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
129-155
Whitall, Jill
9761aefb-be80-4270-bc1f-0e726399376e
Getchell, Nancy
ad8930a7-1a17-4c02-941a-cbe52984277f
February 1996
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), .
(doi:10.1016/0167-9457(95)00038-0).
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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