Sports Medicine
Disclosure: I need to update my current membership w/ ACSM.
Sports Medicine Science has become an area of study due to its rehabilitative and treatment nature of it.
After many years immersed in emergency/tactical medicine, although having a strong love of it-- I became burnt out.
I needed an area of study that focused on strengthening and rebuilding.
I explored various personal trainer programs - but found I did not want to be in a gym with clients.
Researching more, I found an online college American Public University that provides a Masters's level training program in Sports and Health Sciences. I have been slowly by steadily working toward my Master's and enjoying the academic challenges provided!
Equestrian biomechanics is of particular interest and regular study.