{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T01:23:56Z","timestamp":1775179436399,"version":"3.50.1"},"reference-count":0,"publisher":"Termedia Sp. z.o.o.","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2013,6,1]]},"abstract":"<jats:p>The aim of this study was to assess the reliability of isokinetic and ISO knee extensor and flexor muscle strength when using the REV9000 (Technogym) isokinetic dynamometer. Moreover, the reliability of several strength imbalance indices and bilateral ratios were also examined. Twenty-four physically active healthy subjects (age 23\u00b13 years) underwent three testing sessions, two on the same day and a third, 7 days later. All sessions proceeded in the same order: five concentric contractions at 60\u00bas-1 followed by an isometric contraction (5 seconds) and five eccentric contractions (60\u00bas-1). The results of this study showed a high reproducibility in eccentric (0.95-0.97), concentric (0.95- 0.96) and isometric (0.93-0.96), isokinetic strength for knee extensor and flexor muscles, thus indicating that the REV9000 isokinetic dynamometer can be used in future sports performance studies. A low-to-moderate reliability was found in the isokinetic strength bilateral ratios while the Hamstring:Quadricep concentric ratio showed moderate reliability. The highest reliability (&gt;0.90) was observed in the dynamic control ratio (Hamstring eccentric:Quadricep concentric) which consequently confirms that it is a more valid indicator for imbalanced reciprocal parameters and can be used in rehabilitation and sports medicine.<\/jats:p>","DOI":"10.2478\/hukin-2013-0024","type":"journal-article","created":{"date-parts":[[2013,7,4]],"date-time":"2013-07-04T08:52:39Z","timestamp":1372927959000},"page":"47-53","source":"Crossref","is-referenced-by-count":49,"title":["Reliability of Concentric, Eccentric and Isometric Knee Extension and Flexion when using the REV9000 Isokinetic Dynamometer"],"prefix":"10.5114","volume":"37","author":[{"given":"Alberto C\u00e9sar","family":"Pereira de Carvalho Froufe Andrade","sequence":"first","affiliation":[{"name":"1Research Center in Sports Science, Health and Human Development (CIDESD), Portugal"},{"name":"2High Institute of Maia (ISMAI), Portugal, Adress: ISMAI - Instituto Superior da Maia. Av. Carlos Oliveira Campos - Castelo da Maia. 4475-690 Avioso S. Pedro Phone: +351 229 825 319 ; Fax: +351 229 825 331"}]},{"given":"Paolo","family":"Caserotti","sequence":"additional","affiliation":[{"name":"3University of Southern Denmark, Institute of Sports Science and Clinical Biomechanics"}]},{"given":"Carlos Manuel","family":"Pereira de Carvalho","sequence":"additional","affiliation":[{"name":"4Research Center of Sports Science, Health and Human Development (CIDESD)"},{"name":"5High Institute of Maia (ISMAI), Portugal"}]},{"given":"Eduardo","family":"Andr\u00e9 de Azevedo Abade","sequence":"additional","affiliation":[{"name":"4Research Center of Sports Science, Health and Human Development (CIDESD)"},{"name":"6University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), Portugal"}]},{"given":"Ant\u00f3nio","family":"Jaime da Eira Sampaio","sequence":"additional","affiliation":[{"name":"4Research Center of Sports Science, Health and Human Development (CIDESD)"},{"name":"6University of Tr\u00e1s-os-Montes e Alto Douro (UTAD), Portugal"}]}],"member":"3061","container-title":["Journal of Human Kinetics"],"original-title":[],"link":[{"URL":"https:\/\/content.sciendo.com\/view\/journals\/hukin\/37\/1\/article-p47.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/content.sciendo.com\/downloadpdf\/journals\/hukin\/37\/1\/article-p47.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T11:38:42Z","timestamp":1759923522000},"score":1,"resource":{"primary":{"URL":"https:\/\/johk.pl\/?p=2583"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,6,1]]},"references-count":0,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.2478\/hukin-2013-0024","relation":{},"ISSN":["1899-7562","1640-5544"],"issn-type":[{"value":"1899-7562","type":"electronic"},{"value":"1640-5544","type":"print"}],"subject":[],"published":{"date-parts":[[2013,6,1]]}}}