Pre-season isokinetic knee extensor total work at high speeds correlate to vertical jump height in Costa Rican professional soccer players
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| Авторы: | , |
|---|---|
| Формат: | póster de congreso |
| Дата публикации: | 2008 |
| Описание: | Purpose: The aim was to determine the relationship between pre-season isokinetic strength and vertical jump performance in professional soccer players. Methods: Sixty-three players were tested for isokinetic strength of the knee extensor and flexor muscles at angular velocities of 60°/s and 240°/s (Biodex 2), and peak countermovement vertical jump (VJ) height. Pearson product-moment correlations were conducted to determine the relationship among variables. Results: Mean age, height, weight, and VO max were 24.3±4.1 y, 176.8±5.5 cm, 72.9±7.14 kg, and 57.6±6.9 ml·kg−1·min−1, respectively. A moderate correlation was found between total work for the knee extensor muscles at 240°/s and VJ (r=0.31, p=0.02). Conclusion: During pre-season, high-speed knee extensor total work was associated to jump performance. These results showed the important contribution of this muscle group on this particular multi-articular power-related task, especially at higher speeds. Total work may better predict jump performance than peak torque values. Other studies [Özçakar et al., (2007); Saliva & Hrysomalils, (2001)] have shown significant correlations between knee strength (peak torque values) and jump height during the competitive phase, whereas no correlations existed during preseason [Malliou et al., (2003)]. |
| Страна: | Kérwá |
| Институт: | Universidad de Costa Rica |
| Repositorio: | Kérwá |
| Язык: | Inglés |
| OAI Identifier: | oai:kerwa.ucr.ac.cr:10669/103501 |
| Online-ссылка: | https://hdl.handle.net/10669/103501 https://doi.org/10.1249/01.mss.0000322374.89136.da |
| Ключевое слово: | soccer muscle strength knee joint jumping jump height isokinetic strength Costa Rica |