Hello Mamamiya, My name is Timothy Chen, I am Certified Athletic Therapist, I have also studied Osteopathy for 2 years with osteo-articular manipulation techniques. I am currently working for McGill University for their Sports Medicine clinic at Macdonal campus and Head Athletic Therapist at College Regina Assumpta also I am self-employed. I combine both physio and osteopathy manual techniques to help my patients. Please contact 514-865-1004 I would gladly answer your questions. ... ...