Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry
Analyzing asymmetry from biomechanical parameters of the lower extremities has become a standard practice for accurate assessment of athletic performance, injury prevention, and rehabilitation. The aims of this study were (1) to determine differences between explosive strength and asymmetry of the l...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-05-01
|
| Series: | Symmetry |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-8994/14/6/1130 |
| _version_ | 1797481965641793536 |
|---|---|
| author | Nikola Prvulović Milan Čoh Dražen Čular Mario Tomljanović Goran Sporiš Suzana Žilič Fišer |
| author_facet | Nikola Prvulović Milan Čoh Dražen Čular Mario Tomljanović Goran Sporiš Suzana Žilič Fišer |
| author_sort | Nikola Prvulović |
| collection | DOAJ |
| description | Analyzing asymmetry from biomechanical parameters of the lower extremities has become a standard practice for accurate assessment of athletic performance, injury prevention, and rehabilitation. The aims of this study were (1) to determine differences between explosive strength and asymmetry of the lower extremities using kinetic parameters of the CMJ jump test in young female athletics, and (2) to investigate correlation between speed and asymmetry, as speed and kinetic parameters. The two groups of nine female sprinters (mean ± SD; G1-age 15.6 ± 1.34 years, height 170.1 ± 0.57 cm, body mass 62.54 ± 7.73 kg, and BMI 21.6 ± 2.05; G2-age 16.2 ± 1.3 years, height 168.4 ± 0.61 cm, body mass 57.69 ± 3.12 kg, and BMI 20.37 ± 1.38) performed the CMJ test without using an arm swing, as well as a 100 m test. Two tensiometric platforms were used for the kinetic parameters and asymmetry. Asymmetry was calculated by an AI equation, and the values of the takeoff velocities and jump height parameters were obtained by integral formula and the trapezoidal rule of impulse-momentum methods. The results show differences in four kinetic parameters: height (G1- 26.82 ± 3.56 cm, vs. G2- 17.45 ± 2.01 cm), concentric impulse, (G1- 96.05 ± 16.95 N⋅s, vs. G2- 68.41 ± 4.77 N⋅s), takeoff velocity, (G1- 2.29 ± 0.14 m/s, vs. 1.83 ± 0.12 m/s), and concentric velocity, m/s (G1- 1.5 ± 0.175 m/s, vs. 1.17 ± 0.122 m/s), as well as a negative strong and very strong correlation between asymmetry and kinetic parameters for three parameters: Peak Force (G1- r = −0.878, and all subjects r = −0.633), Eccentric Impulse of left leg (G1- r = −0.865) and Concentric Impulse of right leg (G2- r = −0.878), (<i>p</i> <.05). The younger sprinters did not show the principle of muscle activation in the form of a longer preparatory phase of contact time, eccentric and concentric phase, as well as a force impulse that is optimal. There was no correlation between asymmetry and sprint performance. |
| first_indexed | 2024-03-09T22:22:51Z |
| format | Article |
| id | doaj.art-1f62a2fb646e4968af66874223d818d9 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-09T22:22:51Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-1f62a2fb646e4968af66874223d818d92023-11-23T19:11:18ZengMDPI AGSymmetry2073-89942022-05-01146113010.3390/sym14061130Countermovement Jump in Female Sprinters: Kinetic Parameters and AsymmetryNikola Prvulović0Milan Čoh1Dražen Čular2Mario Tomljanović3Goran Sporiš4Suzana Žilič Fišer5Faculty of Sport and Physical Education, University of Niš, 18000 Niš, SerbiaFaculty of Sport, University of Ljubljana, Gortanova Ulica 22, 1000 Ljubljana, SloveniaFaculty of Kinesiology, University of Split, Ruđera Boškovića 31, 21000 Split, CroatiaFaculty of Kinesiology, University of Split, Ruđera Boškovića 31, 21000 Split, CroatiaFaculty of Kinesiology, University of Zagreb, Horvaćanski Zavoj 15, 10110 Zagreb, CroatiaInstitute of Media Communications, Faculty of Electrical Engineering and Computer Science, University of Maribor, Koroška Cesta 46, 2000 Maribor, SloveniaAnalyzing asymmetry from biomechanical parameters of the lower extremities has become a standard practice for accurate assessment of athletic performance, injury prevention, and rehabilitation. The aims of this study were (1) to determine differences between explosive strength and asymmetry of the lower extremities using kinetic parameters of the CMJ jump test in young female athletics, and (2) to investigate correlation between speed and asymmetry, as speed and kinetic parameters. The two groups of nine female sprinters (mean ± SD; G1-age 15.6 ± 1.34 years, height 170.1 ± 0.57 cm, body mass 62.54 ± 7.73 kg, and BMI 21.6 ± 2.05; G2-age 16.2 ± 1.3 years, height 168.4 ± 0.61 cm, body mass 57.69 ± 3.12 kg, and BMI 20.37 ± 1.38) performed the CMJ test without using an arm swing, as well as a 100 m test. Two tensiometric platforms were used for the kinetic parameters and asymmetry. Asymmetry was calculated by an AI equation, and the values of the takeoff velocities and jump height parameters were obtained by integral formula and the trapezoidal rule of impulse-momentum methods. The results show differences in four kinetic parameters: height (G1- 26.82 ± 3.56 cm, vs. G2- 17.45 ± 2.01 cm), concentric impulse, (G1- 96.05 ± 16.95 N⋅s, vs. G2- 68.41 ± 4.77 N⋅s), takeoff velocity, (G1- 2.29 ± 0.14 m/s, vs. 1.83 ± 0.12 m/s), and concentric velocity, m/s (G1- 1.5 ± 0.175 m/s, vs. 1.17 ± 0.122 m/s), as well as a negative strong and very strong correlation between asymmetry and kinetic parameters for three parameters: Peak Force (G1- r = −0.878, and all subjects r = −0.633), Eccentric Impulse of left leg (G1- r = −0.865) and Concentric Impulse of right leg (G2- r = −0.878), (<i>p</i> <.05). The younger sprinters did not show the principle of muscle activation in the form of a longer preparatory phase of contact time, eccentric and concentric phase, as well as a force impulse that is optimal. There was no correlation between asymmetry and sprint performance.https://www.mdpi.com/2073-8994/14/6/1130asymmetrykineticsexplosive strengthsprintathletics |
| spellingShingle | Nikola Prvulović Milan Čoh Dražen Čular Mario Tomljanović Goran Sporiš Suzana Žilič Fišer Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry Symmetry asymmetry kinetics explosive strength sprint athletics |
| title | Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry |
| title_full | Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry |
| title_fullStr | Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry |
| title_full_unstemmed | Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry |
| title_short | Countermovement Jump in Female Sprinters: Kinetic Parameters and Asymmetry |
| title_sort | countermovement jump in female sprinters kinetic parameters and asymmetry |
| topic | asymmetry kinetics explosive strength sprint athletics |
| url | https://www.mdpi.com/2073-8994/14/6/1130 |
| work_keys_str_mv | AT nikolaprvulovic countermovementjumpinfemalesprinterskineticparametersandasymmetry AT milancoh countermovementjumpinfemalesprinterskineticparametersandasymmetry AT drazencular countermovementjumpinfemalesprinterskineticparametersandasymmetry AT mariotomljanovic countermovementjumpinfemalesprinterskineticparametersandasymmetry AT goransporis countermovementjumpinfemalesprinterskineticparametersandasymmetry AT suzanazilicfiser countermovementjumpinfemalesprinterskineticparametersandasymmetry |