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Started By
Message
Heart Rate Monitors: How Accurate Are They?
Posted on 3/26/15 at 9:26 am
Posted on 3/26/15 at 9:26 am
I bought a heart rate monitor yesterday so that I can get an accurate reading on how many calories I burn while lifting weights, since you can't get a really accurate estimate because of different intensities, break lengths, and amount of weight being lifted unless you monitor your heart rate.
So I synced it to my Nike+ GPS watch yesterday, and went for a 3 mile jog to test it out. I averaged a little over 11 minutes per mile. The duration of the jog was 34 minutes. My average heart rate was 170. And my watch, being connected to my heart rate monitor, said I burned 590 calories. I was blown away by this number. Before I had the heart rate monitor, the same jog, at the same pace recorded 393 calories burned, which was an estimate based on my weight and sex. Could I accually be burning what the heart rate monitor is indicating? Or is that inaccurate?
TL;DR: heart rate monitor says I'm burning way more calories than I assumed.
So I synced it to my Nike+ GPS watch yesterday, and went for a 3 mile jog to test it out. I averaged a little over 11 minutes per mile. The duration of the jog was 34 minutes. My average heart rate was 170. And my watch, being connected to my heart rate monitor, said I burned 590 calories. I was blown away by this number. Before I had the heart rate monitor, the same jog, at the same pace recorded 393 calories burned, which was an estimate based on my weight and sex. Could I accually be burning what the heart rate monitor is indicating? Or is that inaccurate?
TL;DR: heart rate monitor says I'm burning way more calories than I assumed.
This post was edited on 3/26/15 at 9:35 am
8
Posted on 3/26/15 at 9:27 am to Homey the Clown
about 1 in 10 I would say
This post was edited on 3/26/15 at 9:28 am
Posted on 3/26/15 at 9:27 am to Homey the Clown
What is your height and weight and does your monitor take them into consideration?
Posted on 3/26/15 at 9:29 am to Homey the Clown
Real answer - depends on if you can sync them with your iphone 6.
Posted on 3/26/15 at 9:30 am to Homey the Clown
those numbers seem way off. 170 is pretty high for an average for a jog at an 11 minute pace unless you are morbidly obese
Posted on 3/26/15 at 9:30 am to Homey the Clown
quote:
went for a 3 mile jog to test it out. I averaged a little over 11 minutes per mile.
subtle brag
Posted on 3/26/15 at 9:31 am to Tiger Ryno
Yeah 170 is high for an average. You sure it wasn't your max heart rate?
Posted on 3/26/15 at 9:31 am to Tiger Ryno
quote:
170 is pretty high for an average for a jog
This is very close to when I run on a treadmill and use the finger clip. Also about the same as when I go hard on the elliptical.
Posted on 3/26/15 at 9:32 am to DosManos
I maxed out at 181 for the jog.
Posted on 3/26/15 at 9:34 am to Homey the Clown
I use a Polar HR monitor. I check it all the time and its always dead on
Posted on 3/26/15 at 9:34 am to DosManos
quote:
What is your height and weight and does your monitor take them into consideration?
5' 7" 170
My height, weight, age, and sex are all plugged into the watch, which is synced to the HRM.
Posted on 3/26/15 at 9:34 am to Homey the Clown
I don't see how your average HR could be that high if you are "jogging" at an 11 minute pace. something is rotten in denmark.
Posted on 3/26/15 at 9:35 am to Tiger Ryno
quote:
170 is pretty high for an average for a jog at an 11 minute pace unless you are morbidly obese
I don't know that this assumption can be made. HR is so variable from person to person -- there's no "normal range" ... mine at that pace is higher than 170 and I'm not even close to obese. My max is HIGH.
I have a Garmin ... really like it.
This post was edited on 3/26/15 at 9:38 am
Posted on 3/26/15 at 9:35 am to bamafan1001
quote:
Polar HR monitor
This is what I bought.
Posted on 3/26/15 at 9:38 am to tiger91
When I say a "jog", its really the best pace I can get right now since I've been inactive since about october, when I was averaging 5 miles at 9:30 a mile per run, but I didn't want to get into the whole "11 minute mile isn't a run" debate.
Posted on 3/26/15 at 9:39 am to Homey the Clown
Interesting that you max out at 181 and your average is 170. My range is so much broader, but my physical dimensions are not similar to yours.
OP- are you a hummingbird?
OP- are you a hummingbird?
Posted on 3/26/15 at 9:39 am to Homey the Clown
The heart rate monitor itself was likely right on unless you were wearing it incorrectly. However, calorie counts are completely meaningless unless you're using a power meter to measure the amount of work you're doing directly rather than indirectly through heart rate.
Posted on 3/26/15 at 9:41 am to usc6158
quote:
However, calorie counts are completely meaningless unless you're using a power meter to measure the amount of work you're doing directly rather than indirectly through heart rate.
But is it safe to assume that the monitor is either over-estimating or under-estimating calories based only on heart rate?
Posted on 3/26/15 at 9:41 am to Homey the Clown
Despite all the assumptions that modern medicine makes, we still have no way of knowing whether or not a heart actually beats let alone at one pace. You're buying parlor tricks and cheap magic.
Posted on 3/26/15 at 9:43 am to usc6158
So how do I get an accurate read on calories burned? I've researched online, and from what I've read, it said that the amount of calories a HRM says you burn during a workout is accurate within about 12%. Is that complwtely false?
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