Seiken - Karate Fist
Instructional Video for Seiken
Instructions for Technique
The key to this punch is in the wrist, it should be tilted slightly to make the two knuckles closest to your thumb, so these stick out from the rest of your hand. If the wrist is bent slightly in this manner, it will strengthen your knuckles as the bones align with out and bends in them. When using this hand shape, it is best to punch with the hand twisted slightly, so if you where to look down your arm, the first knuckle would point like a pyramid.
- Red Dragons Karate School UK. Sensei Nathan Foster