Comparison of physical abilities in elite soccer players according to field position.

Title: Comparison of physical abilities in elite soccer players according to field position. Objectives: The main aim of the diploma thesis was to compare the selected motional assumptions of adult elite football players according to the distribution of the players in the game position. Methods: The test group consisted of 54 footballers aged 17-37 years of age. Testing took place on each player one day before the 2017/2018 season. A test battery was selected for testing (determination of body composition, explosive force of the lower limbs, isokinetic force of the extensions group and knee flexor group and determination of maximum oxygen consumption). The following devices were used for testing: body height measurement - digital static (SECA 242, Hamburg, Germany), bioimpedance analyzer - Tanita MC-980MA (Tanita Corporation, Japan), Kistler B8611A - 400 Hz BioWare 4.0.0 and MatlabR2013, isokinetic dynamometer - Cybex Humac Norm (Cybex NORM® , Humac, CA, USA), Quasar (Cosmos) treadmill, Cortex Metalyzer 3B diagnostic tool. Results: The results of our work indicate that the goalkeepers are the heaviest, with the highest percentage of fat in the body, with the highest percentage of active body weight, the highest and oldest players in the team and also have the best jump value. Defenders have the..