van-Loon, Buekers, Helsen and Magill (1998) Temporal and spatial adaptations during the acquisition of a reversal movement

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Temporal and spatial adaptations during the acquisition of a reversal movement

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CONTRIBUTORS:

	Author:	van-Loon, E. M.
	Author:	Buekers, M. J.
	Author:	Helsen, W.
	Author:	Magill, R. A. (Louisiana State University-Baton Rouge)

JOURNAL:

Research Quarterly for Exercise and Sport (RQES), 69(1), 38 - 46.

YEAR:

1998

PUB TYPE:

Journal Article

SUBJECT(S):

kinematics; feedback; movement; pattern; knowledge-of-results; comparative-study; young-adult

DISCIPLINE:

No discipline assigned

HTTP:

https://secure.sportquest.com/su.cfm?articleno=462025&title=462025

LANGUAGE:

English

PUB ID:

103-342-528 (Last edited on 2002/02/27 18:44:09 US/Mountain)

SPONSOR(S):

ABSTRACT:
Adjustments of the biphasic movement in a coincidence anticipation task were studied using an erroneous knowledge of results (KR) paradigm. Forty participants received either no KR, correct KR, erroneous (+100 ms) KR, or 100 trials of correct KR followed by 50 trials of erroneous KR. Kinematic analyses revealed that for this 100-50 KR group the extension part of the movement was temporally adjusted under the influence of erroneous KR. Although accompanied by a decrease in movement amplitude, this did not account for the temporal shift in movement outcome, because all groups showed a reduction in amplitude. It is argued that changing external time constraints mainly results in temporal adaptations. However, spatial adaptations do play a role in kinematic changes during acquisition.

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