[ristau5741]

consider your stride and the puppies stride while running, using the number of strides the pup must have for every one of yours.

so if you've got a 3 foot stide, pup has a 1 foot stride, pup is expending 3 times more energy then you use just to keep up, using simple math, that is.

yes I know body mass and many other vairables come into play here.