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The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players

Received: 6 February 2014     Published: 28 February 2014
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Abstract

The purpose of the present study was to investigate the effects of eccentric training using a multi-joint dynamometer, on the electromyographic activity of rectus femoris, biceps femoris and medial gastrocnemius during counter movement jumps, drop jumps as well as during maximal eccentric actions. Sixteen amateur soccer players was divided into equal sized groups, the control group who participated in their regular training and the training group who performed 16 sessions (in 8 weeks) of eccentric exercise using a multi joint isokinetic dynamometer. The performance of counter movement and drop jumps were evaluated on a force plate. Additionally, maximal isometric, concentric and eccentric force were assessed on the isokinetic dynamometer. After the eccentric training, the electromyographic activity during the concentric phase of counter movement jumps was found to be increased in rectus femoris (p<0.05) and reduced in biceps femoris (p<0.05). During drop jumps, electromyographic activity of the experimental group found to be increased in the pre-activation phase of gastrocnemius (p<0.05). Additionally, during the takeoff phase of the drop jumps smaller angles for hip and ankle joints were observed (p<0.05). Finally, the electromyographic activity during eccentric strength evaluation were found to be elevated in rectus femoris (p<0.05) and decreased in gastrocnemius (p<0.05). The eccentric training which can cause neural adaptations, faster recruitment of motor units as well as changes in the architecture in muscle tendon system may also cause the alterations in electromyographic activity of leg muscles as observed in the present investigation.

Published in American Journal of Sports Science (Volume 2, Issue 2)
DOI 10.11648/j.ajss.20140202.13
Page(s) 23-29
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2014. Published by Science Publishing Group

Keywords

Contact Time, Isokinetic Dynamometry, Myoelectrical Properties, Soccer players, Stretch-Shortening Cycle, Vertical Jump

References
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Cite This Article
  • APA Style

    Stergios Komsis, Georgios Komsis, Ioannis Gissis, Christos Papadopoulos, Dimitrios Patikas, et al. (2014). The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players. American Journal of Sports Science, 2(2), 23-29. https://doi.org/10.11648/j.ajss.20140202.13

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    ACS Style

    Stergios Komsis; Georgios Komsis; Ioannis Gissis; Christos Papadopoulos; Dimitrios Patikas, et al. The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players. Am. J. Sports Sci. 2014, 2(2), 23-29. doi: 10.11648/j.ajss.20140202.13

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    AMA Style

    Stergios Komsis, Georgios Komsis, Ioannis Gissis, Christos Papadopoulos, Dimitrios Patikas, et al. The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players. Am J Sports Sci. 2014;2(2):23-29. doi: 10.11648/j.ajss.20140202.13

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  • @article{10.11648/j.ajss.20140202.13,
      author = {Stergios Komsis and Georgios Komsis and Ioannis Gissis and Christos Papadopoulos and Dimitrios Patikas and Lida Mademli and Panagiotis Papadopoulos and Vassilis Paschalis and Ioannis S. Vrabas},
      title = {The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players},
      journal = {American Journal of Sports Science},
      volume = {2},
      number = {2},
      pages = {23-29},
      doi = {10.11648/j.ajss.20140202.13},
      url = {https://doi.org/10.11648/j.ajss.20140202.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajss.20140202.13},
      abstract = {The purpose of the present study was to investigate the effects of eccentric training using a multi-joint dynamometer, on the electromyographic activity of rectus femoris, biceps femoris and medial gastrocnemius during counter movement jumps, drop jumps as well as during maximal eccentric actions. Sixteen amateur soccer players was divided into equal sized groups, the control group who participated in their regular training and the training group who performed 16 sessions (in 8 weeks) of eccentric exercise using a multi joint isokinetic dynamometer. The performance of counter movement and drop jumps were evaluated on a force plate. Additionally, maximal isometric, concentric and eccentric force were assessed on the isokinetic dynamometer. After the eccentric training, the electromyographic activity during the concentric phase of counter movement jumps was found to be increased in rectus femoris (p<0.05) and reduced in biceps femoris (p<0.05). During drop jumps, electromyographic activity of the experimental group found to be increased in the pre-activation phase of gastrocnemius (p<0.05). Additionally, during the takeoff phase of the drop jumps smaller angles for hip and ankle joints were observed (p<0.05). Finally, the electromyographic activity during eccentric strength evaluation were found to be elevated in rectus femoris (p<0.05) and decreased in gastrocnemius (p<0.05). The eccentric training which can cause neural adaptations, faster recruitment of motor units as well as changes in the architecture in muscle tendon system may also cause the alterations in electromyographic activity of leg muscles as observed in the present investigation.},
     year = {2014}
    }
    

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  • TY  - JOUR
    T1  - The Effects of Eccentric Training on Electromyographic Activity and Performance in Soccer Players
    AU  - Stergios Komsis
    AU  - Georgios Komsis
    AU  - Ioannis Gissis
    AU  - Christos Papadopoulos
    AU  - Dimitrios Patikas
    AU  - Lida Mademli
    AU  - Panagiotis Papadopoulos
    AU  - Vassilis Paschalis
    AU  - Ioannis S. Vrabas
    Y1  - 2014/02/28
    PY  - 2014
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    DO  - 10.11648/j.ajss.20140202.13
    T2  - American Journal of Sports Science
    JF  - American Journal of Sports Science
    JO  - American Journal of Sports Science
    SP  - 23
    EP  - 29
    PB  - Science Publishing Group
    SN  - 2330-8540
    UR  - https://doi.org/10.11648/j.ajss.20140202.13
    AB  - The purpose of the present study was to investigate the effects of eccentric training using a multi-joint dynamometer, on the electromyographic activity of rectus femoris, biceps femoris and medial gastrocnemius during counter movement jumps, drop jumps as well as during maximal eccentric actions. Sixteen amateur soccer players was divided into equal sized groups, the control group who participated in their regular training and the training group who performed 16 sessions (in 8 weeks) of eccentric exercise using a multi joint isokinetic dynamometer. The performance of counter movement and drop jumps were evaluated on a force plate. Additionally, maximal isometric, concentric and eccentric force were assessed on the isokinetic dynamometer. After the eccentric training, the electromyographic activity during the concentric phase of counter movement jumps was found to be increased in rectus femoris (p<0.05) and reduced in biceps femoris (p<0.05). During drop jumps, electromyographic activity of the experimental group found to be increased in the pre-activation phase of gastrocnemius (p<0.05). Additionally, during the takeoff phase of the drop jumps smaller angles for hip and ankle joints were observed (p<0.05). Finally, the electromyographic activity during eccentric strength evaluation were found to be elevated in rectus femoris (p<0.05) and decreased in gastrocnemius (p<0.05). The eccentric training which can cause neural adaptations, faster recruitment of motor units as well as changes in the architecture in muscle tendon system may also cause the alterations in electromyographic activity of leg muscles as observed in the present investigation.
    VL  - 2
    IS  - 2
    ER  - 

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Author Information
  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science, Aristotle University of Thessaloniki, Greece

  • Department of Physical Education and Sports Science, University of Thessaly, Trikala, Greece

  • Department of Physical Education and Sports Science at Serres, Aristotle University of Thessaloniki, Greece

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