alt Hacker NewsWhy not? HIIT is based on that person's body. They will hit their bpm much faster than a trained person. I started with HIIT last year in august (2023),reaching 181 bpm max and averaging 176 (I'm 35). Now, 1.5 years later, I do the same exercise (with a lot more strength) and hit 156 bpm average, 176 max. If I halt for 10 seconds (phone ringing), my bpm plummets (150 or even 148) and it's hard to bring back. On top of that, I have to be more careful not injuring myself: my muscles are a lot stronger, so if I use all my strength in an attempt of pushing my bpm, I can hurt my body.
I feel terrible with HIIT either way, which means it does work
Were you completely sedentary before starting?
And I mean, psychologically, the feeling of nearly dying would have been enough to scare me off any exercising had I started with that. Being able to push yourself physically, and enjoying it, is a skill that needs to be learned gradually for most people.