Spine & Sport Physical Therapy was founded in 1999 as a private-practice spinoff when its founders left academic positions at UC San Diego to build a research-based outpatient PT model, and the company now operates more than fifty clinics across California under Physical Rehabilitation Network ownership following a 2025 acquisition. The Hillcrest clinic at 3975 Fifth Avenue runs a combined manual therapy and measured exercise protocol that sits philosophically apart from the spinal manipulation approach offered up the corridor at Chiropractique. Specialty programs include aquatic therapy, women''s health and pelvic floor PT, video-based running gait analysis, McKenzie Method diagnosis and treatment, vestibular rehab for concussion and balance disorders, and blood flow restriction training. Treatment-floor tools include Graston Technique instrument-assisted soft tissue work, Kinesio taping for post-surgical swelling management, and BackStrong equipment for lumbar rehabilitation. Post-operative protocols for spine fusion, ACL reconstruction, and total joint arthroplasty patients of orthopedic surgeons including Dr. Christopher T. Behr, MD run in staged phases from early-mobility work through sport-specific return-to-play testing. Workers'' compensation lumbar spine injury rehabilitation with radiculopathy represents the most diagnostically complex work on the schedule, combining McKenzie directional preference testing with progressive neural loading programs.