Effector dynamics of rhythmic wrist activity and its implications for (modeling) bimanual coordination

Ridderikhoff, A, Peper, CLE, Carson, RG and Beek, PJ (2004) Effector dynamics of rhythmic wrist activity and its implications for (modeling) bimanual coordination. Human Movement Science, 23 3-4: 285-313. doi:10.1016/j.humov.2004.08.008

Author Ridderikhoff, A
Peper, CLE
Carson, RG
Beek, PJ
Title Effector dynamics of rhythmic wrist activity and its implications for (modeling) bimanual coordination
Journal name Human Movement Science   Check publisher's open access policy
ISSN 0167-9457
Publication date 2004
Sub-type Article (original research)
DOI 10.1016/j.humov.2004.08.008
Volume 23
Issue 3-4
Start page 285
End page 313
Total pages 29
Editor P.J. Beek
P. van Wieringen
Place of publication Amsterdam
Publisher Elsevier
Collection year 2004
Language eng
Subject C1
321403 Motor Control
780108 Behavioural and cognitive sciences
Abstract To examine the role of the effector dynamics of the wrist in the production of rhythmic motor activity, we estimated the phase shifts between the EMG and the task-related output for a rhythmic isometric torque production task and an oscillatory movement, and found a substantial difference (45-52degrees) between the two. For both tasks, the relation between EMG and task-related output (torque or displacement) was adequately reproduced with a physiologically motivated musculoskeletal model. The model simulations demonstrated the importance of the contribution of passive structures to the overall dynamics and provided an account for the observed phase shifts in the dynamic task. Additional simulations of the musculoskeletal model with added load suggested that particular changes in the phase relation between EMG and movement may follow largely from the intrinsic muscle dynamics, rather than being the result of adaptations in the neural control of joint stiffness. The implications of these results are discussed in relation to (models of) interlimb coordination in rhythmic tasks. (C) 2004 Elsevier B.V. All rights reserved.
Keyword Neurosciences
Sport Sciences
Psychology, Experimental
Interlimb Coordination
Nonequilibrium Phase-transitions
Human Hand Movements
Neural Compensation
Relative Phase
Critical Fluctuations
Coupled Oscillations
Biological Motion
Ipsilateral Hand
External Force
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2005 Higher Education Research Data Collection
School of Human Movement and Nutrition Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 10 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
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Created: Wed, 15 Aug 2007, 03:27:06 EST