Abstract
Several neuromuscular disorders cause trunk unstability. External support such as seating aids, orthoses, or external muscle control by FES, are then needed. In this paper, we investigate the static requirement for stabilizing the trunk in the sagittal plane while standing or sitting. A simple biomechanical model is used, composed of two moving segments, the pelvis and the upper trunk. We evaluate the stabilizing effort by the critical stiffness, the minimal linear stiffness required for making the posture stable against the gravity forces. Three basic situations are compared: standing erect, sitting erect unsupported and with a backrest. This preliminary study shows the importance of pelvis posture and motion in stabilizing the trunk. It confirms the importance of pelvis stabilization.
| Original language | English |
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| Title of host publication | Proceedings of the 5th Annual Conference of the International Functional Electrical Stimulation Society (IFESS 2000) |
| Subtitle of host publication | Aalborg, Denmark, 17th-21st June 200 |
| Editors | Thomas Sinkjær, Dejan Popović, Johannes J. Struijk |
| Place of Publication | Aalborg, Denmark |
| Publisher | Center for Sensory-Motor Interaction (SMI) |
| Pages | 466-469 |
| Number of pages | 4 |
| ISBN (Print) | 87-90562-01-1 |
| Publication status | Published - 18 Jun 2000 |
| Event | 5th Annual Conference of the International Functional Electrical Stimulation Society, IFESS 2000 - Aalborg, Denmark Duration: 17 Jun 2000 → 21 Jun 2000 Conference number: 5 |
Conference
| Conference | 5th Annual Conference of the International Functional Electrical Stimulation Society, IFESS 2000 |
|---|---|
| Abbreviated title | IFESS |
| Country/Territory | Denmark |
| City | Aalborg |
| Period | 17/06/00 → 21/06/00 |
Keywords
- Biomechanics
- Seating
- Stability
- Wheelchair
