622","type":"print"},{"value":"1439-3964","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,8,10]]}}}