[BLKNSLVR]

The ankle flex when the right foot lands makes me wince every single time. I wonder how much that's to do with the direction of gravity, the angle of their body looking not quite horizontal (and therefore 'weirding' the angle that feet hit the ground), and how much is to do with the individual's physiology.

[funnym0nk3y]

You could build it with a slight angle. Or gradually steeper like a high speed race track.

[nickff]

The ‘bowls’/balls used for motorcycle stunt riding might be good examples for this (and could be fun).

[sandworm101]

In actual lunar gravity the forces should balance out. At a particular speed, tied to the wall angle, the forces should align with the floor to let the foot land as if running on a horizontal surface. Imaging a motorcycle in a turn. Then tilt the road to match the bike's lean angle. The tire/foot then falls flat against the road.

[s1artibartfast]

due to the angles, it would be like running in a circle on earth. It is mostly a question of what the equivalent earth track diameter is. It can be quite painful and damaging to run in small circles.