All joint moments significantly contribute to trunk angular acceleration |
| |
| Authors: | Cameron R Nott Felix E Zajac Richard R Neptune Steven A Kautz |
| |
| Institution: | 1. Rehabilitation Research and Development Center of Excellence, VAPSHCS, Department of Veterans Affairs, Seattle, WA, USA;2. Department of Radiology, VAPSHCS, Department of Veterans Affairs, Seattle, WA, USA;3. Department of Rehabilitation Medicine, University of Washington, Seattle, WA, USA;4. Department of Radiology, University of Washington, Seattle, WA, USA;1. Mathematisches Institut, Universität Koblenz, Universitätsstr. 1, Koblenz 56070, Germany;2. Institut für Sport- und Bewegungswissenschaft, Universität Stuttgart, Human Movement Simulation Lab, Allmandring 28, Stuttgart 70569, Germany;3. Institut für Sportwissenschaft, Friedrich–Schiller–Universität, Lehrstuhl für Bewegungswissenschaft, Seidelstraße 20, Jena 07749, Germany |
| |
| Abstract: | Computationally advanced biomechanical analyses of gait demonstrate the often counter-intuitive roles of joint moments on various aspects of gait such as propulsion, swing initiation, and balance. Each joint moment can produce linear and angular acceleration of all body segments (including those on which the moment does not directly act) due to the dynamic coupling inherent in the interconnected musculoskeletal system. This study presents quantitative relationships between individual joint moments and trunk control with respect to balance during gait to show that the ankle, knee, and hip joint moments all affect the angular acceleration of the trunk. We show that trunk angular acceleration is affected by all joints in the leg with varying degrees of dependence during the gait cycle. Furthermore, it is shown that inter-planar coupling exists and a two-dimensional analysis of trunk balance neglects important out-of-plane joint moments that affect trunk angular acceleration. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
