{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T11:31:34Z","timestamp":1789558294101,"version":"build-2803163510"},"reference-count":44,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,8,12]],"date-time":"2012-08-12T00:00:00Z","timestamp":1344729600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Scandinavian Med Sci Sports"],"published-print":{"date-parts":[[2014,4]]},"abstract":"<jats:p>Contracting the knee flexor muscles immediately before a maximum voluntary contraction (<jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>) of knee extension increases the maximal force that the extensor muscles can exert. It is hypothesized that this phenomenon can be impaired by muscle fiber damage following eccentric exercise [delayed onset muscle soreness (<jats:styled-content style=\"fixed-case\">DOMS<\/jats:styled-content>)]. This study investigates the effect of eccentric exercise and <jats:styled-content style=\"fixed-case\">DOMS<\/jats:styled-content> on knee extension <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> immediately following a reciprocal\u2010resisted knee flexion contraction. Electromyography (<jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content>) was recorded from the knee extensors and flexors of 12 healthy men during knee extension <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content>s performed in a reciprocal (maximal knee extension preceded by resisted knee flexion), and nonreciprocal condition (preceded by relaxation of the knee flexors). At baseline, knee extension <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> force was greater during the reciprocal condition (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>\u2009&lt;\u20090.001), whereas immediately after, 24 and 48\u2009h after eccentric exercise, the <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> force was not different between conditions. Similarly, at baseline, the <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> amplitude of the quadriceps during the <jats:styled-content style=\"fixed-case\">MVC<\/jats:styled-content> was larger for the reciprocal condition (<jats:italic><jats:styled-content style=\"fixed-case\">P<\/jats:styled-content><\/jats:italic>\u2009&lt;\u20090.001). However, immediately after, 24 and 48\u2009h postexercise the <jats:styled-content style=\"fixed-case\">EMG<\/jats:styled-content> amplitude was similar between conditions. In conclusion, eccentric exercise abolished the facilitation of force production for the knee extensors, which normally occurs when maximum knee extension is preceded by activation of the knee flexors.<\/jats:p>","DOI":"10.1111\/j.1600-0838.2012.01512.x","type":"journal-article","created":{"date-parts":[[2012,8,13]],"date-time":"2012-08-13T02:39:17Z","timestamp":1344825557000},"page":"355-362","source":"Crossref","is-referenced-by-count":10,"title":["Facilitation of quadriceps activation is impaired following eccentric exercise"],"prefix":"10.1111","volume":"24","author":[{"given":"N.","family":"Hedayatpour","sequence":"first","affiliation":[{"name":"Department of Physical Education and Sport Science University of Bojnord  Bojnord Iran"},{"name":"Department of Health Science and Technology Center for Sensory\u2010Motor Interaction (SMI) Aalborg University  Aalborg Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L.","family":"Arendt\u2010Nielsen","sequence":"additional","affiliation":[{"name":"Department of Health Science and Technology Center for Sensory\u2010Motor Interaction (SMI) Aalborg University  Aalborg Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.","family":"Falla","sequence":"additional","affiliation":[{"name":"Pain Clinic Center for Anesthesiology Emergency and Intensive Care Medicine University Hospital G\u00f6ttingen  G\u00f6ttingen Germany"},{"name":"Department of Neurorehabilitation Engineering Bernstein Focus Neurotechnology (BFNT) G\u00f6ttingen Bernstein Center for Computational Neuroscience University Medical Center G\u00f6ttingen Georg\u2010August University  G\u00f6ttingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,8,12]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"crossref","first-page":"1239","DOI":"10.1093\/ptj\/66.8.1239","article-title":"Effect of resisted knee flexion on knee extension torque","volume":"66","author":"Bohannon RW","year":"1986","journal-title":"Phys Ther"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1990.sp018007"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00221-003-1544-z"},{"key":"e_1_2_8_5_1","doi-asserted-by":"crossref","first-page":"911","DOI":"10.1152\/jappl.1992.73.3.911","article-title":"Adaptations in coactivation after isometric resistance training","volume":"7","author":"Carolan B","year":"1992","journal-title":"J Appl Physiol"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-3959(96)03165-X"},{"key":"e_1_2_8_7_1","first-page":"675","article-title":"Tonic descending inhibition of spinal cord neurones driven by joint afferents in normal cats and in cats with an inflamed knee joint","volume":"83","author":"Cevero F","year":"1991","journal-title":"Exp Brain Res"},{"key":"e_1_2_8_8_1","first-page":"571","article-title":"Reciprocal inhibition in man","volume":"40","author":"Crone C","year":"1993","journal-title":"Dan Med Bull"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1050-6411(96)00034-X"},{"key":"e_1_2_8_10_1","first-page":"235","article-title":"Conditions of isokinetic knee flexion that enhance isokinetic knee extension","volume":"22","author":"Grabiner MD","year":"1990","journal-title":"Med Sci Sports Exerc"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.10225"},{"key":"e_1_2_8_12_1","doi-asserted-by":"crossref","first-page":"1072","DOI":"10.1093\/ptj\/54.10.1072","article-title":"Use of proprioceptive stimuli in therapeutic exercise","volume":"54","author":"Griffin JW","year":"1974","journal-title":"Phys Ther"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.3109\/17453677208991252"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1986.sp016303"},{"key":"e_1_2_8_15_1","first-page":"233","volume-title":"Therapeutic exercise: moving toward function","author":"Hanson C","year":"1999"},{"key":"e_1_2_8_16_1","first-page":"110","volume-title":"Therapeutic exercise","author":"Harris FA","year":"1984"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jelekin.2011.11.010"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0838.2008.00866.x"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1249\/MSS.0b013e3181a3a505"},{"key":"e_1_2_8_20_1","first-page":"521","article-title":"Studies on neuromuscular dysfunction. 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