Empirical evidence. Test it, prove it.
Updated with a new link, 2015-Sept-10
Full video: Kiai Master vs MMA fighter
Related Posts
Possibly worst taekwondo martial arts demo ever
Brother Steve Todd brought this to my attention. I have chosen NOT to use my words. http://www.yout...Watch Kajukenbo GM Eric Lee in “Weapons of Death”
Weapons of Death (1981) [NR] Amazon Instant Video {included FREE with Prime Instant Video} St...