Well, after putting it off forever (due mostly to laziness, and being chicken) I finally got my bike up in the truck, without help.
Now I don't have a HUGE truck, but it is a Toyota 4x4 with 31" tires on it, and a relatively short ramp, making a steep angle. I've pushed the bike in there before sans engine so really it probably wouldn't take more than a year or two in the gym to be able to push the whole thing in there.
Well, a couple of years ago, I loaded it myself by starting it, putting it in first and walking it up the ramp. That backfired (tire spun the ramp out from under me) and I haven't done it since, until today; this time I used the safety hooks on the ramp.
Easy as pie. Now I feel REALLY stupid for begging for help for so long.
So anyway, I can't remember if there was a post here or on another forum, but that's the way to do it the easiest and it works! That bike's got an engine for a REASON!
Oh, BTW, I have one of those wide ATV ramps. Kind of expensive but worth it, for sure. It is aluminum, folds in half in the middle, and has rungs like a ladder. It's about as wide as my tailgate almost, unfolded.
Now I think I could probably just wheel the bike up like any normal person if the rungs were closer together--but I have to go slow, because it's really easy to put a foot through the center of them (ouch!) and then I can't get a running start. I may get a chunk of expanded steel to lay over the side I walk on, so that I can get a running start and just push her right in the truck.
But, starting the engine takes less energy.