Originally Posted by user92626
It cannot be the effect of pronation.To me pronation would be like turning a car's steering wheel. You can do that without changing the wrist angle.
The car wheel is the support. Before my previous post, I tried to pronate the lower arm while not changing the wrist angle from the laid back position, and it was very awkward. The pronation naturally induces the pivoting action of the wrist as LeeD says.