In most cases, this qigong regimen consists of 12 movement sequences. There are some versions of the Yi Jin Jing with many more movements (22, 49, 108, 216). Some of the longer versions of the Yi Jin Jing include movements from the Eight Section Brocade Routine, the Animal Frolics Routines, the Louhan Routine, or the Bone Marrow and Brain Washing Routine.
Most people practice a 12 movement version of the Yi Jin Jing that was described in a book published by Pan Weiru in 1858 called "Essential Techniques for Guarding Life." Also, Wang Zuyuan published a book in the 1880's titled "Illustrated Exposition of Internal Techniques" that described the same qigong routine as did Pan Weiru.
Names of the Yi Jin Jing Qigong Movements
1. Wei Tuo Presenting the Pestle 1
2. Wei Tuo Presenting the Pestle 2
3. Wei Tuo Presenting the Pestle 3
4. Plucking Stars on Each Side
5. Pulling Nine Cows by Their Tails
6. Showing Talons and Spreading Wings
7. Nine Ghosts Drawing Sabers
8. Sinking the Three Bodily Zones
Three Plates Falling on the Floor
9. Black Dragon Displaying Its Claws
10. Tiger Springing On Its Prey
11. Bowing Down in Salutation
12. Swinging the Tail
Some claim that the Yi Jin Jing was created by the famous Zen Patriarch Bodhidharma (Da Mo) around 520 CE, and refined over centuries by Shaolin monks, while others argue for an even more ancient Daoist lineage.
There are numerous instructional DVDs available now for the 12 movement verion of the Yi Jin Jing. I like the instructional book and DVD by the Chinese Health Qigong Association:
Yi Jin Jing: Chinese Health Qigong. Compiled by the Chinese Health Qigong Association. Beijing, China, Foreign Languages Press, 2007. 95 pages, charts, includes an instructional DVD. ISBN: 9787119047782. VSCL. "Qigong is an aspect of traditional Chinese medicine that involves coordinating breathing patterns with physical postures to maintain health and well-being. Yi Jin Jing/ Tendon-Muscle Strengthening Exercises is an accessible, fully-illustrated guide to a particular qigong exercise that focuses on turning and flexing the spine. Based on the twelve traditional routines of Yi Jin Jing, the exercises covered in the book feature soft, extended, even movements that invigorate the limbs and internal organs. In particular, practice of the Yi Jin Jing exercises improves flexibility, balance and muscular strength, and has a beneficial effect on the respiratory system. Each routine is described step-by-step and is illustrated with photographs and key points. The authors also point out common mistakes and offer advice on how to correct these. Complemented by an appendix of acupuncture points and accompanied by a DVD, this book will be of interest to Qigong and Tai Chi practitioners at all levels, students of martial arts and anyone interested in Chinese culture." - Singing Dragon.
For a good book on the theory of the Yi Jin Jing, read Qigong: The Secret of Youth: Da Mo's Muscle/Tendon Changing and Marrow Brain Washing Classics. By Yang, Jwing-Ming, Ph.D., 1946-. An Advanced Qigong Regimen for the Serious Practitioner. Boston, Massachusetts, YMAA Publication Center, 2000. Second Edition 2000, First Edition 1989. Index, appendices, charts, 312 pages. ISBN: 1886969841. VSCL.