To be honest, they were quite vague about the details before the test. However, they insisted that my wife came with me to drive me home, which should have given me some clues…
UK health care is a complete lottery - occasionally very good. My GP surgery is rubbish, but the local hospital, despite a poor reputation, has been excellent for both myself and my wife.
Sounds like your exercise protocol is working. MMMV of course but I ought to follow the lead of doing HIIT.