Originally Posted by
aplcr0331
Highly doubtful a 16 year old cyclist would get their BP up to 220 when they were only cycling at 75% capacity. You certainly wouldn't have 220 as your HR when only riding at 75%.
I mean if I ride at 75% I don't even get to my LTHR. 75% of my max HR and 75% of max power would be around mid Tempo or Sweet Spot.
I'm guessing you get nowhere close to "HIT" on your 3 rides a week.
Do you have a HR monitor or a power meter?
Well, it was a long time ago, it doesn't matter now. Maybe they had a method to artificially increase cardio workload for reaching a target, as I clearly remember heart beats abnormally fast and strong compared with perceived effort, which was well below maximum.
No power meter now - much too expensive for the the value it adds, I'm not a pro. Just Garmin HR meter - that's fairly accessible.