New curve sprint test for soccer players: Reliability and relationship with linear sprint |
| |
| Authors: | Alberto Fílter Jesús Olivares Alfredo Santalla Fabio Y Nakamura Irineu Loturco Bernardo Requena |
| |
| Institution: | 1. Faculty of Sport, University of Pablo de Olavide (UPO) , Seville, Spain;2. Research and Development Department, Football Science Institute (FSI) , Granada, Spain albertofr_91@hotmail.com https://orcid.org/0000-0002-0040-0624;4. Research and Development Department, Football Science Institute (FSI) , Granada, Spain;5. Mixed University Institute of Sport and Health (IMUDS) , Granada, Spain https://orcid.org/0000-0003-4748-4578;6. Research and Development Department, Football Science Institute (FSI) , Granada, Spain https://orcid.org/0000-0001-9418-0564;7. Research and Development Department, Football Science Institute (FSI) , Granada, Spain https://orcid.org/0000-0002-5336-3652;8. NAR – Nucleus of High Performance in Sport , Sao Paulo, Brazil;9. University of South Wales , Pontypridd, Wales, UK;10. Department of Human Movement Science, Federal University of Sao Paulo , Brazil https://orcid.org/0000-0003-1309-2568;11. Research and Development Department, Football Science Institute (FSI) , Granada, Spain https://orcid.org/0000-0002-2398-5370 |
| |
| Abstract: | ABSTRACT The speed performance is involved not only in linear sprints, but also in a wide spectrum of multi-directional movements, such as curve sprinting. Curved sprint can be defined as sprint with gradual and continuous change of direction (COD). Although ~85% of the actions performed at maximum velocity in a professional soccer league are curvilinear sprints, there is not any specific test to assess this ability. This study aimed to analyse the reliability of a new curve sprint test, and compare its results with those obtained by soccer players in linear sprint. Forty experienced soccer players performed 3 attempts of curve sprint (using the penalty arc) to right and left side (17 m), and 3 linear sprints (17 m) in two different days. The ICCs (inter-session reliability) were 0.93 for sprint curve right side (CSRS) and 0.89 for sprint curve left side (CSLS), considered “acceptable”. The CVs (intra-session reliability) were 0.87% in CSRS and 1.15% in CSLS. The coefficient of determination (R2) between linear and curve sprinting was ~35%. The association between curve sides was “very large” (r = 0.878; p < 0.01). In summary, we showed that “curve sprint test” is highly reliable, and that curvilinear and linear sprints are different and independent actions. |
| |
| Keywords: | Non-linear sprint performance assessment semi-professional soccer player |
|
|
![ORCID Icon]({"type":"image","src":"/templates/jsp/images/orcid.png"} "ORCID Icon")
https://orcid.org/0000-0002-0040-0624;4. Research and Development Department, Football Science Institute (FSI) , Granada, Spain;5. Mixed University Institute of Sport and Health (IMUDS) , Granada, Spain