The research group consisted of 25 elite players (n = 25, age = 26.5 +- 9.1 years, height = 186.1 +- 7.8 cm, weight = 86.7 +- 14.8 kg. For recording force effect of lower limbs on the surface, two force platforms Kistler B8611A (KISTLER Instrumente AG, Switzerland) were used.
All participants performed three types of a vertical jump, T1 - countermovement jump with arms included, T2 - countermovement jump with arms excluded, T3 - squat jump. On the basis of measured and calculated data from three types of jumps, we may notice that the highest jump was reached in the first type, concretely h1 = 0,453 +- 0.09 m.
This result was higher by 13.3 % (0.06 m) in comparison to countermovement jump without arm swing (T2) and by 20 % (0.09 m) than in a squat jump (T3). When comparing force manifestation under the right and left lower limb in CMJFA test, we found out a significant difference between the examined means (MRL = 1175.6+-167.5 N, MLL = 1086.0+-202.8 N, t24 = 3.86, p<0.01, table 2). the highest jump was reached in the first type, concretely h1 = 0,453 +- 0.09 m.
This result was higher by 13.3 % (0.06 m) in comparison to countermovement jump without arm swing (T2) and by 20 % (0.09 m) than in a squat jump (T3).