Comparison of execution times of Kaedah A for different movement trajectories using Virtual Sensei Lite

Abstract

The main objective of this study is to compare the execution times produced by fending off techniques of Seni Silat Cekak Malaysia (SSCM), Kaedah A for different movement trajectories. Three kind of movement trajectories for Kaedah A were carried out which were Trajectory A (normal path), Trajectory B (curve path) and Trajectory C (starting by pulling the hand to the back and continue as Trajectory A). The experiments were conducted using motion capture system where the movement position of the left hand during the execution of Kaedah A were recorded by Kinect sensor, prior to storing and processing via Virtual Sensei (VS) Lite software. A total of four (4) experienced practitioners from SSCM with their consent were selected to perform Kaedah A techniques. The data acquired were further analyzed to determine their kinematic characteristics. Results showed that the execution of Kaedah A using Trajectory A produced the shortest time and highest velocity with average of 0.071±0.007s and 6.438±0.863ms-1 respectively, compared to Trajectory B (0.087±0.011s, 5.230±0.578 ms-1) and Trajectory C (0.149±0.015s, 2.903±0.273ms-1). Therefore, Trajectory A is considered to be more efficient than Trajectory B and Trajectory C in terms of execution times and maximum velocity produced by Kaedah A.