Testing variations of methodological characteristics in the 5-0-5 test: impact of the linear sprint on change-of-direction deficit in adult male soccer players Clemente, Filipe Manuel Garrett, Joel M. González Fernández, Francisco Tomás Silva, Ana Filipa Nobari, Hadi Football Exercise test Physical fitness Purpose. The study compared the change-of-direction deficit (CODD) using the first 10-m sprint of a 40-m sprint test (CODDoriginal), the 10-m time that precedes the 5-0-5 test (CODD5-0-5start), and the best 10-m split of a 40-m sprint test (CODDbest). Methods. A cross-sectional study design was applied. Twenty elite male soccer players (age: 21.6 ± 2.0 years; experience: 8.7 ± 2.3 years; body mass: 73.2 ± 6.1 kg; stature: 174.8 ± 4.5 cm) voluntarily participated in this study. They were assessed in the following tests: (i) 40-m linear sprint test and (ii) 5-0-5 test with a pre-planned 180° change-of-direction (COD) (left and right sides). CODD for both sides was calculated as the difference between average 5-0-5 and CODDoriginal, COODbest, and CODD5-0-5start. Results. The time over 10 m during the 30–40-m split of a 40-m sprint test was significantly shorter than the first 10 m of the same sprint test (best times: p < 0.001, d = –7.077; average time: p < 0.001, d = –1.140) and the first 10-m acceleration phase of the 5-0-5 test (best times: p < 0.001, d = 9.000; average times: p < 0.001, d = –8.500). No significant differences were found between the first 10 m of the 40-m sprint test and the 5-0-5 test (best times: p > 0.999, d = 0.133; average times: p = 0.990, d = 0.047). Comparisons of CODD revealed significant differences between approaches (best times: F = 201.7, p < 0.001, ηp2 = 0.914; average times: F = 196.2, p < 0.001, ηp2 = 0.912). However, there were no significant correlations between any CODD outcomes and the 40-m sprint test (p > 0.05). Conclusions. CODD calculated with the first 10 m and the best 10 m of a sprint test was significantly different; similarities existed between the initial 10 m of a 40-m sprint test and the 5-0-5 test. Therefore, to save time and resources, practitioners could use the first 10-m acceleration phase of the 5-0-5 since no significant differences were found between the initial 10 m of a linear sprint test. 2024-06-11T08:20:29Z 2024-06-11T08:20:29Z 2023 journal article Clemente FM, Garrett JM, González-Fernández FT, Silva AF, Nobari H. Testing variations of methodological characteristics in the 5-0-5 test: impact of the linear sprint on change-of-direction deficit in adult male soccer players. Hum Mov. 2023;24(2):127–135; doi: https://doi.org/10.5114/hm.2023.126154 https://hdl.handle.net/10481/92488 10.5114/hm.2023.126154 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Termedia Publishing House