Format

Send to

Choose Destination
J Mot Behav. 2006 Jan;38(1):7-14.

Neuromuscular-skeletal origins of predominant patterns of coordination in rhythmic two-joint arm movement.

Author information

1
Perception and Motor Systems Laboratory, School of Human Movement Studies, Room, 424, The University of Queensland, Brisbane, QLD 424, Australia. aymar@hms.uq.edu.au

Abstract

The authors tested for predominant patterns of coordination in the combination of rhythmic flexion-extension (FE) and supination- (SP) at the elbow-joint complex. Participants (N=10) spontaneously established in-phase (supination synchronized with flexion) and antiphase (pronation synchronized with flexion) patterns. In addition, the authors used a motorized robot arm to generate involuntary SP movements with different phase relations with respect to voluntary FE. The involuntarily induced in-phase pattern was accentuated and was more consistent than other patterns. The result provides evidence that the predominance of the in-phase pattern originates in the influence of neuromuscular-skeletal constraints rather than in a preference dictated by perceptual-cognitive factors implicated in voluntary control. Neuromuscular-skeletal constraints involved in the predominance of the in-phase and the antiphase patterns are discussed.

PMID:
16436358
DOI:
10.3200/JMBR.38.1.7-14
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center