herrozerro
First Post
First link: All things being equal -- body mass, flexibility, proportionality and stride rate -- then taller people can run faster than shorter people.
So as long as you do not calculate the speed out of the attributes, which according to those links have a big impact on running speed, having people twice as large also being faster is correct.
I posted both links to show unbias. Here is a quote from the second.
The best runners are small and light, with slim legs. “If you have large legs, you have to move a big load,” Dr. Secher said. “The smaller you are, the better you are.”
There seem to be conflicting opinions.