Do the joints act like constant velocity joints when exerting force?
Forgive the maybe outlandish question, I am not formally educated in anatomy.
I practice Tai Chi and it's helpful to use imagery to illustrate how certain ideas, like relaxation and coordination, contribute to holistic expression of force from the ground up. Basically it can be helpful to illustrate things in mechanical terms.
Some teachers like to use the image of gears to describe coordinated movement in the body, but of course the joints etc are not like 2 dimensional wheels, e.g. the humerus adducts, abducts etc but it also rotates internally and externally, and in coordination with the rotation of the forearm, this results in force coupling, mobility and stability.
A CV joint, if I understand correctly, allows force to be transmitted alon ban axis that is nevertheless capable of simultaneous articulation, unlike a 2D rigid gear system.
So, at least in the arms, it seems that the joints, if working in coordination with each other, act similarly to CV joints?