[Greg]

I'd guess it's more that the simple mechanical energy of lifting your leg because you're also working against the opposing muscles, but adding in those weights probably skews the percentages toward the mechanics.

Let's see... wild guessing that a leg is 20% of the total body weight and swagging that Coco weighs in at maybe 120 lbs, each leg would weigh about 24 lbs. Another wild guess that the center of gravity of leg lifts a foot off the ground and the ankle (with the weight) lifts two feet, we come up with 24x1 + 5x2 = 34 ft-lbs of energy per leg lift.

1 foot-pound = 0.324048267 calories, so we get 11 calories. Now for the bad news: Dietary calories are kilocalories of energy, so the real answer is 0.011 dietary calories.

Now, assuming there is 1 tablespoon of sugar in a piece of fudge (another wild guess), that candy contains 3*18 = 54 dietary calories.

So the answer is 4,901 leg lifts per piece of fudge, plus or minus a few thousand, assuming very aggressive leg lifts and a rather small piece of fudge.