Armed with a wooden knife and shield, a teenage girl fends off four sword-wielding boys with high-flying kicks in an action-packed homage to Thailand's neglected swordfighting tradition.

The fighters are part of a growing group of students at a school on Bangkok's outskirts mastering "Krabi Krabong," a martial art used in centuries-old warfare between rival kingdoms.

AFP / Lillian SUWANRUMPHA Soldiers used to deploy the elegant Krabi Krabong, meaning "sword staff", in hand-to-hand frontline combat

"We add new tricks and routines to make it more exciting."

Soldiers used to deploy the elegant Krabi Krabong, meaning "sword staff", in hand-to-hand frontline combat or from the back of war elephants.

AFP / Lillian SUWANRUMPHA Practitioners now duel with mock weapons in contests or for entertainment

But it has failed to catch fire unlike Thailand's better known martial art of Muay Thai kickboxing despite campaigns to teach it in public schools.

The lack of experienced trainers and the complexity of managing an array of weaponry while engaging in hand-to-hand sparring makes it "a difficult art form", school coach Phatcharaphon Banditketmala told AFP.

AFP / Lillian SUWANRUMPHA The club has also cultivated a troop of female fighters who account for nearly half of the team

In order to spice things up for a younger audience, teachers and students at the Thonburi school have added more moves and gymnast spins, giving fighters in action the appearance of blockbuster stunt doubles.

"It's a very cool sport that teaches you about focus and partnership," team captain Nattapong Pulluk told AFP.

AFP / Lillian SUWANRUMPHA The schoolgirls say it has armed them with self-defense skills

It has also cultivated a troop of female fighters who account for nearly half of the 22-strong team.

"Some girls may love cosmetics but I like challenging activities. And I get to exercise," Nantakarn, who has trained for five years in the sport, told AFP.