Is it medically safe to push the limit until your body stops you dead, by vomiting? [Or is there some other sign(s) we should be watching for?]
And is this a built-in limit, that we all definitely have, so we can just go FULL rip, until the body forces us to stop? Not asks, not demands, forces.
Or is pushing over a certain line for more than a couple seconds medically dangerous, and we should not be doing this, risking a __________ [coronary, stroke, arterial tear… what?].
And if the answer is “NO, DO NOT DO THAT!!”, then how we can find our maximum safe HR for testing and max intervals?
-Related, known, not the answer: Cyclists bible will help you use a test to calc your threshold HR, and HR training zones, maxing I think at 107% threshold. This doesn’t tell us if WE would be safe to hold 107% for any length of time. This will vary, based on individual “default” HRs, and fitness. [My book is at home. No disc of finding individual safe max that I could find.]
-Related, known, not the answer: The talk test, etc. Haven’t found anything solid to find max push HR.
-Known, very important: HRs, and thus safe max HRs, are intensely individual, and highly variable. I feel very near the top around 168 - 170. My partner jogs at 180, and runs comfortably for minutes at a time at 190 - 192. I’ve seen a vid of a female cyclist on a Zwift race holding 220 indefinitely… tens of minutes!! : O If I magically jumped my HR forward, past the vomiting stage, direct to 220, for sure I’d have a coronary. My heart couldn’t take it. It would be impossible for me to “train up” to holding that HR, I know that, no interest in it, not the point! : )
-Known, very important: It varies immensely day to day. Sleep, nutrition, Na, K, Mg + others balance, fatigue, etc.
-Known, very important: You obvi have to work up to pushing to your own max. You can’t be sedentary for 5 years, and then jump up and sprint until you vomit. This would be extremely dangerous. Think we all know that! Let’s keep the disc focused on people who take pushing watt limits & HRs pretty seriously, and have been practicing and learning for a while.
-Known, acknowledged: Maxing out is a strong workout on the heart. If you DO have an unknown underlying heart condition, this might cause an event, which could be catastrophic, that would not happen to a healthy individual. Nobody can promise anyone that your heart can do ______. It is known! : ) Talk to your docs, if you have any reason to suspect anything!
But for those of us who don’t have a condition, and love to train hard… how do we find that safe limit?
I would imagine there is some kind of measure or test we can do. Like, steadily increase your intensity & HR until you vomit [or other symptom? Can’t count backwards from 10 in your head? What?]. Ok, now THAT is 100%, and it’s actually quite dangerous. So only do 95% of that, ever, in training, including Ramp Tests. DO NOT break that.
Or like, you can’t go until you vomit even once, you almost died when you did that, so go until [insert symptom X]. Now, that is your 60%, do the math, and never take it above 95%.
I sort of imagine due to the daily variability we should actually be paying more attention to _______ symptom as our max, and not our actual HR. Right?
Or is it like, no, when you vomit, having a heart attack is still like 40 - 50 BPM ahead of there. You’re nowhere near the danger zone. Go as hard as you want and are able to!!!
Thanks in advance for all info & help!! Have a great ride today!!
[Did a ton of digging on net + TR forum, no answer found. Apologies if duplicate.]