Journal article
Analysis of arm trajectories of everyday tasks for the development of an upper-limb orthosis
IEEE transactions on rehabilitation engineering, v 8(1), pp 60-70
01 Jan 2000
PMID: 10779109
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Spatiotemporal arm and body movements of able-bodied subjects performing nine everyday tasks were recorded for the purpose of guiding the development of an upper-limb orthosis. To provide a user the opportunity to carry out these tasks with natural movements, the orthosis should allow replication of the measured trajectories. We outline the orthosis architecture, which supports the user's upper arm and forearm, and analyze the movement data to obtain orthosis design specifications. Trajectories were obtained using six-degree-of-freedom magnetic position sensors affixed to the wrist, elbow, shoulder, trunk and head. Elbow trajectory data were decomposed into ranges along the principle Cartesian axes to provide a generally useful envelope measure. The smallest Cartesian parallelepiped that contained the elbow trajectories for most tasks was approximately 30 cm front/back, 15 cm side/side, and 17 cm up /down. A rough lower bound estimate obtained by asking subjects to repeat the tasks while minimizing elbow movement substantially reduced movement in the up/down and side/side dimensions. Elbow angles were generally in the range 50 degree -150 degree , and the angle of the forearm with respect to vertical was 10 degree -110 degree . Raw trajectory data may be downloaded from www://asel.udel.edu/robotics/orthosis /range.html.
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Details
- Title
- Analysis of arm trajectories of everyday tasks for the development of an upper-limb orthosis
- Creators
- Rungun Ramanathan - Dept. of Comput. & Information Sci., Pennsylvania Univ., Philadelphia, PA, USASilvio Eberhardt - Alfred I. duPont Hospital for ChildrenTariq Rahman - Alfred I. duPont Hospital for ChildrenWhitney Sample - Alfred I. duPont Hospital for ChildrenRami SeliktarMichael Alexander - Alfred I. duPont Hospital for Children
- Publication Details
- IEEE transactions on rehabilitation engineering, v 8(1), pp 60-70
- Publisher
- The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; [Retired Faculty]
- Web of Science ID
- WOS:000087191900008
- Scopus ID
- 2-s2.0-0034058924
- Other Identifier
- 991019167912304721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical
- Rehabilitation