This study compared changes in the energy time-profiles and related parameters in pole vaulting using three body models. Two-dimensional kinematics were collected from 20 trials (5.20-6.01 m) performed by 10 athletes during a competition. The linear and angular kinetic, potential, and mechanical energy time-profiles were obtained from three pole vaulter models composed of 12, 5, and 3 segments (M12, M5, and M3, respectively). The energy values of M5, compared to those of M3, were more similar to M12 and appeared to be a good compromise between the decreased number of digitized points and the reliability of the energetic outcomes in pole vaulting.
Two-dimensional three-body quadrupole-quadrupole interactions
