48. Meyer T, Ohlendorf K, Kindermann W: Konditionelle Fähigkeiten deutscher Spitzenfußballer im Längsschnitt. Dtsch Z Sportmed 2000; 51: 271–7

49. Ogris G, Leser R, Horsak B, Kornfeind P, Heller M, Baca A: Accuracy of the LPM tracking system considering dynamic position changes. J Sports Sci 2012; 30: 1503–11

50. Osgnach C, di Prampero PE: Metabolic power in team sports – part 2: aerobic and anaerobic energy yields. Int J Sports Med 2018; 39: 588–95

51. Rampinini E, Bishop D, Marcora SM, Ferrari Bravo D, Sassi R, Impellizzeri FM: Validity of simple field tests as indicators of match-related physical performance in top-level professional soccer players. Int J Sports Med 2007; 28: 228–35

52. Reid LC, Cowman JR, Green BS, Coughlan GF: Return to play in elite rugby union: application of global positioning system technology in return-to-running programs. J Sport Rehabil 2013; 22: 122–9

53. Rein R, Memmert D: Big data and tactical analysis in elite soccer: future challenges and opportunities for sports science. Springerplus 2016; 5: 1410

54. Rossi A, Pappalardo L, Cintia P, Iaia FM, Fernandez J, Medina D: Effective injury forecasting in soccer with GPS training data and machine learning. PLoS One 2018; 13: e0201264

55. Seidl T, Czyz T, Spandler D, Franke N, Lochmann M: Validation of football‘s velocity provided by a radio-based tracking system. Procedia Engineering 2016; 147: 584–9

56. Sonderegger K, Tschopp M, Taube W: The challenge of evaluating the intensity of short actions in soccer: a new methodological approach using percentage acceleration. PLoS One 2016; 11: e0166534

57. Spencer M, Bishop D, Dawson B, Goodman C: Physiological and metabolic responses of repeated-sprint activities: specific to field-based team sports. Sports Med 2005; 35: 1025–44

58. Tanner RK, Gore CJ: Physiological tests for elite athletes, ed. A.I.o. Sport. Champaign: Human Kinetics 2013

59. Tonnessen E, Hem E, Leirstein S, Haugen T, Seiler S: Maximal aerobic power characteristics of male professional soccer players, 1989–2012. Int J Sports Physiol Perform 2013; 8: 323–9

60. Vanrenterghem J, Nedergaard NJ, Robinson MA, Drust B: Training load monitoring in team sports: a novel framework separating physiological and biomechanical load-adaptation pathways. Sports Med 2017

61. Williams JD, Abt G, Kilding AE: Ball-Sport Endurance and Sprint Test (BEAST90): validity and reliability of a 90-minute soccer performance test. J Strength Cond Res 2010; 24: 3209–18

62. Zedda S, Scotti PG, Cardani A, Aresini G, Sartorelli E: Comparison between work capacity evaluated by bicycle ergometer and by treadmill in cyclists, soccer players and normal non-athletic subjects. Med Lav 1970; 61: 452–68

1 Aufgrund der Schwere von bestimmten Verletzungen und des operativen Eingriffs (z.B. einer Ruptur bzw. Rekonstruktion des vorderen Kreuzbands) kann sich der Soll-Zustand eines Spielers während seiner Karriere verändern, da in der Regel keine vollständige Wiederherstellung erfolgt [30].