Advertise on Bikeforums.net



User Tag List

View Poll Results: Is your MHR 220-Your_Age???

Voters
20. You may not vote on this poll
  • Yup - it's pretty close (within 5 bpm)

    4 20.00%
  • No - my MHR is a little higher (5-10 bpm higher)

    6 30.00%
  • No - my MHR is a LOT higher (10 bmp or greater)

    10 50.00%
  • No - my MHR is a little lower (5-10 bpm less)

    0 0%
  • No - my MHR is a LOT lower (10 bmp or less)

    0 0%
Results 1 to 9 of 9
  1. #1
    bac
    bac is offline
    Senior Member bac's Avatar
    Join Date
    Jun 2002
    Location
    Pennsylvania
    My Bikes
    Too many to list!
    Posts
    7,487
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    220 - age ... myth?? You make the call!

    The standard of 220-age in terms of maximum heart rate does not seems to translate very well in my case. I'm 35, and my MHR is around 200bpm. I wonder how many of us are close to this theoretical number of 220-age? Is it more myth than truth, or do we as cyclist generally have a higher MHR??

    ThanX!!!

  2. #2
    It tastes like burning! deliriou5's Avatar
    Join Date
    May 2002
    Location
    SOUTH Jersey
    Posts
    1,014
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    my age is 23, and my MHR is at LEAST 211 (that's the highest i've ever seen on my HRM)
    The only true knowledge is knowing that you know nothing - Socrates

    Back on the bike!!

  3. #3
    cycle-powered nathank's Avatar
    Join Date
    Mar 2002
    Location
    Munich Germany (formerly Portland OR, Texas)
    My Bikes
    '02 Specialized FSR, '03 RM Slayer, '99 Raleigh R700, '97 Norco hartail, '89 Stumpjumper
    Posts
    1,848
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    well, like most statistics, it's only an average...

    i think the numbers i heard are:
    ** 80% of the population is within +/- 5bpm from the formula predicted value (when using the 226-age for women)
    ** but for the other 20% the variation can be QUITE large

    often, a huge variation has some medical condition-related aspect. for example, a MTBer friend of mine had some condition where his heart couldn't reach high levels so at age 27 he would ride in the 99-109 range and had a max of like 125. and my girlfriend has a weak heart valve so it doesn't close completely when the heart pumps, so it takes more beats, so her max is like 240 or something and when running she is quite fine and can speak normally and not out of breath at 210 or so...

    in my case, i'm 31, so 220-31 = 189, and my max is about 194, so 5 beats high.

    i also think for very sedentary people or obese people the numbers can be different... but i'm not sure here - theoretically it shouldn't matter, but i guess if your heart is so untrained then who knows...
    why drive when you can ride?
    now a fully certified German MTB Guide! (DAV)

  4. #4
    Around now and then DnvrFox's Avatar
    Join Date
    Aug 2001
    Location
    Around now and then
    Posts
    20,883
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    It is only an approximation, and, like most guides, and can vary from person to person. It is like saying the average height of US males is 5' 10" or something like that.
    DnvrFox - still bicycling, swimming, walking and weight lifting at 74yo is participating a bit in BFN 50+.

  5. #5
    Huachuca Rider webist's Avatar
    Join Date
    Jun 2002
    Location
    Charlotte, NC
    My Bikes
    Fuji CCR1, Specialized Roubaix
    Posts
    4,274
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Numbers like this one and recommended BMI numbers are approximations. Whether a government or an insurance company, they have to be careful when putting out numbers and formulas like these. They certainly do not apply to everyone, but are "safe" approximations.

    Were they to press the numbers a bit, I suppose they might run some risk of pushing people too far and ultimately hurt them. An individual's MHR is best determined by a medically supervised stress test (pricey and inconvenient) and BMI by an underwater weighing (pricey and inconvenient.)

    If you use the formula 220 minus age and exercise within the 65% to 85% range, I am certain your session will be within the aerobic range. Maybe not your training range, but at least aerobic.

    My HRM allows me to set my own min and max. Since I found myself constantly going over the max during my exercise and exceeding the min with very little exertion, I simply raised my numbers in my settings a bit.

    Carl
    Just Peddlin' Around

  6. #6
    Breaker of Spokes P. B. Walker's Avatar
    Join Date
    Aug 2002
    Location
    N. Virginia
    Posts
    493
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm 32.. so my MHR would be 188 using that formula. For the longest time I only observed 193 on my HRM. So I thought I was just off by 5bpm. Then I did my first 10 mile Time trial. I went all out and consequently got a new MHR of 202. I'm guessing I could go even higher too if I added some good hills. I just use the 202 number for now, at least until I see a higher number on my HRM.

    PBW

  7. #7
    Junior Member Guillermo's Avatar
    Join Date
    Jun 2002
    Location
    Chicago
    Posts
    337
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How do you find MHR? Just slap on a HRM, pound away, and see how high you get?

  8. #8
    It tastes like burning! deliriou5's Avatar
    Join Date
    May 2002
    Location
    SOUTH Jersey
    Posts
    1,014
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    actually, your MHR will be a little higher than the higest you've ever seen on your HRM... like someone said, you can't really know exactly unless you do that stress test thingy.
    The only true knowledge is knowing that you know nothing - Socrates

    Back on the bike!!

  9. #9
    put me back on my bike stewartp's Avatar
    Join Date
    Sep 2001
    Location
    Cherves-Chatelars, Charente, France
    My Bikes
    Airbourne Carpe Diem + own brand fixed gear
    Posts
    328
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Originally posted by deliriou5
    actually, your MHR will be a little higher than the higest you've ever seen on your HRM... like someone said, you can't really know exactly unless you do that stress test thingy.
    I don't know about that . . depends what you mean by "a little" - 1 beat, 2?

    One thing for sure though your MHR won't be LOWER than the highest you've ever seen on you HRM!

    There's an EXCELLENT book called "Heart Monitor Training for the Compleat Idiot" by John L. Parker Jr

    He gives the various competing theories for estimating MHR from your age as well as a stress test you can conduct yourself.

    Stew
    The older I get the better I used to be.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •