No. Weight x distance from center of mass is the real metric of burden.

Carrying your lunch on a 10-foot pole, keeping it off the ground at all times, versus slipping it into a fanny pack - or eating it and carrying it in your very center of mass.

I noticed while ultralight hiking (full kit without food, fuel, and water under 9 lbs, for multi-day excursions) that how close your backpack was to your back mattered. Unfortunately, if it was tight to your back it overheated you, so a standoff of an inch or so was essential. I considered dividing it front and back, so each was about half as "thick" (far from my body), but there isn't a lot you can carry in front of you without seriously impeding movement.

Anyway: force times distance equals work.