10 Calories A Step? Surly Not?

14 comments
  1. per trede is ongeveer 0.17 cal. dus voor de 18 treden = 3.06 cal … je moet al een bol vet zijn om aan de 180 te komen.

  2. Well if you aplly basic physics to it…

    Given variables:

    > 18 steps=180 cal

    Conversion:

    > 1 step = 18 cal

    > 1 cal = 4,184 J

    > 1 step = 75,312 J

    Staircase standards:

    >”With regard to the standard height of a staircase riser, the measurement is often #between 6-1/4 and 7-7/8 inches#”…

    > 1 inch = 0,0254 m

    > 6-1/4 inches = 0,15875 m

    > 7-7/8 inches = 0,200025 m

    > average step height in meters: 0,1793875 m

    Apply the formula for potential energy:

    > U [J]=mgh [kg×m^(2)/s^(2)] <=> m=U/g×h

    > m = [75,312 (J per step)] / [9.81 m/s^(2) × 0,1793875 (m per step)]

    > m = 42,795982 kg

    …I’d say its pretty possible. For reference, if a 100 kg person would take the stairs to go just 1 meter higher than his starting point it would cost him 981 Joules in energy (=234 cal). To burn of 180 cal, he would have to climb to a height of 0,767706422 meters in reference from where he started.

  3. The numbers you can find on the internet for climbing a flight of stairs are 1,50 to 2 kcal. So let’s assume 1,80 for easy calculations. 1,80 kcal = 1800 cal, not 180. So it’s wrong for starters, and there’s an extra pedantry bonus for using calories, knowing full well that outside the lab, people say cal when they mean kcal.

    I’m taking the elevator, 180 cal isn’t worth is, I’d need to go up 5 flights of stairs to burn off almost one kcal, that just doesn’t make any sense. Because it’s not true. Even 1,80 kcal for one flight is pretty disappointing, I guess.

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