Comparison of instantaneous knee kinematics during walking and running
Deutscher übersetzter Titel: | Vergleich der momentanen Kniekinematik beim Gehen und Laufen |
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Autor: | Wang, Wenjin; Tsai, Tsung-Yuan; Zhang, Cui; Lin, Jinpeng; Dai, Wei; Zhang, Ming; Potthast, Wolfgang; Liu, Yu; Wang, Shaobai |
Erschienen in: | Gait & posture |
Veröffentlicht: | 97 (2022), S. 8-12, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0966-6362, 1879-2219 |
DOI: | 10.1016/j.gaitpost.2022.07.008 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU202311010584 |
Quelle: | BISp |
Abstract des Autors
Background: Accurate measurements of in-vivo knee joint kinematics are essential to elucidate healthy knee motion and the changes that accompany injury and repair. Although numerous experimental measurements have been reported, the accurate non-invasive analysis of in-vivo knee kinematics remains a challenge in biomechanics.
Research question: The study objective was to investigate in-vivo knee kinematics before, at, and after contact during walking and running using a combined high-speed dual fluoroscopic imaging system (DFIS) and magnetic resonance (MR) imaging technique.
Methods: Three-dimensional (3D) knee models of ten participants were created using MR images. Knee kinematics during walking and running were determined using high-speed DFIS. The 3D knee models were then related to fluoroscopic images to obtain in-vivo six-degrees-of-freedom knee kinematics.
Results: Before contact knee flexion, external femoral rotation, and proximal-distal distance were 11.9°, 3.4°, and 1.0 mm greater during running compared to walking, respectively. Similar differences were observed at initial contact (9.9°, 7.9°, and 0.9 mm, respectively) and after contact (6.4°, 2.2°, and 0.8 mm, respectively). Posterior femoral translation at initial contact was also increased during running compared to walking.
Significance: This study demonstrated accurate instantaneous in-vivo knee kinematic characteristics that may further the understanding of the intrinsic biomechanics of the knee during gait.