Hoping someone can help me out here. I just did my threshold test via the 30 minute run method. The 80/20 Running book says to warm up, then run as far as you can in 30 minutes, with your lactate threshold being the average of your last 10 minutes. A friend of mine who uses the 80/20 Triathalon book informed me that it’s the average of the last 20 minutes and I see on here that it’s the last 20 minutes.
Is that true? Is there any way I can calculate my average from this? I can’t find a way in my Nike Run Club app or my Apple Run app to take HR averages for specific periods of time, so when I ran I restarted the workout at the 20 minute mark, so I have it split into the first 20 minutes and the second 10 minutes.
My desire to do this again is minimal, I am really hoping someone can help me out here.