Biodynamic characteristics of vertical and drop jumps

  • Milan Čoh Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
  • Mitja Bračič Faculty of Sport, University of Ljubljana, Ljubljana, Slovenia
  • S. Peharec Peharec Polyclinic for Physical Medicine and Rehabilitation, Pula, Croatia
  • P. Bačić Peharec Polyclinic for Physical Medicine and Rehabilitation, Pula, Croatia
  • Milovan Bratić Faculty of Sport and Physical Education, University of Niš, Serbia
  • Marko Aleksandrović Faculty of Sport and Physical Education, University of Niš, Serbia
Keywords: diagnostics, kinematics, dynamics, vertical jump, drop jump

Abstract

The aim of the study was to establish the main kinematic and dynamic parameters that generate the efficiency of vertical and drop jumps. The take-off power was assessed using the following tests: countermovement jump, counter-movement jump with arm swing, jump, drop jump and continuous jump. Kinematic and dynamic parameters of vertical and drop jumps were established using two separate forceplates Kistler Type 9286A and a synchronised 3-D kinematic system CCD SMART-600E. The athlete model was defined with 17 markers sensitive to infra-red light. It was established that the main generators of efficiency in vertical and drop jumps included: take-off velocity, eccentric-concentric time, eccentric impulse, ground contact time and ankle flexion.
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