| This
paper discusses the three-dimensional kinematics and kinetics of a
golf swing as performed by 84 male and one female amateur subjects
of various skill levels. The analysis was performed using a variable
full-body computer model of a human coupled with a flexible model
of a golf club. Data to drive the model was obtained from subject
swings recorded using a multi-camera motion analysis system. Model
output included club trajectories, golfer/club interaction forces
and torques, work and power, and club deflections. These data formed
the basis for a statistical analysis of all subjects, and a detailed
analysis and comparison of the swing characteristics of four of the
subjects. The analysis generated much new data concerning the mechanics
of the golf swing. It revealed that a golf swing is a highly coordinated
and individual motion and subject-to-subject variations were significant.
The study highlighted the importance of the wrists in generating club
head velocity and orienting the club face. The trajectory of the hands
and the ability to do work were the factors most closely related to
skill level.
KEY
WORDS: Golf biomechanics, computer modeling, kinematics, kinetics.
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