davecole wrote:Hitchy wrote:noumenon wrote:Hitchy wrote:noumenon wrote:From your heart rate I figure you're about 38 or younger?
????....OK, I just gotta know, how did you arrive at an age 'guesstimate' based on HR?
From the crude formula, Max HR (for age) := 220 - Age, turn it around becomes Age := 220 - Max_HR.
Eg if you're 38, your max HR would be 220 - 38 := 182. Which is your posted Max HR. As age goes up, Max HR goes down. But you could also have had an easier ride so may not have reached your Max HR, which would mean you could be younger than 38.
The formula is also very rough and ready. There are other formula's, and even so, they assume normal healthy cardio, no current or genetic problems. I'm merely interested because I have been monitoring mine.
At 48 my max should be around 172, yet I regularly hit 175, and have even pushed it to 185. I think I can even take it to 190. Though usually, no matter what activity I am doing (eg sprinting) I puff out around 175. So how close was the 'guesstimate'?
None of this relates to me, different poster...I was just interested in your comment. I assumed you'd say something along those lines...220-your age = max Hr, as a formula is so wildly inaccurate it's pretty much a useless tool as a predictor...I reckon I know more people for whom this doesn't apply, or even comes close, than I do for whom this is accurate....Max Hr is an unimportant number any way...what you really want to know is lactate threshold HR, which can only really be defined by testing, & even that will only give you your lactate threshold on that day, at that time, in those conditions....
http://en.wikipedia.org/wiki/Heart_rate ... _for_HRmax
I think I read somewhere that the 220 - age estimate came from studying sedentary people. So if you don't exercise regularly then your max heart rate degrades with age. If you do exercise regularly then your max hr does not follow that pattern.
I think this is the most telling quote from your link :
'While the most common (and easy to remember and calculate), this particular formula is not considered by reputable health and fitness professionals to be a good predictor of HRmax'
Anyway, i don't want to get into a debate about it, I'm was just assuming Noumenen is a relative newbie & had picked up on info that wasn't accurate, so I thought I'd fill him in. HRmax, of itself, isn't a figure anyone needs to be concerned with...lactate threshold, (LT) or maximum sustainable heart rate (MSHR) are the 'numbers' that coaches will work with...after 40 years of cycling, I have no idea what mine is...I know the highest I've seen, I know my lactate threshold (ish), but that's not evidence that it's the highest I'm capable of, (& even that figure is miles higher than the formula might suggest)