INTRODUCTION Soccer is the most popular sport worldwide. The Federation Internationale de Football Association represents 203 countries including more than 200 million licensed participants. (9) The Union des Associations Europeennes de Football represents 49 European nations with approximately 20 million participants, and the German Soccer Association listed 6.25 million participants in 2000. (6,28) These statistics do not include players who play soccer on an unorganized basis. No other discrete movement in football is as spectacular as the gesture known as the bicycle kick: …
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…Amos, R. Bolt. Journal of Sports Sciences. June 2004 v22 i6 p496 (2). Coefficient of restitution in toe and instep soccer kicks. (Part I: biomechanics) T. Bull Andersen, L.B. Kristensen, H. Sorensen. Journal of Sports Sciences. June 2004 v22 i6 p486(2). www.u-bourgogne.fr/EXPERTISE-PERFORMANCE/soccer.pdf www.findarticles.com/p/articles/ mi_m0918/is_2_29/ai_74482806.html www.fitnesslynn.com/trnspec.htm www.ballyfitness.com/clubs/group_exercise/tradition www.podiatry.curtin.edu.au/worldcup/soccer.html