3D Kinematics Analysis of Track Start Movement in Swimming Agus Rusdiana (a*), Angga M Syahid (b), Tian Kurniawan (a)
Universitas Pendidikan Indonesia
Abstract
Swimming is one of the aquatic sports and is one of the popular sports in Indonesia. Furthermore, Swimming is the activity of moving oneself through water using one^s arms and legs while buoyed up by the water, carried out by humans for amusement, exercise, and sport. Currently, the starting technique in swimming that is widely used is the track start, both rear and front weighted techniques and grab start. The main difference between the two starting techniques is the position of the feet on the starting block. The purpose of this study was to analyze the differences in motion kinematics with a three-dimensional analysis approach between male and female athletes using the track start technique in swimming. The method used in this study is descriptive quantitative. The subjects were students of the Faculty of Sports and Health Education, Universitas Pendidikan Indonesia, totaling 16 swimmers consisting of 8 male and 8 female with an average age of 19.5 ± 1.63 years, height 1.72 ± 0.32 m and weight 61.4 ± 2.94 kg. The instruments used in this study were 3 handycams, FRAME Dias motion analysis software, a set of three-dimensional calibration, and a set of manual markers. The results show that the 21 parameters of motion kinematics analyzed have significant differences in the male group whose results are greater than the female group, especially on 7 parameters, namely flight time, total time, height of take-off, vertical velocity of the CoM at take-off, leg power, force and time to 15m. Meanwhile, the contribution of mechanic leg power and force just before take off is a key factor in the success of starting performance in swimming.
Keywords: sport biomechanics- kinematics-, swimming- track start- three dimensional analysis
