![]() While outfield players in general showed similar endurance performance, CM seem to possess the highest aerobic capacity of all positions as indicated by all lactate-based thresholds, however, with only small to moderate ES. Findings suggest that goalkeepers possess the lowest endurance capacity compared to other playing positions. ![]() However, trends were found in favor of the CM compared to the WI ( p = 0.11 ES = 0.68) and the FW ( p = 0.06 ES = 0.47) relating to v LT as well as in favor of the CM compared to the WI ( p = 0.10 ES = 0.56) relating to v IAT. ![]() No significant differences among outfield playing positions were evident for any of the parameters. Results revealed significant differences between GK and all outfield playing positions for all endurance parameters ( p ≤ 0.03 ES 0.87–2.19). All players performed an incremental treadmill test with blood lactate sampling until exhaustion with the following endurance parameters being obtained: Fixed aerobic threshold (v 2mmol/l), fixed anaerobic threshold (v 4mmol/l), individual aerobic threshold (v LT), individual anaerobic threshold (v IAT), and maximum velocity (v max). 136 professional players competing in the 1st and 2nd division in Germany were divided into the positional groups goalkeepers (GK), central defenders (CD), wingers (WI), central midfielders (CM), and forwards (FW). The aim of this study was to investigate position-specific endurance performance of soccer players. 5TSG 1899 Hoffenheim, Zuzenhausen, Germany.4Department for Social and Health Sciences in Sport, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany.3Institute of Movement and Sport, University of Education Karlsruhe, Karlsruhe, Germany.2TSG ResearchLab gGmbH, Zuzenhausen, Germany.1Department for Performance Analysis, Institute of Sports and Sports Science, Karlsruhe Institute of Technology, Karlsruhe, Germany.Stefan Altmann 1,2 * Rainer Neumann 1,3 Alexander Woll 4 Sascha Härtel 5
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