That was my first idea as well, but that is why you should be able to "burn off" the cost.

There are skinny guys that cannot do a single pull-up, and run/jog a 5k (speed not that important).

There are guys with an extra bodyfat percentage that beat me easily in a 5k while dragging a backpack along.

If you have more muscle you probably do better than both of them 😉💪