Change of direction deficit : a more isolated measure of change of direction performance than total 505 time
Deutscher übersetzter Titel: | Richtungswechsel-Defizit : eine isolierteres Maß für die Richtungswechselleistung als der „Total 505 Time“-Test |
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Autor: | Nimphius, Sophia; Callaghan, Samuel J.; Spiteri, Tania; Lockie, Robert George |
Erschienen in: | Journal of strength and conditioning research |
Veröffentlicht: | 30 (2016), 11, S. 3024-3032, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1064-8011, 1533-4287 |
DOI: | 10.1519/JSC.0000000000001421 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201611007652 |
Quelle: | BISp |
Abstract des Autors
Most change of direction (COD) tests use total time to evaluate COD performance. This makes it difficult to identify COD ability because the majority of time is a function of linear running. The COD deficit has been proposed as a practical measure to isolate COD ability independent of sprint speed. This study evaluated relationships between sprint time, 505 time, and COD deficit, and whether the COD deficit identified a different and more isolated measure of COD ability compared with 505 time. Seventeen cricketers performed the 505 for both left and right sides and 30-m sprint tests (with 10-m split time). The COD deficit for both sides was calculated as the difference between average 505 and 10-m time. Correlations were calculated between all variables (p ≤ 0.05). To compare 505 time and COD deficit, z-scores were calculated; the difference in these scores was evaluated for each subject. The COD deficit correlated to 505 (r = 0.74–0.81) but not sprint time (r = −0.11 to 0.10). In contrast, 505 time did correlate with sprint time (r = 0.52–0.70). Five of 17 subjects were classified differently for COD ability when comparing standardized scores for 505 time vs. COD deficit. Most subjects (88–94%) had a meaningful difference between 505 time and COD deficit. Using 505 time to determine COD ability may result in a large amount of replication to linear speed assessments. The COD deficit may be a practical tool to better isolate and identify an athlete's ability to change direction.