Vliv způsobu provedení odrazu na výšku skoku závodníků v severské kombinaci
Deutscher übersetzter Titel: | Der Einfluss der Absprungart auf die Sprunghöhe der Athleten in der Nordischen Kombination |
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Englischer übersetzter Titel: | Effect of take-off modifications on the height of the jump in nordic combined competitors |
Autor: | Janura, Miroslav; Elfmark, Milan; Svoboda, Zdeněk |
Erschienen in: | Česká kinantropologie |
Veröffentlicht: | 16 (2012), 4, S. 55-64, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Tschechisch |
ISSN: | 1211-9261 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201304002448 |
Quelle: | BISp |
Abstract des Autors
The take-off in ski jumping is a variation of the vertical jump performed at the high
velocity. As the number of take-offs on a jumping hill during training is limited, variations of vertical jump simulating jumping hill take-offs are employed to build explosive strength. The study evaluates the effect of take-off modifications on the height of the jump and compares take-offs in the laboratory and jumping hill conditions. A group of young Nordic combined competitors (n = 22) performed three variants of the vertical jump (in-run position jump; counter movement and squat jump) in training shoes and in jumping boots in the laboratory conditions and a take-off on a jumping hill. The height of the jump achieved on a jumping hill was more than 50 % lower compared to one from take-off executed from in-run position in a laboratory with training footwear. The height of the vertical jump from in-run position in a laboratory with training shoes serves as a measure of the lower extremities’ explosive strength when assessing the athlete’s preparedness for competition season. Verf.-Referat