Write down the definitions for the inter-segment force, the joint force, the muscle force, the bone-on-bone force and the ligament force.
The inter-segment force is the resultant of all the forces crossing the joint
between two segments.
The joint force is the force acting between two segments at the joint.
The muscle force is the force produced by the muscles crossing the joint.
The bone-on-bone force is the force acting between the bones that form a joint.
The ligament force is the force carried by ligaments, joint capsules and muscles that are not contracting.