S.L.S. (Short Leg Syndrome)

Just how short are my legs?

Having just returned home on a cross-country flight, I'm reminded that my legs get really sore in the upper thighs after flying for a few hours.

This is not for lack of leg room, as one may think.

Quite the opposite, actually.

I think my legs get sore because they are too short, and don't reach the floor when I'm sitting properly in the chair. Because of this, there's no support, and my legs just kind of dangle for hours on end.

Does anyone else have this problem?
(Dick certainly doesn't, so I can't ask him to relate)