If you are only a year through your Sport Science course, then its not too late to drop out and do a Physio BSc.
I only realised that I wanted to do Physiotherapy about 2 years into my Biology course, so I had to stick it out.
I have just started an MSc Physiotherapy course.
If you have any questions about the MSc course and want to know what it's like then don't hesitate to ask. (I also have a YouTube channel where I'm regularly posting day in the life videos as a Physio student at Southampton Uni!
Matticus, 21, Physiotherapy Student, http://www.youtube.com/c/MatticusVLOGS