HRM zone?? and 99% effort

rodamyot
rodamyot Posts: 9
edited November 9 in Fitness and Exercise
Just started training again after a year off not exercising much (like once a week 45min cardio). I found a nice place near my home where they do kickboxing training and MAXFIT (something like crossfit but less weight lifting, more anaerobic)
I'am 43 in pretty good shape but a 15 pound over weight to get around 24 BMI or 23% fat.
Now the question: I got a new NEW BALANCE DUO SPORT to calculate calorie burn, and during my training i'm almost always at 99% of effort (that's like over 185 RHM) My last training was 90min and according to my NEW BALANCE I was 1H07min above the zone. Is it dangerous to get the heart pumping that much for that long.
I did a calculation of my HRM zone with the "karvonen formula" and my zone is 132<->154 for 60% to 80% and 192 for 100%.

Thanks

Sorry for the bad english, I'm french, from Quebec.

Replies

  • Goosiesnougs
    Goosiesnougs Posts: 420
    bump.
  • RAFValentina
    RAFValentina Posts: 1,231 Member
    You have calculated your Max HR wrong. DO NOT use the 220-age formula as is now considered inaccurate... look at brianmac.com on how to calculate your Max HR based on your age and gender, it also will tell you to add/subtract depending on your skill level...i.e. elite or not.

    even for age 43, your Max HR using 220-age would be about 177 so your heart rate %s shouldn't be anywhere near those values. and therefore you're probably not working at said intensities.
  • Gt3ch
    Gt3ch Posts: 212 Member
    All these formulas are ballpark guesstimates that are based on a lot of assumption that might not be true for you. I'm in much better shape now than 2 years ago but according to the formulas my max HR & VO2 Max should be slightly less. Hogwash!

    I'm 36 and have been exercising consistently for a while. I'll do cardio routines like that & have my HR around 185 for 45-60 mins plus warmup and cool-down. If you have always been active and these workouts aren't a big deal to you I wouldn't worry. If you're going from no exercise to intense exercise basically overnight and have chest pain and are very winded during the exercise I'd definitely back off. Absolutely make sure you have a clean bill of health from your Dr before you go into the gym and push hard.

    You should be able to have a conversation while working out. If you're very winded you're being very or too aggressive. Honestly it's not a great plan to kill yourself once a week. You're better off doing a few lighter workouts during the week and slowly increase intensity & duration.

    Also check your HR on 2 devices as well as feeling your pulse. They should all pretty much line up. It's very possible your HR monitor isn't accurate.

    Don't go to brianmac.com. That looks like a porn site or something. go to http://www.brianmac.co.uk/maxhr.htm. I think that's what she meant.
  • rodamyot
    rodamyot Posts: 9
    Thanks everybody.
    According to all the formula on "http://www.brianmac.co.uk/maxhr.htm&quot; it make more sense. Max HR about 178.
    I have continuous peek at around 190HR but I recuperate well (30sec to get back to about 175).
    I'm not over winded during workout. We work mostly 2 by 2 and we talk to push each other. And beside sour muscle no pain.
    My last workout was average 156HR including warm up and cool down with max peek HR200.
    I will adjust the setting on my NB watch for a zone between 132 and 178 and I think the % will be more realistic.

    Thanks
  • Azdak
    Azdak Posts: 8,281 Member
    The HRM is just estimating your HR max. So, even though it says you are at "99% effort", you are not at 99% effort. If you are peaking at 200, then your true HR max is higher than 178.

    If you are just counting heart rate, you can just look at your numbers and ignore any "zone" advice. Or you can try changing the programmed max HR number to a higher number.

    "La Vie est Simple--Mange, Dorme, etre Quebecois!" One of my favorite T Shirts....(hope I remembered the spelling correctly)
  • rodamyot
    rodamyot Posts: 9
    "La Vie est Simple--Mange, Dorme, etre Quebecois!" One of my favorite T Shirts....(hope I remembered the spelling correctly)

    "La vie est simple...Mange, Dors, être Québecois" That's a good one :-)

    Thanks Azdak. So basically I will monitor my health and keep going like that. According to my watch the zone is 60% to 80%. I will adjust the HR min and max to reflect what I feel during the workout. That way I'll know when I'm at 95% or 100%.

    Thanks
    Rod
  • Aaloo79
    Aaloo79 Posts: 105
    The HRM is just estimating your HR max. So, even though it says you are at "99% effort", you are not at 99% effort. If you are peaking at 200, then your true HR max is higher than 178.

    If you are just counting heart rate, you can just look at your numbers and ignore any "zone" advice. Or you can try changing the programmed max HR number to a higher number.

    "La Vie est Simple--Mange, Dorme, etre Quebecois!" One of my favorite T Shirts....(hope I remembered the spelling correctly)

    Thanks for this. While I was running today, my heartbeat reached 180 (treadmill showed it) and as per age my HR max should be (220-32) 188. I knew I could run faster and it still has some scope :)
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