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Multilimb coordination patterns in simultaneous, dissimilar upper and lower limb tasks

Multilimb coordination patterns in simultaneous, dissimilar upper and lower limb tasks
Multilimb coordination patterns in simultaneous, dissimilar upper and lower limb tasks
Multilimb coordination was examined when subjects clapped (in-phase pattern) while walking (out-of-phase pattern) or galloping (off-phase pattern). Based on previous studies of rhythmic limb movements it was predicted that in-phase frequency-locked coordination would be the most attractive mode, although a previous study by Muzii et al. (1984) had suggested that other coordination modes existed. Subjects clapped and walked or galloped at a preferred speed and at one of four different task manipulations: extended practice, overall speed, temporal and spatial. The resultant multilimb coordination patterns were classified in terms of frequency-locking, phase relationships and stability of between-girdle and within-girdle relationships. Absolute step frequency-locking was the most attractive coordination mode for the clap/walk task, but an unlocked-stable coordination mode was also present. For the clap/gallop, absolute stride frequency-locking was the only attractive coordination mode. Subjects tended to be stable in their preferences across trials and across changes in speed or they adopted a frequency-locked mode. Temporal and spatial manipulations of one limb girdle with respect to the other most commonly resulted in an unlocking of frequency, although there was much inter-subject variability and signs of individual attentional strategies. In general, the results indicated that coordination was a product of a complex interaction of organismic and task constraints, but with many characteristics that are consistent with a general dynamical systems perspective on rhythmic interlimb coordination
0167-9457
129-155
Whitall, Jill
9761aefb-be80-4270-bc1f-0e726399376e
Getchell, Nancy
ad8930a7-1a17-4c02-941a-cbe52984277f
Whitall, Jill
9761aefb-be80-4270-bc1f-0e726399376e
Getchell, Nancy
ad8930a7-1a17-4c02-941a-cbe52984277f

Whitall, Jill and Getchell, Nancy (1996) Multilimb coordination patterns in simultaneous, dissimilar upper and lower limb tasks. Human Movement Science, 15 (1), 129-155. (doi:10.1016/0167-9457(95)00038-0).

Record type: Article

Abstract

Multilimb coordination was examined when subjects clapped (in-phase pattern) while walking (out-of-phase pattern) or galloping (off-phase pattern). Based on previous studies of rhythmic limb movements it was predicted that in-phase frequency-locked coordination would be the most attractive mode, although a previous study by Muzii et al. (1984) had suggested that other coordination modes existed. Subjects clapped and walked or galloped at a preferred speed and at one of four different task manipulations: extended practice, overall speed, temporal and spatial. The resultant multilimb coordination patterns were classified in terms of frequency-locking, phase relationships and stability of between-girdle and within-girdle relationships. Absolute step frequency-locking was the most attractive coordination mode for the clap/walk task, but an unlocked-stable coordination mode was also present. For the clap/gallop, absolute stride frequency-locking was the only attractive coordination mode. Subjects tended to be stable in their preferences across trials and across changes in speed or they adopted a frequency-locked mode. Temporal and spatial manipulations of one limb girdle with respect to the other most commonly resulted in an unlocking of frequency, although there was much inter-subject variability and signs of individual attentional strategies. In general, the results indicated that coordination was a product of a complex interaction of organismic and task constraints, but with many characteristics that are consistent with a general dynamical systems perspective on rhythmic interlimb coordination

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Published date: February 1996
Organisations: Faculty of Health Sciences

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Local EPrints ID: 360770
URI: http://eprints.soton.ac.uk/id/eprint/360770
ISSN: 0167-9457
PURE UUID: b0e02fb2-b603-482c-8278-fd953af66d2f

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Date deposited: 20 Dec 2013 14:37
Last modified: 14 Mar 2024 15:41

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Author: Jill Whitall
Author: Nancy Getchell

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