Kung-Fu, or Tauist Medical Gymnastics, by John Dudgeon, [1895], at sacred-texts.com

24. For the Middle of the Twelfth Month, termed "Great Cold."—Both hands thrown behind, sitting kneeling with one foot extended straight out, with one foot use force right and left alternately each 3 × 5 times, etc. To cure the storage of all sorts of influences in the small net-work of blood-vessels, the root of the tongue hard, painful and unable to be moved, inability to move the body or to lie down, unable to stand great expenditure of strength, thighs and ham space swollen, the pelvis, thighs, legs, feet and back painful, distension of abdomen, rumbling in the intestines, food indigested causing diarrhœa, feet unable to be pulled together in order to walk, the nine openings impervious. (See Figure).