A post-grad qualification in physiotherapy such as sports physiotherapy will cover such topics as exercise science and biomechanics but it will be primarily therapy oriented. It will be exclusive to physiotherapists. Kinesiology, biomechanics and exercise science courses may cater to other professionals. A biomechanics or kinesiology qualification will concentrate on the basic and applied movement science, often focusing on sports and athletics. An exercise science qualification prepares you more for work as an exercise physiologist so it will include biomechanics but will cover exercise physiology..

These courses all overlap so in choosing a course you need to look at the curriculum, prerequisites and learning objectives to understand what they university is trying to achieve. What you choose to do should be based on your career objectives