Once used as deadly weapons, to slash enemies apart, Japanese Katana swords are now used by Japanese white-collar women to slash away extra pounds and cut down stress.

The recently opened “Samurai Camp” gym, in Tokyo, looks more like the training ground for modern amazons. More than 100 of them have signed up for this unusual fitness program that aims to help them lose 11 pounds in just one month. The inventor of samurai sword fitness, 31-year-old Takafuji Ukon, believed men would be more interested in the art of Katana wielding, but much to his surprise, women were the ones who flocked to the gym.

Ukon is not a martial arts expert, but he is a master of sword dancing, and knows just what moves to teach, so the women can shed the extra weight. Still, in order to avoid potentially deadly accidents, real swords were replaced with wooden ones, wrapped in tin foil.

Since we don’t live in an era where slashing people is allowed, Takafuji Ukon teaches his students to visualize fat and stress as the enemies, when they’re using the swords. And according to the clients of Samurai Camp, they appreciate the chance to get in touch with Japanese culture, relax, and lose weight, all at the same time.

Photos by AFP via ChinaNews