Thank you for viewing. [Product Condition] I am selling this because I no longer need it. Please check the images for the condition. Thank you for your consideration. #return↺ ← List of other products If you wish to purchase multiple items, please use Mercari's "Request for Bundle Purchase" feature. Product Description (Completed Version) Thank you for viewing. This book is a training theory book aimed at improving skills in board sports such as snowboarding, surfing, and skateboarding. By mastering the correct posture, known as the "power position," which is the foundation of training, you can aim for stable movements and improved performance. It covers a wide range of topics, from stretching to core training and sport-specific training, making it useful for beginners to experienced individuals. Author Information Susumu Mitsueda JATI Certified Training Instructor, Health Exercise Instructor. Works at the Funabashi Orthopedic Hospital Athletic Training Department. ※ Instant purchase is OK. ※ To prevent trouble, we do not respond to price reduction requests in the comment section. If you wish to lower the price, please use Mercari's "Price Offer" feature. [Power Position Training, Training Book, Board Sports, Snowboarding, Surfing, Skateboarding, Snowboarding Improvement, Core Training, Sports Training, Posture Improvement, Balance Training, Atsushi Ishikawa, Susumu Mitsueda] Thank you for reading to the end.