Sungchan Hong, Yahiro Kazama, Masao Nakayama, Takeshi Asai,
Abstract The flight trajectory of a non-spinning or low-spinning soccer ball may fluctuate in unpredictable ways, with anomalous horizontal shaking or rapid falling. This “knuckling shot” is famously exploited by Cristiano Ronaldo in his free kicks. However, the technical aspects of kicking a knuckling shot are still unclear, and considerable analysis is required. In this study, we used high-speed video cameras to compare the knuckling shot with curve and straight shots. The results indicate that ...
Tópico(s): Experimental and Theoretical Physics Studies
2012 - Elsevier BV | Procedia Engineering