3D character artist Alex Lashko presented a handy rig that might help you understand the human body better. The model's colorful muscles, set up in Blender, move smoothly and realistically, which can be a great reference for your character art or anatomy studies.
Moreover, the artist added a "muscle shrink" function, which can be used for different body types. The rig is still in progress, but Lashko promises to release it to the public soon.
You can find earlier versions of the project on the artist's X/Twitter.
