Abstract
This paper provides fundamental features of representative analytical techniques, such as kinematics, kinetics, dynamics contribution analysis and simulation, for evaluating sports motions. The first one of the techniques is kinematics analysis which is a fundamental method to quantify geometric parameters, such as position, velocity, angular displacement and velocities of body parts and joints. The second one is kinetic analysis which quantifies kinetic parameters such as joint torques and joint forces by using equation of individual segment motions. The third one is dynamics contribution analysis which obtains relative contributions of joint torques to the generation of evaluation parameters, such as whole-body eg acceleration, segment velocities, by using analytical form of the equation of motion of the target system. The last one is simulation which obtains virtual motion data outputs through time integration of the equation of motion of the target system with joint torque inputs.
