sentences:  The legend states he taught the exercise to his men to help keep their bodies strong and well-prepared for battle.Martial historian Prof. Meir Shahar notes Yue's mention as a lineage master in the second preface of the "Sinew Changing Classic" manual (1624) is the reason why he was attributed as the creator of Baduanjin qigong.The Baduanjin as a whole is broken down into eight separate exercises, each focusing on a different physical area and qi meridian.