The head is quite large. The pelvic girdle is very small. That's where most of the muscles that would be used for locomotion are located,
Quotes about locomotion (7 Quotes)
If all feeling for grace and beauty were not extinguished in the mass of mankind at the actual moment, such a method of locomotion as cycling could never have found acceptance no man or woman with the slightest aesthetic sense could assume the ludic.
For all the social changes in China can be traced to their early beginnings in the days when the new tools or vehicles of commerce and locomotion first brought the Chinese people into unavoidable contact with the strange ways and novel goods of the Western peoples.
Maybe it could extend to stroke or other pathological patients who have an increased incidence of falls and an inability to control locomotion.
There is no way you could fit enough muscle into its body for that kind of locomotion. You wouldn't have enough room left over for all the other body parts.
It is a simple model, although realistic enough to capture the principles of locomotion. First, you have a stick figure model, with a bunch of segments joined by joints. Then you assign weights to those segments and compute the physics of the posture. When the foot is joined to the ground, you can compute the forces.
The similarities among animals that are on the surface very different are no coincidence. In fact, animal locomotion is no different than other flows, animate and inanimate they all develop in space and in time such that they optimize the flow of material.