TY  - JOUR
AU  - Zahálka, František
A2  - Zahálka, František
DB  - BISp
DP  - BISp
KW  - Biomechanik
KW  - Bodenbelag
KW  - Bodenbeschaffenheit
KW  - Bodenkontakt
KW  - Energieverbrauch
KW  - Fußballspiel
KW  - Gelenkwinkel
KW  - Kinematik
KW  - Kunststoffrasen
KW  - Körperschwerpunkt
KW  - Laufbewegung
KW  - Laufgeschwindigkeit
KW  - Schrittfrequenz
KW  - Schrittlänge
KW  - Technik, sportliche
KW  - Trainingsgestaltung
KW  - Untersuchung, vergleichende
LA  - eng
TI  - Kinematics of running on different types of football playinground surfaces
TT  - Die Kinematik des Laufens auf verschiedenen Spielfeldoberflächen beim Fußball
PY  - 2007
N2  - Running is one of the most important movement activities for football players and running technique depends on the type of the running surface. There are new types of artificial surfaces for football. The hard type of surface presents grass of the first generation which consists of the carpet with thin film of siliceous sand. The grass of the third generation consists of the artificial grains and several cm of crush rubber and presents the soft type of surface. The aim of this study was to determine the difference of running technique on two types of artificial surfaces, soft and hard type of artificial grass. 15 young elite football players were included into this experiment. The individual AT 170 +/- 5(SD) pulses per minute was set in the laboratory for every player before the experiment. For description of the differences in technique it is possible to use 3D kinematics analysis. By use of average values these results were obtained. The total period of one running double step which consists of flying and contact phase is longer on soft surface by 15%. The contact phase as a period of the foot being on the ground extends by up to 35% and the flying phase is shorter by one quarter in comparison with the movement on hard surface. The run soft surface differentiates most significantly by the period of the running double step (by 6%), by greater vertical variations of Centre of Gravity (C.G.) of the body (by 30%), by higher frequency of steps (by 13%) and by lower average speed of C.G. of the body (by 23%). Increased angle of the take-off results in a shortened step and higher frequency, which finally results in bigger energy. Verf.-Referat
SP  - S. 47-54
SN  - 1212-1428
JO  - Acta Universitatis Carolinae / Kinanthropologica
IS  - 2
VL  - 43
M3  - Gedruckte Ressource
ID  - PU200807001922
ER  -