Abstract
The aim of the study was to find out differences in power and force production during the power tests with respect to the field position of elite soccer players.155 elite Czech soccer players (age = 24.9 +- 4.8 years) were divided according to the field position into: goalkeepers (G), fullbacks (F), central defenders (CD), wide midfielders (WM), central midfielders (CM) and attackers (A). The players carried out three types of the vertical jump: countermovement jump free arms (CMJ-FA), countermovement jump (CMJ) and squat jump (SJ).The greatest jump height in CMJ-FA, CMJ and SJ was achieved by goalkeepers (43.57+-4.02 cm, 38.41+-3.76, 36.67+-3.98cm).
The worst results were found in attackers (43.65+-4.79 cm, 35.24+-4.52, 34.55+-3.59 cm). Multivariate analysis of variance showed that the effect of field position on the jump height was not significant (F15,447 = 0.84; p>.05, η2 = .03).
The greatest difference in force produced between the limbs was measured in the CMJ test (0.13 N.kg, 9.0 %).The highest jumps were achieved by goalkeepers who dispose of great power of limbs and take-off belongs to primary predispositions for their specific performance.