Accessing the Kinematical Possibilities at the Knee Joint Replaces Subjective-Objective Outcome Measure

Castielo W, Velonalez TA and Huyame S

Published on: 2023-01-05

Abstract

Can Gibson's affordance theory clarify objective versus subjective outcomes measurement and unify them? An affordance indicates the behavior potential, not the actual occurrence of that behavior, for example, limb movements. As previously mentioned, possible displacement is called a "virtual displacement." A virtual knee displacement is an arbitrary, infinitesimal change compatible with the constraints and applied impressed forces. We found that the "virtual" refers to the displacement intentionally made in any kinematically admissible manner as manifested in the active touch and posture—variations in skin stimulation caused by surfaces are altered together by motor activity variations. At the knee joint, perceptual systems are active sets of organs operating to reach equilibrium through the organic unit—the combined action that the skin and the joints are both projected to the somatosensory area of the cortex, to the same location, and the joint cannot even be imagined to deliver a flat map to the brain.

The objective of this study is to suggest that the assessment process after joint arthroplasty can be viewed in terms of action possibilities provided by the active sets of organs residing that can obtain and utilize information about the tissue environments in the knee proprioceptive system.