Does Age play a role in burning calories?

kiawya
kiawya Posts: 73
edited October 2024 in Fitness and Exercise
My question is if a 25 year old and a 45 year old both work out on the elliptical, for say 30 minutes each. (say they both weigh the same 180lbs)

Is the calorie burn determined totally only by heart rate and weight?

Or does age play a part too?

Replies

  • killagb
    killagb Posts: 3,280 Member
    Age does play a part, you burn less the older you get, as far as I understand it.
  • texasmagz
    texasmagz Posts: 35 Member
    We tend to lose muscle as we age, which causes the older person to burn less calories unless they've been strength training.
  • Azdak
    Azdak Posts: 8,281 Member
    The standard accepted energy-prediction equations do not use age as a factor.

    HRMs use age, not for any physiological reason, but to decrease the standard of error of their estimates. That's an HRM math issue--it has nothing to do with the way the body works.

    I am not saying absolutely whether or not lean body mass plays a role, but it is not used as a factor in any standard calculation that I know of.
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