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Under stress, is my HRM accurate when I exercise?



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UNIDENT
Posts: 33,498
1/11/13 10:33 P

I'm sorry you're going through a stressful time, that always sucks. :(

Since it's just this week, know that you will not have made any significant fitness changes in one week that will change how much any activity burns for you. I would suggest using last week's figures, which will be more accurate, and relying on the HRM again once the stress source has (hopefully!) been resolved.



SP_COACH_NANCY
SparkPoints: (158,833)
Fitness Minutes: (112,042)
Posts: 46,222
1/10/13 6:16 P

Hi JKW1957,

A heart rate monitor uses an algorithm based on your heart rate to calculate calories expended, however, just know that even a HRM's reading is just an estimate, although a much more accurate estimate than an online calorie calculator.

Calories expended is based on the amount of oxygen the body consumes in relation to large muscle activation which therefore causes a rise in one's heart rate.

I would not get too concerned about the calories burn being slightly higher. Unfortunately anything that calculates calories burned outside a formal laboratory with lots of fancy equipment gives us an estimate.

I hope this helps!

Coach Nancy



JKW1957
Posts: 170
1/10/13 5:41 P

I usually do 50 minutes on my ellipitical machine. My resting HR is around 60 bpm. Normally, I have to really work hard to get my HR in the 130s when I am exercising. This week I have been going through an emotional crisis. I have tried to keep on my regular exercise routine because I thought the release of endorphins might help fight feeling of depression and despair. When I am exercising and start thinking about my situation my heart rate is going up into the 130s with moderate exertion. When I increased to high exertion my heart rate went up to the high 140s. I quit early today because I was concerned about my HR. My question is my HRM is telling me I am burning alot more calories because of the increased HR but, I don't know if I really am since stress is causing it and not actual exercising of my muscles.



 
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