Martial arts have become increasingly popular in the West, where they
are practiced for self-defense, mental discipline, harmony of body and
mind, physical fitness, and sport. It is estimated that 2-10 million
Americans actively train. The literature pertaining to traditional mar
tial arts training indicates that black belts do not conform to the vi
olent, aggressive stereotypes portrayed in popular martial arts movies
. Moreover, martial arts principles, philosophy, and techniques have b
een successfully applied in a clinical setting to improve the physical
well-being of the physically challenged and to modify the attitudes,
emotions, and behavior of troubled adults and teenagers. Mental imager
y shows promise as a psychological intervention strategy to enhance Ka
rate performance of beginning students. The techniques of Karate are w
ell grounded in physics, and the velocities and tremendous forces and
energies generated by skilled practitioners have been quantitated. Stu
dies have also examined the health-related and skill-related fitness o
f martial artists.