Anaerobic conditioning of soccer players: the evaluation of different anaerobic training methods on soccer player's physical performance
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Background: High performance in soccer depends on various physical qualities and skills, including tactical and technical skills as the two most import factors that contribute to success. These skills could be more important than small differences in physical performance abilities. Nevertheless, to be able to utilize the tactical and technical skills during a top soccer match, a soccer player has to cope with the physical demands of the game. Besides the high aerobic demands in soccer, game analyses indicate that soccer players sprint between 1–11% of the total game with durations of 2 to 4 s for each sprint every 60–90 s, which equals about 60–90 sprints during a soccer match. Those sprints suggest a high-energy demand from the anaerobic energy system and the need to repeat high velocity sprints throughout the match. Therefore, the improvement of soccer players’ anaerobic conditioning could be regarded as essential.Paper I: Enoksen, E., Tønnessen, E., & Shalfawi, S. Validity and reliability of the Newtest Powertimer 300- series (R) testing system. Journal of Sports Sciences, 27, 77-84 (2009). © Routledge, Taylor & Francis Group. Reprinted with permission (Appendix A).Paper II: Shalfawi, S., Ingebrigtsen, J., Dillern, T., Tønnessen, E., Delp, T. K. & Enoksen, E. The effect of 40 m repeated sprint training on physical performance in young elite male soccer players. Serbian Journal of Sports Sciences, 6(3), 111-116 (2012). © Sports Academy Belgrade. Open access journal, authors retain copyright.Paper III: Shalfawi, S., Haugen, T., Jakobsen, T. A., Enoksen, E., & Tønnessen, E. The Effect of Combined Resisted Agility and Repeated Sprint Training Vs. Strength Training on Female Elite Soccer Players. The Journal of Strength & Conditioning Research, 27(11), 2966-2972 (2013). © Wolters Kluwer Health, Inc. Reprinted with permission (Appendix A).Paper IV: Shalfawi, S., Young, M., Tønnessen, E., Haugen, T., & Enoksen, E. The effect of repeated agility training vs. repeated sprint training on elite female soccer players’ physical performance. Kinesiologia Slovenica, 19(3), 29-42 (2013). © University of Ljubljana. Reprinted with permission (Appendix A).Paper V: Shalfawi, S., Enoksen, E., & Tønnessen, E. The relationship between measures of sprinting, aerobic fitness, and lower body strength and power in well-trained female soccer players. International Journal of Applied Sport Sciences, 26(1), 18-25 (2014). © Korea institute of sport science. Open access journal, authors retain copyright.
Avhandling (doktorgrad) - Norges idrettshøgskole, 2015