In terms of Martial Arts as Buddihist Practice I would refer you to 2010 August edition of: The Middle Way, Journal of The Buddhist Society, August 2010 Vol 85. Article entitled "Martial Arts as Buddhist Practice" by Benjamin Charlton.
"When the handgun appeared five centuries ago, traditional martial arts were among its first victims. Swaggering grandmasters, the erstwhile tigers and dragons of Asia, became the dodos of the battlefield. Their unequalled ability to hack, slash and grapple equipped them perfectly for an environment that no longer existed. They seemed destined for extinction"
Stopped reading at this point.