Inter-ASIS distance


Internal (medial) rotation




Internal joint moments





Inverse dynamics





Inversion


Kinematics


Kinetics


Knee abduction-adduction


Knee flexion-extension


The length of measure between the left anterior
superior iliac spine (ASIS) and the right ASIS.

Movement that rotates the distal segment medially
in relation to the proximal segment in the transverse
plane, or places the anterior surface of a segment
towards the longitudinal axis of the body.

The net result of all the internal forces acting about
the joint which include moments due to muscles,
ligaments, joint friction and structural constraints.
The joint moment is usually calculated around a
joint center.

Analysis to determine the forces and torques
necessary to produce the motion of a mechanical
system, given the topology of how bodies are
connected, the kinematics, the mass properties, and
the initial condition of all degrees of freedom.

A turning inward.

Those parameters that are used in the description of
movement without consideration for the cause of
movement abnormalities. These typically include
parameters such as linear and angular
displacements, velocities and accelerations.

General term given to the forces that cause
movement. Both internal (muscle activity,
ligaments or friction in muscles and joints) and
external (ground or external loads) forces are
included. The moment of force produced by
muscles crossing a joint, the mechanical power
flowing to and from those same muscles, and the
energy changes of the body that result from this
power flow are the most common kinetic
parameters used.

Motion of the long axis of the shank within the
coronal plane as seen by an observer positioned
along the anterior-posterior axis of the thigh.

Motion of the long axis of the shank within the
sagittal plane as seen by an observer positioned
along the medial-lateral axis of the thigh.