why such a variation in HRM caloric counts?

mom24littleones
mom24littleones Posts: 58
edited December 2024 in Fitness and Exercise
So, my friend and I are about the same weight (5-8 lbs. difference) and she is 6 1/2 years older than me. We both take the same class at Lifetime and put in the same effort (basically every ounce of effort we have!!! Sweating bullets the whole class!), and yet our HRM show a variation of 200 calories in the burn...she burned almost 700 and I burned 570.

I know all HRM are going to vary a little, but that seemed really significantly different! Could the slight weight and age difference make that much of a difference in our burn? She did say her heart rate max was at 181 where as mine only got to 159...

Can anyone tell me if that kind of variation is typical or if the fact that I am younger and have more running endurance is the reason I burn less...

I appreciate any help!!

Replies

  • rblakeman
    rblakeman Posts: 25
    I think the answer is that her heart rate was higher than yours, hence she burned more (if in fact HR indicates how many calories are burned). I find that once I get my heart rate up, it is easier to keep it in my goal range (for me, around 185). Maybe due a few minutes of jumping jacks or something before you start the class to get the heart rate up and see if that helps.
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