Strava Calories?
Graeme Jones
Posts: 361
Hi All.
Bit of advice I generally like to know what calories I have burnt during my rides, normally strava does this but on this last ride it decided not too anyone have any ideas as to why? My settings have my weight inputted so don't understand.
Bit of advice I generally like to know what calories I have burnt during my rides, normally strava does this but on this last ride it decided not too anyone have any ideas as to why? My settings have my weight inputted so don't understand.
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Maybe a random glitch. ps: strava calories isn't particularly accurate0
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Sure its not but if its there it should be working. It may be a glitch as the elevation is on the front page but when you go in to ride it says calculating?0
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As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
To give you an example - I did a recon ride of the Etape Caledonia route and forgot my HRM strap so I only had my Garmin 500. It recorded 4391 cals consumed and I wasn't pushing it at all. I then did the run on the day with HRM and blasted round the route. Cals consumed...2660.
If you're using Strava on your phone and you want accurate cals consumed get a separate HRM.0 -
Graeme Jones wrote:Sure its not but if its there it should be working. It may be a glitch as the elevation is on the front page but when you go in to ride it says calculating?
when you log back in chances are it will be there, seems to take a while to calculate but like others on here have said they aren't the most reliable.0 -
I use Strava and endomondo together and while the distance and speed are pretty much identical the calories are way out. Strava is sometimes almost half of what endomondo says.2019 Ribble CGR SL
2015 Specialized Roubaix Sport sl4
2014 Specialized Allez Sport0 -
FYI
I did a ride on Sunday and Garmin Connect states 2278 cals where as Strava states 3219 cals so Strava is 40% more - for the same ride / training file (Edge 800 with HRM)Simon0 -
Power meters that tell you he kj of work done are the only accurate measure really, and even then you need to know your personal calorie burning rate from a proper test. I know from 2 years of my own data that Garmin, Strava and everything else suggesting calories are simply as good. Using a random number generator most of the time. I really wouldn't bother...Your Past is Not Your Potential...0
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He's a comparison for you. On my club 10 last night
Garmin Connect (via Edge 800) - 374 C
Strava (using Edge) - 399 Kj
Powertap - 383 Kj
PS Info on Strava...Energy Output measures the amount of work you've done during a ride, expressed in kilojoules (kJ). It is a factor of how much you're pedaling, how fast you're pedaling and how much force you're exerting on the pedals (measured in W). Power output is most accurately taken from a power meter, but if you don't have a power meter we give a rough approximation through our power estimator.0 -
thegreatdivide wrote:As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
To give you an example - I did a recon ride of the Etape Caledonia route and forgot my HRM strap so I only had my Garmin 500. It recorded 4391 cals consumed and I wasn't pushing it at all. I then did the run on the day with HRM and blasted round the route. Cals consumed...2660.
If you're using Strava on your phone and you want accurate cals consumed get a separate HRM.
I agree with this comment. If you don't use a HRM then you can pretty much halve the calories that it says you have consumed.
I don't know why it's so far off the mark but a HRM would give you a more precise reading.0 -
Hi everyobdy, I've been discovering Strava since few days and indeed, this tool is kind of fantastic.
I've actually the same "issue" that you, the calories burned are over-rated on Strava (1700 on my GPS, 4000 on Strava).
For the calories I don't really care, but for the watts, could I know what is the margin of error on Strava?
Apparently someone has got a power-meter, it could be pretty interresting to know what Strava says and what you actually do on a precise segment/climb.
Thanks.
http://www.bikebasque.co.uk0 -
+/- 100%0
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ShutUpLegs wrote:+/- 100%
Hahaha0 -
how accurate is calories burned when using a HRM ?thegreatdivide wrote:As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
To give you an example - I did a recon ride of the Etape Caledonia route and forgot my HRM strap so I only had my Garmin 500. It recorded 4391 cals consumed and I wasn't pushing it at all. I then did the run on the day with HRM and blasted round the route. Cals consumed...2660.
If you're using Strava on your phone and you want accurate cals consumed get a separate HRM.Lapierre Aircode 300
Merida0 -
gubber12345 wrote:how accurate is calories burned when using a HRM ?
As good as the algorithm that the manufacturer has built into the HRM.
Only real way is a powermeter0 -
OK, that was a bit too short. Yes, it is as only as good as the algorithm and your HR can be affected by certain things. However, ultimately, unless you do have a powermeter to read effort and therefore translate it, then you can use it as your datum point to measure your effort against whatever you baseline yourself at.
For instance, many people say that the power readings you get on turbos like Tacx are not accurate - this is true (and it is out compared to my PT); but if you know it is out and you train/test yourself using that same datum point then you have ability to measure yourself against it and therefore know if you are improving etc.0 -
Don't quite understand why this calorie thing is important...0
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I am somewhat baffled by this and quite a few related discussions I have seen.brettjmcc wrote:As good as the algorithm that the manufacturer has built into the HRM.
Only real way is a powermeter
In terms of the actual amount of work done, that is a fairly simple calculation. It is a combination of the energy required to raise the bike and rider by a particular height (mass x height x g) plus the effort required to overcome air resistance (not quite such a simple calculation but still relatively simple to estimate) plus fairly insignificant frictional losses.
I know a lot more about physics than I do about physiology so I don't know how well the number of calories burnt correlates with the actual amount of work done but the powermeter doesn't tell you this anyway.
What benefit does a powermeter give over a simple calculation?0 -
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lotus49 wrote:What benefit does a powermeter give over a simple calculation?
Time, as I am too busy installing my flux capacitor in my car.
Sorry, couldn't resist...
I should have stated, it is what I have read, as I am merely a layman on the subject. With 2 kids, a desire to get out on the bike, a car project to finish off as well as work, it just makes it easier for me. I spent £399 on a 2nd hand PT built into a wheel. I only use it for training on the TT bike and when I am racing though. The rest of the time I just ride (admittedly very slowly at the moment)0 -
thegreatdivide wrote:As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
For me the Garmin calorie guessing algorithms are sometimes ok-ish without using an HRM, but vastly underestimate with an HRM (based on the kJ figure from similar rides done with a power meter which provides the most reliable estimate of calories).
Which just goes to show that the calorie guessing algorithms can be massively out in either direction for a given individual so they're not worth much at all.More problems but still living....0 -
I use calories counting to know how much I can eat each day and stay the percent body fat that I have come to prefer (6%).Don't quite understand why this calorie thing is important...0 -
As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
Hmmm, With HRM 707 Without HRM 719
Same time of day, similar conditions, similar speed.Advocate of disc brakes.0 -
Rise from your grave…
Strava and Garmin have gone through a lot of upgrades since 2012 and I use a power meter now ;-)0 -
That's because the Strava calorie estimation doesn't take any account of your HR so doesn't care whether you record it or not - it uses Strava's built in power estimation model.As above. Strava calories, like Garmin calories without a heart rate monitor are WAY out!
Hmmm, With HRM 707 Without HRM 719
Same time of day, similar conditions, similar speed.
Check the Garmin Connect file for the same rides, it *should* be different.0 -
*searches internet...*Advocate of disc brakes.0
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With - 886
Without - 1479
Point taken.Advocate of disc brakes.0 -
something I posted on a different but very similar thread:here are two of my rides first with heart rate monitor second without:
Distance: 52.60 mi
Time: 3:06:42
Avg Pace: 3:33 min/mi
Avg Speed: 16.9 mph
Elevation Gain: 573 m
Calories: 881 C
Distance: 51.52 mi
Time: 3:01:11
Avg Pace: 3:31 min/mi
Avg Speed: 17.1 mph
Elevation Gain: 580 m
Calories: 2,570 Cwww.conjunctivitis.com - a site for sore eyes0 -
Echos my post too.Advocate of disc brakes.0
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Mine generally follows the same trend, although they are a little closer than that. I find that Strava and Garmin (HR) only really match up on flat-ish steady rides.0
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the thing i don't get is why it is so different for Garmin.
you would have thought the main part of their calculation is the same and that it just assumes heart rate where it doesn't have it? but I'd have to be pushing at my Max heart rate for the whole ride to get anywhere near to the calories it says if i'm not wearing the heart rate monitor.
I have found a use for it though, it is a useful random number generator should you ever need one!www.conjunctivitis.com - a site for sore eyes0
