The classes I recall taking are the following:
- First Aid
- Biology & Anatomy (I and II)
- Sports Medicine Basics
- Any physical activity class (gymnastics, dance, weight lifting, etc.)
Then there's your standard classes like English and History, each university has different requirements. The Sports Medicine program core classes have to be take in order and you have to pass each class to progress to the next courses. An classes are only offered in ordered by term (Fall, Winter, Spring, Summer). This links to the progression the the program.
It looks like you might be in the program by now. My undergraduate major was sports and health sciences, and I took chemistry as a requirement for my program. I also took sports medicine, anatomy and physiology, sport psychology, first aid, kinesiology, and biomechanics, among others. I hope this helps.