Yang Rui, 64, practices Emei knife skills with fully extended movements and many ups and downs. Since the age of 13, he has been honing the skill, which he believeshas benefited his sense of balance and flexibility as he ages. “Knife skillsare characterized by the movement of hands and feet, especially the motions of feet changing constantly, quickly and forcefully. The changing styles take both offence and defense into consideration,” Yang explained. [Photo provided to people.cn]