A three dimensional kinematic method for determining the effectiveness of arm segment rotations in producing clubhead speed.
Teu, Koon Kiat.
Date of Issue2005
School of Mechanical and Aerospace Engineering
Most golfers tend to associate the improvement of their games with the improvement of their golf swing. This set a trail of searches for the elusive 'perfect swing'. The aim of this research is to explore various methods to examine, quantify and analyse various aspects of the golf swing. One study involved utilizing electrogoniometer (Biometrics, UK) to obtain the joint angles and joint velocities of the left arm throughout the swing motion. Using algorithm developed with dual number, the dual Euler method, the locations and velocities of the measured segments or end-effectors were calculated. In this way, the swing can be examined, quantified and analysed. Verification of the results with video shows good agreement. The results were then animated to illustrate the arm movement and the swing path of the club. The goniometers and the dual Euler method together give plentiful of details and insights that conventional three-dimensional methods could not reveal. For example, segmental analysis reveals the importance of hand flexion and supination in contributing to high clubhead speed.
Nanyang Technological University