Through three outstanding editions, Travell, Simons & Donnelly's Myofascial Pain and Dysfunction: The Trigger Point Manual has set the standard in the field of myofascial pain, dysfunction, and therapeutic modalities. In the 4th Edition , lead editor Joseph M. Donnelly brings this groundbreaking reference fully up to date with the latest research on trigger points. In a single, full-color text, both students and clinicians will benefit from an intuitive format, integrated learning aids, new digital resources, instructive photographs, and iconic pain referral pattern images. Discusses the pathophysiological and biopsychosocial models for muscle pain and dysfunction with updated research, as well as treatment for trigger points that can be performed by a variety of practitioners including physicians, physical therapists, massage therapists, chiropractors, and athletic trainers. Integrates in-text learning aids throughout, including case studies and Q&As that help students master the material and apply it to clinical practice. Includes illustrated pain referral pattern summaries and clinical consideration chapters with common clinical conditions associated with trigger points in each muscle section. Features new digital resources for students and instructors: questions that test comprehension; video clips that illuminate deeper muscle groups that benefit from 3D presentation, such as head and neck, pelvic girdle, and spine; a test bank for summative assessment; and updated PowerPoint slides that reflect changes in the text.