Given a wheelbarrow that has two wheels side by side (as opposed the normal "unicycle" ones), with a wraparound handle that is parallel with the axle rather than the normal separate handles that are each perpendicular to the axle...
Is it better to pull or push a wheelbarrow, assuming that it is loaded so as much of the weight is over the axle, with a little more on the side closer to the handle. By "pull" I mean walking forwards, towing the barrow behind me with hands level with buttocks, not facing the barrow and walking backwards!