Forerunner 235 Kcals from run low??

I have not experienced this.

First. The TTC bases kcal burn on MET, not HR so it will not give a value equal to any other watch (e.g. Garmin) using HR as Cal burn calculator.

Second. Are your Hr zones correct?
Press running man, choose run, press down (menu) , go down to my stats and select. Go down to user profile, and select, go to heart rate zones and select, go down to zones and select...now input hr zones.

Third. Same goes for weight, height and age.


Hope that helps.

I have not experienced this.

First. The TTC bases kcal burn on MET, not HR so it will not give a value equal to any other watch (e.g. Garmin) using HR as Cal burn calculator.

Second. Are your Hr zones correct?
Press running man, choose run, press down (menu) , go down to my stats and select. Go down to user profile, and select, go to heart rate zones and select, go down to zones and select...now input hr zones.

Third. Same goes for weight, height and age.


Hope that helps.

Out of interest, should RHR be blank assuming a custom input hasn't been made?

I have not experienced this.

First. The TTC bases kcal burn on MET, not HR so it will not give a value equal to any other watch (e.g. Garmin) using HR as Cal burn calculator.

Second. Are your Hr zones correct?
Press running man, choose run, press down (menu) , go down to my stats and select. Go down to user profile, and select, go to heart rate zones and select, go down to zones and select...now input hr zones.

Third. Same goes for weight, height and age.


Hope that helps.

Thanks or the information mate - I went into my user profile and Max HR was set to 185 i changed it to 187 (220 - Age), chose RHR as "use average". Zones are set up on "based on" as %Max HR. Z5 = 91-102% Z4 = 81-91% Z3 =71-81% Z2 = 61-71% Z1 = 51-61% - Should i change these to numeric hr specific values or are they ok like this as percentages?

I have my weight height and age set-up.

I have not experienced this.

First. The TTC bases kcal burn on MET, not HR so it will not give a value equal to any other watch (e.g. Garmin) using HR as Cal burn calculator.

Second. Are your Hr zones correct?
Press running man, choose run, press down (menu) , go down to my stats and select. Go down to user profile, and select, go to heart rate zones and select, go down to zones and select...now input hr zones.

Third. Same goes for weight, height and age.


Hope that helps.

Thanks for the information mate. I checked the HR zones and RHR was inputted i just used the average from the watch data and the zones themselves were set Z1=51-61% Z2=61-71% Z3=71-81% Z4=81-91% Z5=91-100%. I checked GC and it gave me the numerical values and were correct for m age so i synced it with the watch and is now reading the same values as GC. Hopefully this will give me a more accurate reading.

Weight, height and age are all set up already - thanks mate

I don't think it is left blank or effectively assumes a value of zero

Out of interest, should RHR be blank assuming a custom input hasn't been made?

I thought the watch would simply use whatever “average” RHR for your age is, as determined by some formula Garmin has adopted, in the same way (220-YourAge) is used to set the default value for your MaxHR.

As far as I know, If wearing the watch whilst in bed asleep, it'll monitor and give you a value for resting heart rate, then it'll calculate averages and display on Garmin Connect. Mine does this:)
And for what it's worth I get lower calorie burns from running when compared with Strava or other running apps. I tend to trust Garmin more as I believe it takes away what calories you would burn without exercise (BMR) when exercising as that is accounted for anyway (in resting calories) and takes into account heart rate, age, height and weight.

I know it's a wee bit disheartening but if you've been eating back exercise calories, I feel it gives more confidence to eat back to 100%.

Hi.
Short answers:
1. Go into the user profile and use the avg RHR (if you have had 24/7 Hr tracking a couple of days on), do not use blank.

2. Do not use 220 -age, if you are the least bit fit...this calculus is faulty. Use Karvonen ( http://www.briancalkins.com/HeartRate.htm ).

3. I do not know if Garmin subtracts BMR calories, but I suspect they do. Also as Garmin uses Firstbeat tech the Cal is not only based on avg hr but also on Hr variation frequency. The TT C does not subtract BMR (eg my BMR is 72kcal/h so in a 3h pace run this will give 210 more burned cal. Also as TT C uses MET (or avg Hr if you have frestyle mode on in Multisport), the numbers will not be the same as in 235. If you would have a Polar in addittion the burned cal would be different there also as they have again a own algorithm.

4. There is a bug affecting most 235 & 230 watches. You will have to check if the watch updates to GCM/GC HR values .
In my case I have to manually inser hr zones to watch as it does not due to bug sync this data.
Always check hr zones from watch....do not trust gc/gcm

Thanks or all the information Anton. Yeah i checked m watch aswell as GC and the HR zones are the same in both so they sync'd fine. I checked the link you sent on for the max HR and it gave me 188bpm - had it set to 187bpm so wasnt too ar off luckily.
I ran the same run/route today (8k) as yesterday with the HR zones inputted and i burned of 543kcal vs yesterdays of 500kcal. So has gone up abit more - even though no too runs are ever the same the distance was and pace was nearly the same - bit faster today.
So Garmins algorithm for calculate calories would be a more realistic/closer value to what calories you would burn off??

No prob. I would however suggest to go and test your LTH if you are really intersted. Eg. My mathemathical LT is 139 but through test I know it is 158. Also my hr zones differ quire alot from mathematical values. But I am quite fit...so there's that.

Me, personally I would trust the 235 more.

Especially if you have the TT C runner version. As MET is only a good calorie calculator on absolute flat surfaces. It does not take up- or downhills into consideration.

Fact is, at the end of the day no machine can give a 100% exact calorie burn value as issues like scratching your chin several times during the day can give a throw of 50kcal. Personally I think of it in a ball park of +/- 100kcal thinking gives a good "guesstimate".