Do kinematic models reduce the effects of soft tissue artefacts in skin marker-based motion analysis? An in vivo study of knee kinematics

The Effect of Weak Hip Abductors or External Rotators on Knee Valgus Kinematics in Healthy Subjects: A Systematic Review

“…25,56,57 Despite its superiority, there has been recent evidence regarding limitations in the use of skin markers when using 3D kinematic analysis. 66,67 Geiser et al 57 acknowledged the possibility of measurement error via skin movement or systematic shift in marker position during a fatigue protocol. The significance of this is better appreciated when one considers that differences in ROM between their prefatigue and postfatigue subjects were smaller than the standard deviations in their measurement accuracy.…”

Tibio-femoral joint constraints for bone pose estimation during movement using multi-body optimization

“…Thus, MBO should not be expected to improve the estimate of joint kinematics [5], but to provide an optimal reconstruction of the instantaneous location in space of the entire chain of bones being analyzed. Therefore, a more accurate kinetic analysis is made possible and the reconstruction of the movement of the soft tissues relative to the underlying bone may be attempted.…”

Joint loading asymmetries in knee replacement patients observed both pre- and six months post-operation

“…This constraint on the model was placed because evidence 184 surrounding estimations of secondary motions of the knee (e.g. internal external rotation) 185 from motion capture data show significant errors (>4°), despite optimization techniques 186 (Andersen et al, 2010). Resultant TFJ kinematics and kinetics, along with force plate data 187 from the three trials for each of the activities, were averaged and collated for all participants.…”