Skip to main content

Research Repository

Advanced Search

The ankle joint: In contrast to passive kinematics, active kinematics are not primarily determined by morphological features

Wolf, Peter; Moor, Roman; Lundberg, Arne; Nester, Christopher; Arndt, Anton; Graf, Eveline

The ankle joint: In contrast to passive kinematics, active kinematics are not primarily determined by morphological features Thumbnail


Authors

Peter Wolf

Roman Moor

Arne Lundberg

Anton Arndt

Eveline Graf



Abstract

Knowledge about the orientation of the ankle joint axis is limited to studies of tarsal morphology and of quasistatic movements. The aim of our study was therefore to determine the axis during walking. Intracortical bone pins were used to monitor the kinematics of the talus and tibia of five healthy volunteers. The finite helical axis was determined for moving windows of 10\% stance phase and its orientation reported if the rotation about the axis was more than 2°. A representative axis for ankle dorsi- and plantarflexion was also estimated based on tarsal morphology. As reported by literature, the morphology-based axes were inclined more medially upwards for dorsiflexion than for plantarflexion. However, when a mean of the finite helical axis orientations was calculated for each walking trial for dorsiflexion (stance phase 15-25\%) and for plantarflexion (stance phase 85-95\%), the inclination was less medially upwards in dorsiflexion than in plantarflexion in four out of five participants. Thus, it appears that the inclination of the ankle joint axis for dynamic loading situations cannot be estimated from either morphology or quasi-static experiments. Future studies assessing muscle activity, ligament behaviour and articulating surfaces may help to identify the determining factors for the orientation of the ankle joint axis.

Citation

Wolf, P., Moor, R., Lundberg, A., Nester, C., Arndt, A., & Graf, E. (2022). The ankle joint: In contrast to passive kinematics, active kinematics are not primarily determined by morphological features. https://doi.org/10.21203/rs.3.rs-1595514/v1

Journal Article Type Article
Acceptance Date May 6, 2022
Publication Date 2022-02
Publicly Available Date May 30, 2023
Journal ResearchSquare
DOI https://doi.org/10.21203/rs.3.rs-1595514/v1
Publisher URL https://www.researchsquare.com/article/rs-1595514/v1

Files





You might also like



Downloadable Citations