Is it me, or my HRM, or only me pretending?

Only thing I can think is that for running at least that heart rate seems low.

However, for the the heart rates it is recording the burns seem close to accurate. Do you wet the band before you put it on?

It's the sad side effect of getting fit-as you weight less and are in better condition, you aren't going to burn as many calories. Do check that your strap is properly wet and connected with your skin, but those numbers don't sound that off for your weight.

An avg hr of 100 during hard exercise seems low, but to be honest, there are just some people out there (like myself) who just burn less.

My husband can run for 30 minutes and burn over 500 calories, while I am more like 200-230 for a 30 min hard run.

It sucks, but if you do burn less than you thought, at least you know now and can adjust your calories accordingly. It's what has helped me lose weight.

I have two things to say to the OP.

One: some people that are burning mega calories are extremely overweight and therefore it burns at a much higher rate. Some people log that they burn 800+ calories doing Zumba. According BOTH my Fitbit and my HRM, I only burn around 325. But I only weigh 135.5

Two: Most people are full of *kitten* when they say they burned these incredible numbers and are only fooling themselves. They overestimate or rely upon the treadmill only to tell them what they've burned, which is notoriously WRONG.

How much you burn also depends on what you weigh. The more a person weighs the more calories they burn doing the exact same exercise as a much smaller person. People that you see burning 800 calories in an hour are probably much larger than you.

QFT

Don't be discouraged. As others are saying, the bigger you are, the more calories you burn doing EVERYTHING. I burn close to 100 calories brushing my teeth. (I'm kidding of course, just a bit of self-deprecating humor).

this Sounds low, even taking into account all the comments about fitness levels and weight.

is the chest strap well fitted? the monitor bit isn't maybe losing contact with the skin, slipping over your bra, etc?

You usually aren't going to burn a ton of calories during a weight lifting workout. On the other hand, weight lifting will typically burn extra calories over time because your body has a lot of work to do later repairing all of the muscle damage you just created.

If you're scared of pushing your heart rate above 150, try paying more attention to how you feel when you're at that point. Is your body genuinely telling you that it needs to back off, or is it just the number freaking you out?

Even if the heart rate charts say you shouldn't go above 150 or so, if you get up there and you feel fine, chances are very very high that you ARE fine. The charts just give the predicted numbers for an average person of a given age. Some people have hearts that naturally tend to run much more slowly, while other people have hearts that can go way faster than the formula would predict. That's why it's so important to pay attention to how you actually feel during a workout and treat the standard numbers as a starting point rather than letting them be the boss of you.

I have the Polar FT4 as well and love it! I do notice when my battery is low my HR is all over the place and so are my calories.. thats a good sign to change and check the battery!

Well make sure it's set up correctly with your age and weight.

Weight training doesn't burn that much calories during training. For me resistance is about 125 calories for 20-30mins and I am big and lift heavy.

There is also no point in doing workouts that long.You're just eating away at your muscles, if you don't consume enough calories, and I doubt you do a workout like this infrequently. You probably do it often.

I currently weigh about 297, if I do low intensity cardio, i burn about 500 calories in a hour... You probably weigh less than half of what I do. So your calorie burn for low intensity cardio might be around 200-250 calories.

This is about 250 + 250 = 500 calories. As I said i doubt you lift as heavy as i do, so it would be less than what i burn.

Well, firstly, she didn't really ask how long her workouts should be, so that falls into the 'unsolicited advice' category.

Secondly, while we're impressed by how much you lift, how is that and a comment about low intensity cardio relevant to a query that includes a really low average burn for *running*? Running is rarely 'low intensity', in my experience. Sure, your logic might hold for the gym activity, but it doesn't make sense of the running data.


And It's the running burn that has me puzzled. I have very light, fit friends, who on average burn at least 600 cals an hour for running. That burn simply doesn't look right. OP - what sort of speed are you running? My average heart rate has been consistently in the upper 140s right the way through my running experience, and most of my female friends seem to average similar or higher. 120 is more like what I'd expect from a moderate walk, or a light cycle.

Do you have a natural abnormally low heart rate?

No. I am at the risk group for hight blood pressure (145/90) Not taking for it any medications yet. But do taking medications for high cholesterol. Maybe that?

What are you taking for your cholesterol? Are you taking any other medications besides your cholesterol medication? Depending on what you are taking, there can be a heart rate effect, especially if your doctor was trying a combination therapy to lower your high resting heart rate at the same time.

Anyone consider that she just has a genetically lower max heart rate? If you're huffing around 160 and slow down to rest, then yes, your HR will lower itself and cause a lower average HR. For the HRs you listed during your run, it sounds like a pretty accurate caloric burn.