Analysis of kinematics of the approach run in long jump event among Jordanian male team

Abstract

The purpose of this investigation was to study kinematic variables at the approach run and take-off phase. Furthermore, to study the relationships between these kinematic variables among Jordanian male team in long jump event. To achieve this, four elite male jumpers from the Jordanian male team (age 18±0.6 years; height 180±2 cm; mass 72±2 kg; the leg length 87±1 cm; training age 4±0.58 years) were studied. Subjects were filmed by digital video cameras (Nikon D3400, 60 fps). The first camera was placed 20 m lateral from the center of the approach run to capture the steps, vertical height of the camera was 1.2 m. The second camera was positioned to capture the last two strides and take-off phase, this camera was placed 8 m lateral from the last two stride to capture other study variables, vertical height of the camera was 1 m. The video data were performed with Kinovea analysis program (version 0.8.2764 × 64), where the best attempt was analyzed. This study involved 15 kinematic variables. According to the results obtained in this study, we can conclude that the subjects of this study show asymmetrical results in most study variables except touch-down time variable. Furthermore, one interesting finding is that a height of center of mass at take-off variable is the only one that has a statistically significant relationship with the achievement distance (r = 0.949). Finally, it is recommended the establishment of a kinetic file for each long jumpers.