Eccentric resistance training of the knee extensor muscle: Training programs and neuromuscular adaptations

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dc.contributor.authorManfredini Baroni, Bruno
dc.contributor.authorSilveira Pinto, Ronei
dc.contributor.authorHerzog, Walter
dc.contributor.authorVaz, Marco Aurélio
dc.date.accessioned2018-10-09T20:42:34Z
dc.date.available2018-10-09T20:42:34Z
dc.date.issued2015-01-01
dc.description.abstractPURPOSE: This review is aimed at describing the methods used in knee extensor eccentric resistance training in healthy subjects and at evaluating the adaptations in strength, activation and structure of this muscle group. METHODS: Seventy-five studies were carefully analyzed and 30 are considered in this review. RESULTS: Training programs comprised of 1-4 sessions per week for a period ranging from four to 20 weeks with isokinetic dynamometers or conventional strength training machines were considered. Isokinetic eccentric training programs included 1-6 sets of 6-12 repetitions, while isotonic eccentric training programs consisted of 3-7 sets of 5-10 repetitions. Eccentric strength gains per training session (0.45-3.42%) were typically found to be greater compared to isometric (0.08-1.30%) and concentric (0.23-1.44%) strength gains. Quadriceps activation was improved in tests performed eccentrically and isometrically, but there is poor evidence of increased concentric activation and reduced co-activation of antagonistic muscles. Regarding muscle structure, significant hypertrophic responses have been demonstrated through increases in anatomical/physiological cross-sectional area, muscle thickness and fiber diameter. Most studies measuring muscle architectural changes reported increased fascicle lengths without changes in pennation angle. Adaptations in fiber type distribution were inconsistent. CONCLUSIONS: Strength gains following knee extensor eccentric training are caused by neural and structural adaptations, and may contribute to physical fitness in healthy populations and health improvement in patients.en_US
dc.description.grantingagencyOtheren_US
dc.identifier.citationReferences Manfredini Baroni, B., Silveira Pinto, R., Herzog, W., & Aurélio Vaz, M. (2015). Eccentric resistance training of the knee extensor muscle: Training programs and neuromuscular adaptations. Isokinetics and Exercise Science, 23(3), 183-198. doi:10.3233/IES-150580en_US
dc.identifier.doi10.3233/IES-150580en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/34263
dc.identifier.issn1878-5913
dc.identifier.urihttp://hdl.handle.net/1880/108812
dc.language.isoenen_US
dc.publisherIOS Pressen_US
dc.publisher.departmentHuman Performance Laben_US
dc.publisher.facultyKinesiologyen_US
dc.publisher.hasversionPublisher's versionen_US
dc.publisher.institutionUniversity of Calgaryen_US
dc.publisher.policyhttps://www.iospress.nl/service/authors/author-copyright-agreement/en_US
dc.rightsUnless otherwise indicated, this material is protected by copyright and has been made available with authorization from the copyright owner. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.subjecteccentricen_US
dc.subjectexerciseen_US
dc.subjecttrainingen_US
dc.subjectmuscleen_US
dc.titleEccentric resistance training of the knee extensor muscle: Training programs and neuromuscular adaptationsen_US
dc.typejournal articleen_US
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