I haven't done an FTP test, and don't own a power meter. I do have a LT test (186) and a MHR of 210. How do I adapt these workouts so I can use them with HR instead of power?
(And i know it's a lagging metric, i have no money to spend on power right now. I just got my license and I want a car so I don't rely on my parents to get to 8 AM junior races which are 3 freaking hours away. /rant)