Análise cinemática da ponta do voleibol utilizando videografia 2D

olleyball is a high-intensity and rest-deprived sport that involves different body segments. Therefore, it is essential that the coach properly direct the athlete's physical preparation and maximize their performance. The objective of this study was to analyze the volleyball spiking technique of two athletes from the Itson National Team, in order to identify movement and technique through kinematic indicators. The sampling method was non-probabilistic for convenience; two right-handed university-level volleyball players were selected; video recordings were made for kinematic analysis using the Kinovea v9.5 program; and variables such as trajectory, leg positioning relative to the body, shoulder rotation, and upper and lower extremity angles were obtained. The results showed deficiencies in phase two, as there was no pronounced dorsal flexion and the knees were flexed 65°, resulting in a lack of force transfer and poor spiking performance. In phase four, the full movement was not performed at the moment of contact with the ball, influencing the speed at which the ball was released. It was considered important to take into account the deficiencies detected in the phases in training, to avoid suffering injuries.