Active landing and take-off kinematics of the long jump
Year: 2012
Type: article
Abstract: The aim of this paper was to perform a kinematic analysis of the take-off, and especially to examine the relationships of active landing (AL) and run-up velocity (RUV) with the take-off variables and the length of jump (L), as well as to determine the influence of our model and individual influence of each independent variable on the dependent variable - (L). The authors' intention was to apply the obtained results in practice - with the possibility of helping a population of average women long jumpers to approach the model of an elite woman long jumper. An experimental method was applied in the research to the sample of 25 successful long jumps of different length and the velocity of the approach of the junior world champion Ivana Španović. The results were measured by the Qualisys ProReflex MCU 240 motion capture 3D infrared system. The Pearson correlation analysis was used to establish the correlation between the variables. The standard multiple regression was used to measure the percentage of the influence of the model and each variable at L. It was found that the variables of the take-off change with the increase of RUV. The highest correlation with RUV was determined for the variables: (L) r = 0.696 and p = 0.000 and (TA) r = 0.603 p = 0.001. The standard multiple regression was used to calculate that our model (RUV, AL, KATD, AATD, LATD, TA, TOD) explained the variance L with 69%. It was concluded that TOD, LATD and RUV statistically significantly explain the variance L. To realize the maximum length of the jump, the jumpers should achieve the highest possible RUV and minimize the loss of the resulting take-off velocity with AL, the LATD should be about 63°, the KATD and TA should be increased, while the TOD should be shortened with the increase of RUV. It was found that AL does not correlate with RUV, but there is a statistically significant correlation of AL with TOD, which has a large impact on L.
Source: SCIndeks
Authors: Milan Matić, Vladimir Mrdaković, Nenad Janković, Duško Ilić, Stefanović Đorđe, Saša Kostić
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2802349245