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Constant angular velocity of the wrist during the lifting of a sphere.

Constant angular velocity of the wrist during the lifting of a sphere.
Constant angular velocity of the wrist during the lifting of a sphere.
The primary objective of the experiments was to investigate the wrist motion of a person while they were carrying out a prehensile task from a clinical hand function test. A sixcamera movement system was used to observe the wrist motion of 10 participants. A very light sphere and a heavy sphere were used in the experiments to study any mass effects. While seated at a table, a participant moved a sphere over a small obstacle using their dominant hand. The participants were observed to move their wrist at a constant angular velocity. This phenomenon has not been reported previously. Theoretically, the muscles of the wrist provide an impulse of force at the start of the rotation while the forearm maintains a constant vertical force on a sphere. Light–heavy mean differences for the velocities, absolute velocities, angles and times taken showed no significant differences (p¼0.05).
0309-1902
274-284
Chappell, Paul
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Metcalf, Cheryl
09a47264-8bd5-43bd-a93e-177992c22c72
Burridge, Jane
7c453775-c3ae-4d55-99af-2ed8600ca680
Yule, Victoria
6ff7c9e5-21e9-4ae4-aa18-ab98480f83bb
Pickering, R M
4a828314-7ddf-4f96-abed-3407017d4c90
Chappell, Paul
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Metcalf, Cheryl
09a47264-8bd5-43bd-a93e-177992c22c72
Burridge, Jane
7c453775-c3ae-4d55-99af-2ed8600ca680
Yule, Victoria
6ff7c9e5-21e9-4ae4-aa18-ab98480f83bb
Pickering, R M
4a828314-7ddf-4f96-abed-3407017d4c90

Chappell, Paul, Metcalf, Cheryl, Burridge, Jane, Yule, Victoria and Pickering, R M (2010) Constant angular velocity of the wrist during the lifting of a sphere. Journal of Medical Engineering and Technology, 34 (4), 274-284.

Record type: Article

Abstract

The primary objective of the experiments was to investigate the wrist motion of a person while they were carrying out a prehensile task from a clinical hand function test. A sixcamera movement system was used to observe the wrist motion of 10 participants. A very light sphere and a heavy sphere were used in the experiments to study any mass effects. While seated at a table, a participant moved a sphere over a small obstacle using their dominant hand. The participants were observed to move their wrist at a constant angular velocity. This phenomenon has not been reported previously. Theoretically, the muscles of the wrist provide an impulse of force at the start of the rotation while the forearm maintains a constant vertical force on a sphere. Light–heavy mean differences for the velocities, absolute velocities, angles and times taken showed no significant differences (p¼0.05).

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More information

Published date: May 2010
Organisations: Primary Care & Population Sciences, Advancing Clinical & Expert Practice, EEE

Identifiers

Local EPrints ID: 270853
URI: https://eprints.soton.ac.uk/id/eprint/270853
ISSN: 0309-1902
PURE UUID: 2603b2dc-d3b4-4354-9db9-27c3036859a7
ORCID for Cheryl Metcalf: ORCID iD orcid.org/0000-0002-7404-6066

Catalogue record

Date deposited: 19 Apr 2010 15:26
Last modified: 06 Jun 2018 12:43

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