Analysis of effectiveness of free segment actions and antero-posterior and lateral body displacements during the take-off phase of high jump (flop style)
(Analyse der Effektivität freier Segmentaktionen und anterio-posteriorer und lateraler Körperbewegungen in der Absprungphase im Hochsprung (Flop))
The aim of this study is to analyse frontal and lateral displacements, as well as free segment actions in a sample of 10 athletes (7 in national categories and 3 at an international level) in order to compare them with optimal reference levels and determine their current technical level. To achieve this, all jumps were recorded during an official competition by 6 synchronised cameras, previously validated with a 24 control point reference system. Calculations were based on the sum of all 14 angular momenta in relation to the body`s centre of mass.
From the results, it can be concluded that, in the highest jumpers, jump height was correlated to vertical displacement in the sagittal plane (r = -0.60), free leg arm velocity (r = -0.56) and frontal plane angle momentum (r = -0.59). The main technical errors in the assessed athletes were identified as body inclination in the analysed planes at the beginning of take-off (frontal and sagittal) and excessively low free leg activity. These mistakes could be improved with training in curved run-up and transition to take-off.
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| Schlagworte: | |
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| Notationen: | Kraft-Schnellkraft-Sportarten |
| Veröffentlicht in: | International Journal of Performance Analysis in Sport |
| Sprache: | Englisch |
| Veröffentlicht: |
2019
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| Online-Zugang: | https://doi.org/10.1080/24748668.2018.1555737 |
| Jahrgang: | 19 |
| Heft: | 1 |
| Seiten: | 14-27 |
| Dokumentenarten: | Artikel |
| Level: | hoch |