If you are a karate student you probably chamber your non-striking hand. But why do you do this, and what is the position of the chambered hand? Also, why do different systems do things differently, and why isn’t chambering explained by instructors?
There are many who disbelieve the worth of traditional technique, including chambering. For in many fighting arts and styles the non-striking hand is kept up to protect the head. Within their narrow vision of combat, their interpretation is quite correct.
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