Kinematic Features of Unrestrained Arm Movements

Unrestrained human arm trajectories between point targets have been investigated using a three dimensional tracking apparatus, the Selspot system. Movements were executed between different points in a vertical plane under varying conditions of speed and hand-held load. In contrast to past resu...

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Main Authors: Atkeson, Christopher G., Hollerback, John M.
Language:en_US
Published: 2004
Online Access:http://hdl.handle.net/1721.1/6412
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author Atkeson, Christopher G.
Hollerback, John M.
author_facet Atkeson, Christopher G.
Hollerback, John M.
author_sort Atkeson, Christopher G.
collection MIT
description Unrestrained human arm trajectories between point targets have been investigated using a three dimensional tracking apparatus, the Selspot system. Movements were executed between different points in a vertical plane under varying conditions of speed and hand-held load. In contrast to past results which emphasized the straightness of hand paths, movement regions were discovered in which the hand paths were curved. All movements, whether curved or straight, showed an invariant tangential velocity profile when normalized for speed and distance. The velocity profile invariance with speed and load is interpreted in terms of simplification of the underlying arm dynamics, extending the results of Hollerbach and Flash (1982).
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spelling mit-1721.1/64122019-04-12T07:40:30Z Kinematic Features of Unrestrained Arm Movements Atkeson, Christopher G. Hollerback, John M. Unrestrained human arm trajectories between point targets have been investigated using a three dimensional tracking apparatus, the Selspot system. Movements were executed between different points in a vertical plane under varying conditions of speed and hand-held load. In contrast to past results which emphasized the straightness of hand paths, movement regions were discovered in which the hand paths were curved. All movements, whether curved or straight, showed an invariant tangential velocity profile when normalized for speed and distance. The velocity profile invariance with speed and load is interpreted in terms of simplification of the underlying arm dynamics, extending the results of Hollerbach and Flash (1982). 2004-10-04T14:55:34Z 2004-10-04T14:55:34Z 1984-07-01 AIM-790 http://hdl.handle.net/1721.1/6412 en_US AIM-790 3907703 bytes 3053392 bytes application/postscript application/pdf application/postscript application/pdf
spellingShingle Atkeson, Christopher G.
Hollerback, John M.
Kinematic Features of Unrestrained Arm Movements
title Kinematic Features of Unrestrained Arm Movements
title_full Kinematic Features of Unrestrained Arm Movements
title_fullStr Kinematic Features of Unrestrained Arm Movements
title_full_unstemmed Kinematic Features of Unrestrained Arm Movements
title_short Kinematic Features of Unrestrained Arm Movements
title_sort kinematic features of unrestrained arm movements
url http://hdl.handle.net/1721.1/6412
work_keys_str_mv AT atkesonchristopherg kinematicfeaturesofunrestrainedarmmovements
AT hollerbackjohnm kinematicfeaturesofunrestrainedarmmovements