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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Test-retest reliability, criterion-related validity, and minimal detectable change of the Illinois agility test in male team sport athletes
Journal of Strength and Conditioning Research, Volume 27, No. 10, Year 2013
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Description
The purposes of this study were first to assess the reliability and criterion-related validity of the Illinois change of direction (COD) Illinois Agility Test (IAGT) and second to determine whether a relationship with power and speed exists. A total of 105 male team sport athletes participated in this investigation. Repeat measurements in 89 subjects out of the 105 were performed to assess the test-retest reliability and the 95% confidence interval (CI) of the difference in the score between paired observations (minimal detectable change [MDC]95) of the COD IAGT. The intraclass correlation coefficient and the SEM values for the COD IAGT test were 0.96 (95% CI, 0.85-0.98) and 0.19 seconds, respectively. The smallest worthwhile change (0.20 seconds) for the IAGT was greater than its SEM (0.19 seconds). The MDC95 value for the IAGT was 0.52 seconds. Criterion-related validity of the COD IAGT was assessed in the 105 subjects. They performed the COD IAGT and the T-test. Both tests were significantly correlated (r = 0.31 [95% CI, 0.24-0.39]; p , 0.05). The correlation between COD IAGT, acceleration, straight speed, and leg power was analyzed in all the 105 subjects. Pearson moment correlation revealed no association between acceleration and the COD IAGT. However, significant correlations were observed between the COD IAGT and leg power (r = 20.39 [95% CI, 20.26 to 20.44]; p , 0.05), and speed (r = 0.42 [95% CI, 0.37-0.51]; p , 0.05). When controlling for speed with partial correlation, the significant relationship between the COD IAGT and leg power disappeared. In conclusion, the COD IAGT seems to be a reliable and valid test, whose performance is significantly related to speed rather than to acceleration and leg power. © 2013 National Strength and Conditioning Association.
Authors & Co-Authors
Hachana, Younès S.
Tunisia, Tunis
Institut Supérieur du Sport et de L'education Physique de Ksar-saïd
Chaabene, Helmi
Tunisia
National Center of Medicine and Science in Sport
Nabli, Mohamed Ali
Tunisia, Tunis
Institut Supérieur du Sport et de L'education Physique de Ksar-saïd
Attia, Ahmed
Tunisia, Tunis
Institut Supérieur du Sport et de L'education Physique de Ksar-saïd
Moualhi, Jamel
Tunisia, Tunis
Institut Supérieur du Sport et de L'education Physique de Ksar-saïd
Farhat, Najiba
Tunisia, Sousse
Faculty of Medicine Sousse
Elloumi, Mohamed
Tunisia, Sousse
Faculty of Medicine Sousse
Statistics
Citations: 135
Authors: 7
Affiliations: 3
Identifiers
Doi:
10.1519/JSC.0b013e3182890ac3
ISSN:
10648011
e-ISSN:
15334295
Participants Gender
Male