A​J ​​Zelinski, doctor of chiropractic medicine, ​shows how he ​performs soft tissue therapy, or Active Release Technique, on a calf muscle. ART is used to treat shin splints and plantar fasciitis. Zelinski is the director of chiropractic services for Arise Austin Medical Center. His office is in the new Arise Sports Medicine and Rehabilitation Center at 6611 River Place Boulevard.