There are many options for study beyond A Level PE.
If you want to specialise in coaching or teaching a specific sport, then there's a chance that you'll need to have a degree in physical education. If you plan to study Sports Science or Occupational Therapy, then have GCSE and A-level PE will certainly come in useful when applying to university. However, very institution is different and you should check the entry criteria with individual universities when applying for degree programmes.
At GCSE and A-level, physics, chemistry and biology go well with physical education and will be particularly useful when applying for jobs and university courses. If your school offers sports science or sports science as well as PE, then these subjects will also impress an employer or university.
1. Glasgow
https://www.gla.ac.uk/undergraduate/degrees/physiologysportsscience/
2. Aberdeen
https://www.abdn.ac.uk/study/undergraduate/degree-programmes/849/C600/sports-and-exercise-science/
3. Exeter
https://www.exeter.ac.uk/undergraduate/degrees/sport/exsport/
4. Loughborough
https://www.lboro.ac.uk/study/undergraduate/courses/a-z/sport-and-exercise-science/
5. Edinburgh
https://www.ed.ac.uk/education/undergraduate/degree-programmes/sport-sci
6. Bath
7. Birmingham
https://www.birmingham.ac.uk/undergraduate/courses/sportex/sport-exercise-health-sciences-2.aspx
8. Durham
https://www.dur.ac.uk/sportandexercise/
9. Surrey
https://www.surrey.ac.uk/undergraduate/sport-and-exercise-science
10. Nottingham