<abstract xmlns="http://www.w3.org/1999/xhtml"><bold><italic>Introduction.</italic></bold> Dance and rhythmic gymnastics are high leap demanding sports. Leaps are fundamental human movements that require complex motor coordination of both the upper and lower body extremities. The aim of this study was to compare the kinetics parameters of two types of landing after performing front split leaps.<bold><italic>Material and methods.</italic></bold> Fifteen high-level acrobatic gymnasts with a mean age of 22 ± 2.76 years and mean training experience of 12.27 ± 2.34 years participated in the study. Examinations of kinetics parameters of the movements analysed were carried out using the Vicon system and Kistler plates. Gymnasts completed front split leaps with balanced landing (arabesque position) and moving landing (continued movement).<bold><italic>Results.</italic></bold> Values of vertical ground reaction force and values of muscle torque in the hip joint were statistically significant higher (p &lt; 0.001) for balanced landing. The value of leg stiffness was also significantly (p &lt; 0.001) higher for balanced landing (5.69 ± 2.45 kN/m) compared to moving landing (1.89 ± 0.43 kN/m). For balanced landing, the sequence of maximal peaks of torques from the highest to the lowest values were found in the hip (5.81 ± 1.06 Nm/kg), ankle (3.56 ± 0.71 Nm/kg), and knee (2.01 ± 0.75 Nm/kg) joints. For the split leap with moving landing, the most loaded joints, in descending order, were the ankle (3.50 ± 0.42 Nm/kg), hip (3.39 ± 0.78 Nm/kg), and knee (2.21 ± 0.57 Nm/kg) joints.<bold><italic>Conclusions.</italic></bold> The findings of the study can help to improve the methodology of training the technique and protect gymnasts and dancers against unnecessary injuries.</abstract>

Introduction. Dance and rhythmic gymnastics are high leap demanding sports. Leaps are fundamental human movements that require complex motor coordination of both the upper and lower body extremities. The aim of this study was to compare the kinetics parameters of two types of landing after performing front split leaps.Material and methods. Fifteen high-level acrobatic gymnasts with a mean age of 22 ± 2.76 years and mean training experience of 12.27 ± 2.34 years participated in the study. Examinations of kinetics parameters of the movements analysed were carried out using the Vicon system and Kistler plates. Gymnasts completed front split leaps with balanced landing (arabesque position) and moving landing (continued movement).Results. Values of vertical ground reaction force and values of muscle torque in the hip joint were statistically significant higher (p < 0.001) for balanced landing. The value of leg stiffness was also significantly (p < 0.001) higher for balanced landing (5.69 ± 2.45 kN/m) compared to moving landing (1.89 ± 0.43 kN/m). For balanced landing, the sequence of maximal peaks of torques from the highest to the lowest values were found in the hip (5.81 ± 1.06 Nm/kg), ankle (3.56 ± 0.71 Nm/kg), and knee (2.01 ± 0.75 Nm/kg) joints. For the split leap with moving landing, the most loaded joints, in descending order, were the ankle (3.50 ± 0.42 Nm/kg), hip (3.39 ± 0.78 Nm/kg), and knee (2.21 ± 0.57 Nm/kg) joints.Conclusions. The findings of the study can help to improve the methodology of training the technique and protect gymnasts and dancers against unnecessary injuries.

Comparative Analysis of Kinetics Parameters During Different Landing After Split Front Leaps

Józef Piłsudski University of Physical Education in Warsaw

Polish Journal of Sport and Tourism

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Introduction. Dance and rhythmic gymnastics are high leap demanding sports. Leaps are fundamental human movements that require complex motor coordination of...

Comparative Analysis of Kinetics Parameters During Different Landing After Split Front Leaps

Published Online: Dec 21, 2019

Page range: 3 - 6

Received: Jan 07, 2019

Accepted: Mar 22, 2019

DOI: https://doi.org/10.2478/pjst-2019-0007

Keywords
biomechanics, front leaps, kinetics parameters, landing, leg stiffness

© 2019 Michalina Błażkiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Comparative Analysis of Kinetics Parameters During Different Landing After Split Front Leaps

Published Online: Dec 21, 2019

Page range: 3 - 6

Received: Jan 07, 2019

Accepted: Mar 22, 2019

DOI: https://doi.org/10.2478/pjst-2019-0007

Keywordsbiomechanics, front leaps, kinetics parameters, landing, leg stiffness

© 2019 Michalina Błażkiewicz et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
biomechanics, front leaps, kinetics parameters, landing, leg stiffness