John Strazewski

Dr. John Strazewski serves as an Adjunct Faculty member at Logan University, where he has been teaching the Upper Cervical Elective course since April 1998. With his dual credentials as a Doctor of Chiropractic (DC) and Master of Science in Education (MSEd), he brings both clinical expertise and educational methodology to his teaching role.

Dr. Strazewski's primary research and teaching focus centers on the Toggle Recoil technique, a specific chiropractic adjustment method also known as the HIO (Hole-In-One) technique. His work examines the biomechanics of spinal manipulation, particularly focusing on force-time profiles and the pedagogical aspects of teaching precise manual techniques to chiropractic students. His research bridges clinical practice with educational methodology in chiropractic training.

His scholarly contributions demonstrate a consistent focus on the Toggle Recoil technique over multiple decades. Through both his book publications and research articles, he has documented the technical aspects of this specialized adjustment method and investigated how chiropractic students develop proficiency in its application. His work with colleagues has objectively measured the force and speed characteristics of this technique across different practitioner experience levels, revealing a unique dual-peak force-time profile not found in other spinal manipulation methods.

Dr. Strazewski maintains an active role in chiropractic education at Logan University, continuing to teach the Upper Cervical Elective course that he developed. His enduring commitment to this specialized area of chiropractic technique instruction spans more than two decades, reflecting his dedication to maintaining high standards in chiropractic education and preserving specialized adjustment techniques within the profession.