PEMODELAN GERAKAN LENGAN DUA-TIGA SEGMEN MELALUI METODE LAGRANGE DAN METODE KANE SERTA SIMULASI UNTUK ANALISA PUKULAN SMASH PADA PERMAINAN TENIS LAPANGAN; MODELING OF HAND MOVING ON TWO AND THREE SEGMENT VIA LAGRANGE AND KANE METHODS AND SIMULATION FOR ANALYZING BELTING-SMASH IN COURT TENNIS

V. Galih Vidia Putra, Yusril Yusuf

2012 | Disertasi | Program Studi S2 Fisika

Biomechanics model for two and three arm segments for analyzing a moving of a beating smash on court tennis have been made and designed by Lagrange methods and Kane methods and analyzed using computation. The aim of this research is to show the effective beating smash technique and having a big power for an arms moving in two dimensions both of biostatic and biodynamic, in a flexion-extension and outward-inward condition..for analyzing the moving of beating smash, we have chosen by analyzing the pictures from a professional tennis player. The result of this research are: 1) The Torque’s magnitude of the tennis player depends on the force which rises of the bicep and brachioradyalis muscles and also the magnitude of angles both of the upper arm and lower arm. ; 2) Upper arm has an important role for producing a big torque, with a maximal torque is in a -1/3 of Range of Movement ( RoM) in outward-inward movement; 3) For producing a big torque, with a maximal torque is in a -1/3 of Range of Movement ( RoM) in flexion-extension movement; 4)The difference of torque’s magnitude depends on the angle of upper arm and when the angle is in half of RoM, the difference will be optimal

Kata Kunci : Biomekanik; Smash; Metode Lagrange dan Metode Kane; Range of Movement