Countermovement vertical jump with drop step is higher than without in collegiate football players
Deutscher übersetzter Titel: | Der Countermovement-Vertikalsprung mit Dropschritt ist bei College-Footballspielern höher als ohne Dropschritt |
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Autor: | Brodt, Vincent; Wagner, Dale R.; Heath, Edward M. |
Erschienen in: | Journal of strength and conditioning research |
Veröffentlicht: | 22 (2008), 4, S. 1382-1385, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 1064-8011, 1533-4287 |
DOI: | 10.1519/JSC.0b013e3181739496 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU200912006911 |
Quelle: | BISp |
Abstract des Autors
The vertical jump is a performance test commonly used to assess explosive power and predict athletic ability. Typically, the vertical jump is performed with a countermovement from a stationary stance. We hypothesized that taking a quick step back before initiating the jump, known as the drop-step technique, would result in a higher vertical jump. The purpose of this study was to compare countermovement vertical jumps (CMJs) done from the stationary-stance position to CMJs performed with the drop-step with trained athletes. NCAA Division I football players (N = 56) performed 3 trials each of stationary-stance and drop-step CMJs in a random order. A paired t test revealed that a significantly (p < 0.01) higher jump height was achieved with the drop-step CMJ (69.3 ± 8.0 cm) compared to the stationary-stance CMJ (66.5 ± 8.0 cm). The 2 jump conditions were highly related (r = 0.95), and the rank order of the athletes tended to be similar from 1 condition to the other ([rho] = 0.94). Trial-to-trial reliability was similar for each condition (coefficient of variation [CV] = 3.5% stationary stance; CV = 4.1% drop step). It is important to standardize CMJ testing procedures because a significant difference in the height achieved exists between the stationary-stance and drop-step techniques. Verf.-Referat