Run-Up Distance and Some Kinematic Variables As An Indicator to Long Jump Performance for Novice Long Jumpers

Hashem A. Kilani, Jehad A. Al-Rofu

Abstract


The purpose of this study was to investigate the best run-up length contributing to long jump distance, and to investigate the relationship between the run-up and the kinematic variables. For this purpose, a regression formula was established to predict jumping performance that can be used for athletes selections. (80) long jumping students served as subjects in this study, in which the best 11 athletes, whose ages range between “13-15”, had been assigned 3 trials in six run-up lengths and these were randomly ordered to each subject (10, 15, 20, 25, 30, 35 and 40m). The kinematic variables were calculated at the center of gravity of the body and they were: Take-Off Angle (TOA), Take-Off Velocity (TOV), Horizontal Take-Off Velocity (HTV), Vertical Take-Off Velocity (VTV), Take-Off Height (TOH) and Run-Up Velocity (RUV). Results showed that (20) meters run-up length was the best for the subjects of the study and that the relationship between the Horizontal Take Off Velocity and the jump distance was strong and proportional. A provisional prediction formula was established and it was suggested to adopt shorter run-up lengths for the primary students in Jordan to achieve a better kinematic relation.


Keywords


Run-up Distance, Kinematic Variables, Long Jump, Novice Long Jumpers

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