Qwan Ki Do or Quán Khí Đạo is a Vietnamese martial art that was codified in France in 1981.

As well as improving physical attributes like strength and flexibility in adults, the practice has been shown to help promote good mental health in children.

Qwan Ki Do or Quan khi Dao was founded by Pham Xuan Tong in France in 1981.

For example, the use of hands and arms can be divided into both direct and circular strikes, the former including moves like Thoi Son, a form of forward punch, and the latter includes Thoi Son Ban Ha, in which one arm rotates vertically while the other moves downwards with the palm facing sideways.

[11] In addition to the self-defence benefits of the martial arts, a study published in the Timişoara Physical Education and Rehabilitation Journal showed that the practice improved the motor ability of lower limbs.

[12] It has also been shown to improve the aerobic capacity, balance, strength, body weight, and flexibility of practitioners, both elite athletes and elderly amateurs.

[13][14] A positive effect has also been reported on the mental health of children, based on the emphasis on a moral code, respect, self-confidence, self-control, self-determination, social interaction and teamwork.