Abstract This study was undertaken to test the hypothesis that axes of varying weight would have similar velocities and that additional weight would be registered in the form of an increase in kinetic energy. The results essentially support the hypothesis. However, a decrease in the rotational kinetic energy component of the heaviest axe would tend to suggest there may be a limit to the ability of an individual to overcome the angular inertia of a heavy object and that additional kinetic energy gained as a result of increasing the axe weight may be at the physiological expense of the individual. The intuitive design of the current American axe form may have succeeded in its ability to drive rival designs from the scene because its particular dynamic characteristics permit an individual to optimise both the translational and rotational components of the swing.
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