TY  - JOUR
A1  - Kadlubowski, Björn
A1  - Keiner, Michael
A1  - Hartmann, Hagen
A1  - Wirth, Klaus
A1  - Frick, Ulrich
T1  - The relationship between change of direction tests in elite youth soccer players
T2  - Sports
N2  - Change of direction (COD) is a performance-limiting factor in team sports. However, there are no exact definitions describing which physical abilities limit COD performance in soccer. Nevertheless, different COD tests are used or have been recommended as being equally effective in the professional practice of measuring COD performance. Therefore, the aim of this study was to evaluate the relationship between different COD tests, and to test the independence and generalizability of these COD tests in soccer. As such, 27 elite youth soccer players were randomly recruited and were tested in different COD tests (i.e., Illinois agility test (IAT), T agility test (TT), 505 agility test (505), Gewandtheitslauf (GewT), triangle test (Tri-t), and square test (SQT)). Bivariate Pearson correlation analysis was used to assess the relationships between the COD tests. The Benjamini–Hochberg method was used to control for the false discovery rate of the study at 0.05. This investigation calculated explained variances of 10% to 55% between performances in the different COD tests. This suggested that the tests covered different aspects or task-specific characteristics of the COD. Therefore, coaches and sport scientists should review and select different tests with a logical validity, based on the requirement profiles of the corresponding sport.
KW  - 505
KW  - COD performance
KW  - COD tests
KW  - Gewandtheitslauf
KW  - Illinois agility test
KW  - soccer players
KW  - square test
KW  - T test
KW  - triangle test
Y1  - 2019
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/50327
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-503272
SN  - 2075-4663
N1  - This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
VL  - 7
IS  - 5, Art. 111
SP  - 1
EP  - 8
PB  - MDPI
CY  - Basel
ER  -