figuring calories burned.

lostangelntx
lostangelntx Posts: 8
edited November 12 in Fitness and Exercise
I'm walking the bridgewalk in Corpus Christi this Sunday. The walk is 3.42 miles up the Harbor bridge, down the other side, around to the return bridge, up it and back down. How would I figure calories burned on this walk? The bridge is around 17ft high.

Replies

  • lostangelntx
    lostangelntx Posts: 8
    Correction. the total miles walked will be 3.42 miles.
  • thecraftinista
    thecraftinista Posts: 66 Member
    I wear a heart rate monitor for all activities that I participate in so I get a pretty accurate idea of how many calories I am burning.
  • bwogilvie
    bwogilvie Posts: 2,130 Member
    A reasonable estimate for walking is weight (in pounds) divided by 2 times the number of miles. So if you weigh 150 pounds, that would be (150/2) * 3.42, or 256.5 calories. The 17 foot elevation gain doesn't make much difference; a 150-pound person would require 2550 foot-pounds of work to climb that, which is 3.46 kilojoules or 0.83 calories; assuming that you're about 23% efficient in converting food energy to climbing energy (most human activity is 20-25% efficient), that would add an extra 3.6 calories, for 260.1 total.
  • Hitesc
    Hitesc Posts: 86 Member
    Yeh get a heart rate monitor, we won't know how much you burn. Every person is different, depends on your current weight, your lean body mass, the elevation of the walk, your fitness and etc
  • bwogilvie
    bwogilvie Posts: 2,130 Member
    Obviously, if you weigh more or less than the 150 pounds I chose as an example, the calorie expenditure would be proportionally more or less. A 300-pound person would burn about 520 calories; a 100-pound person, about 173.
  • lostangelntx
    lostangelntx Posts: 8
    Thank y'all so much!!
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