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Improvements in multi-joint leg function following chronic eccentric exercise
Department of Exercise and Sport Science, The University of Utah, Salt Lake City, Utah, USA. (Swedish Winter Sports Research Centre)
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2012 (English)In: Scandinavian Journal of Medicine and Science in Sports, ISSN 0905-7188, E-ISSN 1600-0838, Vol. 22, no 5, 653-661 p.Article in journal (Refereed) Published
Abstract [en]

Previous authors have reported that chronic eccentric cycling facilitates greater changes in multi-joint leg function (hopping frequency, maximum jumping height) compared with concentric cycling. Our purpose was to evaluate changes in leg spring stiffness and maximum power following eccentric and concentric cycling training. Twelve individuals performed either eccentric (n=6) or concentric (n=6) cycling for 7 weeks (3 sessions/week) while training duration progressively increased. Participants performed trials of submaximal hopping, maximal counter movement jumps, and maximal concentric cycling to evaluate leg spring stiffness, maximum jumping power, and maximum concentric cycling power respectively, before and 1 week following training. Total work during training did not differ between eccentric and concentric cycling (126 ± 15–728 ± 91 kJ vs 125 ± 10–787 ± 76 kJ). Following training, eccentric cycling exhibited greater changes in kleg and jumping Pmax compared with CONcyc (10 ± 3% vs −2 ± 4% and 7 ± 2% vs −2 ± 3%, respectively, P=0.05). Alterations in CONcycPmax did not differ between ECCcyc (1035 ± 142 vs 1030 ± 133 W) and CONcyc (1072 ± 98 vs 1081 ± 85 W). These data demonstrate that eccentric cycling is an effective method for improving leg spring stiffness and maximum power during multi-joint tasks that include stretch-shortening cycles. Improvements in leg spring stiffness and maximum power would be beneficial for both aging and athletic populations.

Place, publisher, year, edition, pages
2012. Vol. 22, no 5, 653-661 p.
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:miun:diva-16154DOI: 10.1111/j.1600-0838.2011.01291.xOAI: oai:DiVA.org:miun-16154DiVA: diva2:524351
Available from: 2012-09-03 Created: 2012-05-02 Last updated: 2014-08-28Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
  • html
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