The purpose of the study was to determine the effectiveness of combined physical therapy Intervention in the treatment of whiplash-associated disorders. A case was selected from an outpatient clinic for a 31-year-old male with whiplash injuries due to an auto accident. The outcome measures were pain (0-10 pain scale), disability (disability index) and quality of life including social life activities. Two approaches were used to treat this case, 1) early active physical therapy treatment three times a week for four weeks and 2) a one-month home exercises program with self-mobilization techniques. The individual was off work for two months during the treatment. Conclusion and results: After two months of treatment a physical therapy re-evaluation was completed and the findings included within normal limits for cervical and upper and lower extremities range of motion, pain free at rest and during activities, cervical and upper extremities muscle strength 5/5, and normal balance throughout. He was able to return to work without any restrictions. Because this individual was also taking analgesics and NASIDs for the first four weeks of physical therapy, this may have influenced the resulting functional outcomes. Therefore, it is difficult to determine whether the physical therapy interventions resulted in the improvements seen in this patient. Further study for the effectiveness of physical therapy treatment in whiplash-associated disorders is needed.