Abstract
The analysis of the lower limb explosive power was performed on two of the most valuable Romanian triple jumpers in 2013.One of the tested athletes was Marian Oprea,Olimpic silver medallist in 2004 Athena and in a same time Romanian record holder on senior triple jump event with a result of 17,81 m. The other tested athlete was Valentin Scanghel, Romanian record holder, also in triple jump event on IIIthJuniors category, with 14,70 m, as personal best.
The used device for the investigation of explosive power of lower limbs was Optojump Next System. In order to identify the level of explosive power of lower limb, each athlete performed three tests related to standing repetitive jumping of two legs and one test addressed to single maximal jump on two legs. The used tests were : 15 seconds repetitive jumps test; 30 seconds repetitive jumps test; stiffness jumps test and squat jump test. The order of test execution was:the first one,15sec. jump test, the second, 30 sec. jump test, then squat jump test and stiffness test. During the tests it was followed H-average height reached by center of mass, Tf- flying time, Tc- contact time, Pwr- power. Also, other parameters, such as: specific energy(J/Kg), specific power(w/kg), total energy (J) and total power(W)were determined by the Optojump Next System software on each performed test.
Comparing the results we are able to identify the level of anaerobic alactacid power, the level of maximal explosive power and the level of reactive power and muscular elasticity, which can be used in the training process. |