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|Title:||Using dual euler angles for the analysis of arm movement during the badminton smash|
|Citation:||Sports Engineering, 2005; 8(3):171-178|
|Koon Kiat Teu, Wangdo Kim, John Tan and Franz Konstantin Fuss|
|Abstract:||Camera techniques are typically used in the study of human movement. However, as the number of joints and markers involved in a study increases, data extraction and calculation become increasingly tedious and complicated. To overcome this challenge, we propose a method of study that simplifies data extraction and calculation by using an electrogoniometer and dual Euler angles. The contribution of the rotation of each arm segment to produce a racket head’s speed was identified in the context of a badminton smash. The contribution of each segment rotation was computed using dual velocity analysis. A set of orthogonal Cartesian frames was established for computing the anatomical rotational velocities for each of the three segments of the upper arm. Electrogoniometers were attached to the subjects during the execution of the smash to obtain measurements of joint angles throughout the motion. To test the algorithm, the calculated velocity of the racket head was compared to the measured velocity. The calculated velocity was derived from an algorithm, while the measured velocity was obtained from a video image. The results are similar, indicating that the dual velocity method is suitable for determining segmental velocities in such kinematic situations.|
|Keywords:||arm segment rotation; dual Euler angle; dual velocity; goniometer; kinematics; racket head speed|
|Appears in Collections:||Mechanical Engineering publications|
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