User blog comment:Awesomesix/ERB Contestants Battle to the Death/@comment-26209006-20150303050537/@comment-26209006-20150303063044

If you can hit people without using any magical powers, chi, spirit energy, or whatever, it's Physical. Martial Arts doesn't involve any of those things above, therefore, it is a physical capability.

You're right about the Kaio-Ken thing, though.