confused on heart rate

hroderick
hroderick Posts: 756 Member
edited September 24 in Fitness and Exercise
my goal is to lose weight. in addition to counting cals I'm on the treadmill day and getting stronger. i'm up to a 15 % grade now and love watching the cals burned tick higher and faster, but so is my heart rate getting up to 130-140 range. i'm 53 and confused about what heart rate I should target to lose weight? If I'm not burning fat, what is burning?

Replies

  • rileysowner
    rileysowner Posts: 8,328 Member
    Have no fear. What you really want in to burn calories. The whole fat burning zone thing is a myth. Google "fat burning zone myth" and you will find an abundance of articles about it. Here is one http://www.active.com/triathlon/Articles/The-Myth-of-the-Fat-burning-Zone.htm
  • jhardenbergh
    jhardenbergh Posts: 1,035 Member
    I think you are suppose to take your age and subtract it from 180 to find your max heart rate. And I think you if you are in the range of 60-65% is your low point for calorie burn.
  • mistyb47711
    mistyb47711 Posts: 861 Member
    Check this out to find your target heart rate for exercising.....

    http://www.mayoclinic.com/health/target-heart-rate/SM00083
  • The government standard is take 220 and sub your age to find your max heart rate, which would be 167 bpm for you, if you are trying to lose weight you should shoot for 70% -80% of your max HR. (I think)
    116 - 133 for you. There are other ways to figure out your max heart rate and target zones. This one is the simplest I have found

    The other thing to consider is that usually the equipment in the gym isn't as accurate on your heart rate as a heart rate monitor.
  • hyoung3
    hyoung3 Posts: 85 Member
    I've read that your fat burning heart rate zone is somewhere between 60-70% of your maximum heart rate.

    So, I guess that number would vary for each of us.

    Subtracting your age from 220 should roughly give you your maximum heart rate.

    Hope this helps...
  • jhardenbergh
    jhardenbergh Posts: 1,035 Member
    The government standard is take 220 and sub your age to find your max heart rate, which would be 167 bpm for you, if you are trying to lose weight you should shoot for 70% -80% of your max HR. (I think)
    116 - 133 for you. There are other ways to figure out your max heart rate and target zones. This one is the simplest I have found

    The other thing to consider is that usually the equipment in the gym isn't as accurate on your heart rate as a heart rate monitor.

    That sounds right to me, for some reason I had 180 on my mind, my bad
  • This might get long, but hopefully helps.

    Losing weight (and therefore fat from our bodies) require us to burn calories. The critical issue is to exercise LONG ENOUGH to achieve a decent calorie deficit. Here's where the "fat burning" thing can be confusing. At lower intensities of exercise you are using "fat" as a preferred fuel source, and at very high intensities you are using "carbohydrate/glycogen" as the preferred source. But they are never just one or the other, just more so of one than the other depending on the intensity. There are pros and cons to this!

    So....the theory of fat burning is.... lower intensity exercise utilizes fat for fuel more, HOWEVER, at lower intensities you are expending LESS calories per minute (that's the con), BUT you can do it for longer (that's the pro). But the bottom line of losing weight (and hence fat from our bodies) is to EXPEND more calories than we ingest and need.

    The reason the "fat burning zone" phrase took off years ago (and sadly is still thrown around) is because it was meant to entice people to get off the couch and develop that base, instead of going from being sedentary to short high intensity bouts of exercise and giving up because it's too hard (or they get injured or frustrated).

    If you're just starting a workout routine, building some cardio fitness (an endurance base that you can build on) is important. That can only be done by gradually building longer workouts, like starting w/30 min, then adding until you can get to non-stop (at whatever you're doing) for an hour. Once you have that base established you can throw in 1-2 high intensity shorter workouts in the week that use burn the same amount (and possibly more) calories than the longer ones.

    My practical suggestion though on heart rate and exercise is, to use the age predicted max formula as a starting point only (220-age multiplied by % intensity), BUT also use your perceived exertion. The formula isn't very accurate (in fact it can be as much as 20 beats +/- incorrect). If you find once you're going along at your age predicted 75-80% heartrate and it's either causing you to be breathless OR feels like just a warm-up, then the formula is off for you. Instead work to a perceived effort of somewhat hard to hard (but not out of breath) and note what heart rate that gives you and that should be your 75-80%. Just adjust your percentages from there.

    Hope that helps!
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