Using Skelegons to create a series of bones to bend an object, then add a controller. There’s a trick with selecting correct properties window for objects you want to control with bones that had me confused for a while.
Simple technique in Lightwave3D for using extra bones to do simple muscle bone or joint compensation effects. This also demonstrates the effect of offsetting the parent bones tip from the child to help hold certain areas such as the elbow. Its an older video but still relevant today.