Thank you for viewing! If anyone is looking for a book by a popular trainer, please consider this! "Back Loosening" Stretch: Pain Disappears with Just 5 Twists!" Takaaki Iwai Price: ¥1300 + tax First Edition From the sales site: Body pain, represented by lower back pain, stiff shoulders, and neck pain. As a medical trainer for the Japanese national soccer team, the author has been caring for body pain, and says that the cause of much body pain is often not in the area where the pain is felt, but in the "back." The spine has a narrow range of motion in its joints, and there is almost no opportunity to move it in daily life, so it is a place that tends to stiffen. When the bones and muscles of the back become stiff, you have to move your lower back and neck to compensate, which causes pain in the lower back and neck. Furthermore, the stiffness of the muscles and bones in the back, which can be called the backbone of the body, can also cause autonomic nerve disorders, high blood pressure, sensitivity to cold, decreased immunity, and other whole-body problems... In this book, Mr. Iwai introduces the "back twist stretch" that he has practiced and found effective in caring for professional athletes. With just 5 stretches a day, you can loosen the muscles and bones of your back and reset your body's pain and discomfort. [Condition] It is a beautiful item with some signs of use. No obi (paper band) I have read it once or twice. No openings or folds. [Please be sure to check!] This is a used item. It will be stored at a private residence, so please understand that there may be minor oversights. Please understand that this is a used item before purchasing. *Please refrain from negotiating prices. ⚠Returns are not accepted under any circumstances. If you have any concerns, please ask questions before purchasing. Thank you very much.