I thought this was a really good article! I think it is very important to know/keep track of how hard you are working. I like that there are several methods. Remember though it is an individual thing. I know Labrinyth commented on looking at other people's HR - you shouldn't do that and passed judgements. I have to take a beta-blocker (and I'm not overweight). Drugs like that literally stop your HR from going too fast. If I have just taken it my maxrate HR is about 105 yet I am working out plenty hard! If it is late in the day I can get my HR up to 140 with barely doing anything. I tend to use the the 'Talk' test since obviously my HR is not the best gauge. It is true I will never be able to be a professional athlete but that doesn't mean I still can't get lots of benefits from exercising!
This was a great article for me. When I exercise I am always going over my THR and wondered why since I was not overexerting. When I calculate my THR using the Karvonen formula it is right where it needs to be. Because I have a very low RHR (42) I always wondered how this would affect my HR during my workouts and what I should be doing, now I know.
In my case there's a big difference between target heart rate estimates using the simple formula based on age & the Karvonen calculator. If I went by the age-based estimate, my 60-80% target would be much too low (lower end just 100 bpm!). I've just gotten a heart rate monitor, though I've been exercising for years, & I'll use the Karvonen-based range as I go out running with it today!
This is a fantastic article, but unfortunately people simply don't "get" it. Time and time again I'm working out next to someone else who doesn't work in the Target Zone and does not keep the intensity duration needed. Then they lament about why they can't lose!
If you are not losing, read this article and take it to heart -- literally!
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